Kyushu University Academic Staff Educational and Research Activities Database
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Seongho YOON Last modified date:2023.11.22



Graduate School
Undergraduate School
炭素資源国際教育研究センター、炭素資源学特論IV
炭素資源国際教育研究センター、炭素資源学特論III(英語授業)
炭素資源国際教育研究センター、炭素資源学特論IV
炭素資源国際教育研究センター、炭素資源学特論III(英語授業)
炭素資源国際教育研究センター、炭素資源学特論III(英語授業)
炭素資源国際教育研究センター、炭素資源学特論IV
総合理工学府量子プロセス理工学専攻
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Homepage
https://kyushu-u.elsevierpure.com/en/persons/seong-ho-yoon
 Reseacher Profiling Tool Kyushu University Pure
http://carbon.cm.kyushu-u.ac.jp/index-en.htm
Carbon Science Laboratory
YOON・Miyawaki Laboratory .
http://carbon.cm.kyushu-u.ac.jp/index-en.htm
Carbon Science Laboratory
YOON・Miyawaki Laboratory .
http://carbon.cm.kyushu-u.ac.jp/index-en.htm
Functional Advanced Carbon Laboratory
YOON Laboratory .
http://carbon.cm.kyushu-u.ac.jp/index-en.htm
Functional Advanced Carbon Laboratory
YOON Laboratory .
Phone
092-583-7959
Fax
092-583-7897
Academic Degree
Ph. D. Kyushu University 1994,3, MSc. Seoul National University, 1985,2, Bachelor of engineering. Seoul National University, 1983,2
Country of degree conferring institution (Overseas)
Yes Bachelor Master
Field of Specialization
Carbon materias Science
ORCID(Open Researcher and Contributor ID)
0000-0003-0352-3838
Total Priod of education and research career in the foreign country
21years00months
Outline Activities
I have been studying syntheses, structural analyses and applications of high performance and high functional carbon materials and their precursors during last 25 years. The subjects mainly concerned are; (1) Nanocarbons and their applications, (2) Synthesis, modification, structural analyses, and their applications of carbon materials such as pitch and mesophase pitch, high performance carbon fiber and activated carbon fiber, meso-carbon microbead, electrode materials for Li-ion batteries, EDLC, and small fuel cell. (3) Environmental protection using activated carbons and activated carbon fibers for DeNOx, DeSOx, and removal of sick-house gases containing HCHO, and (4) high utilizations of coal and petroleum through the effective conversions of coal to syngas and heavy oils to light oils with gasification and hydrogen and hydro-cracking, respectively.
Research
Research Interests
  • Development of high quality precursors for premium grade synthetic graphite
    keyword : synthetic graphite, petroleum based binder pitch, high yield, high density
    2019.07~2023.12.
  • Development of activated carbon from marine biomass
    keyword : Actived carbon,Marine biomass
    2022.04~2024.03.
  • Low environmental load combustion technology with innovative oxygen-enriched TSA
    keyword : oxygen-enriched TSA
    2021.04~2023.03.
  • Research and development that contributes to the multifaceted use of marine biomass for steelmaking
    keyword : Marine biomass
    2021.04~2023.03.
  • Development of high quality precursors for premium grade synthetic graphite
    keyword : synthetic graphite, petroleum based binder pitch, high yield, high density
    2019.07~2024.12.
  • Development of high efficient CO2 coal gasification
    keyword : CO2 coal gasification, slug
    2017.04~2022.03.
  • Development of high yield mesophase pitch precursor for high performance pitch-derived carbon fiber
    keyword : high performance pitch-derived carbon fiber, mesophase pitch, high yield
    2017.01~2021.12.
  • Development of low cost high performance pitch-derived carbon fiber
    keyword : low cost high performance pitch-derived carbon fiber
    2015.09~2018.08.
  • Development of effective catalyst and process for desulfurization of Kuwait heavy oil
    keyword : Heavy oil, hydrogenation, catalyst
    2013.04~2016.03.
  • High utilization of hyper coal
    keyword : hyper coal, pitch, carbon fiber
    2006.07~2016.03.
  • Development of effective activated carbon for super capacitor of high potential
    keyword : activated carbon, super capacitor, high potential
    2013.07~2016.03.
  • High utilization of ethylene bottom oil
    keyword : high utilization, ethylene bottom oil
    2012.04~2016.03.
  • Development of mosaic coke for Li-ion battery
    keyword : Mosaic coke, Li-ion battery
    2012.10~2015.09.
  • Development of carboneous adsorbent for adsorptive heat pump
    keyword : activated carbon, adsorption, heat pump
    2010.10~2017.03.
  • Development of demetallization process for AR and VR
    keyword : Demetalization, Heavy Oil
    2010.02~2017.03.
  • A high utilization of low rank coal into coke for blast furnace
    keyword : Low rank coal, Coke, Soft pitch
    2009.12~2013.03.
  • High utilization of Arabian heavy oil and residues
    keyword : Arabian Crude, Heavy Oil, High Utilization
    2009.10~2017.03.
  • Study for the improvement of raw coal tar in carbon black production
    keyword : Carbon black, Tar
    2007.04~2017.03.
  • Development of CO2 recycled IGCC
    keyword : IGCC、Coal, Gasification, CO2
    2008.04~2015.03.
  • Innovative improvement of the performance of Synthetic Graphite
    keyword : Synthetic Carbon, Domain theory
    2012.05~2015.12.
  • Development of high performance carbonfiber from ethylene bottoms
    keyword : carbon fiber, ethylene bottoms, isotropic pitch
    2012.03~2013.12.
  • Development of high performance activated carbon and its applications to heat pump and cooling cycle
    keyword : activated carbon, adsorption, heat pump
    2010.10~2015.03.
  • Low cost CNF for the additive of refactory
    keyword : CNF, refactory, MgO
    2011.08~2012.03.
  • Development of High Performance Nanofluid
    Using Well-Dispersed Graphene Disc

    keyword : CNF, nano-graphene, nanofluid
    2011.03~2013.03.
  • Development of innovative anodic materials using nano-gate principle
    keyword : CNF, battery, anode, nano-gate
    2010.12~2013.03.
  • Preparation and application of homogeneous nano-graphene
    keyword : CNF, nano-graphene
    2010.04~2011.03.
  • Study for the improvement of raw coal tar in carbon black production
    keyword : Carbon black, coal tar
    2009.10~2011.09.
  • Study of the yield improvement of synthetic graphite
    keyword : synthetic graphite, binder, coke
    2011.01~2011.12.
  • Development of high utilization method for ethylene bottom oils
    keyword : High utilization, ethylene bottom oils
    2009.12~2011.03.
  • Development of demetallization process for AR and VR
    keyword : Demetallization、Heavy oils
    2010.02~2012.02.
  • High utilization of Arabian heavy oil and residues
    keyword : Arabian crude、high utilization
    2009.04~2012.03.
  • A high utilization of low rank coal into coke for blust furnace
    keyword : Low rank coal, Coke, Soft Pitch
    2009.12~2013.03.
  • A high utilization of coal tar (coal tar pitch) into binder pitch
    keyword : binder pitch, Coal tar, Soft Pitch
    2010.02~2012.11.
  • A high utilization of coal tar (coal tar pitch) into needle coke
    keyword : needle coke, Coal tar, Soft Pitch
    2010.02~2012.11.
  • Development of CO2 recycled IGCC
    keyword : IGCC, Coal, Gasification, CO2 recycle
    2008.10~2018.03.
  • A high utilization of coal tar (coal tar pitch) into needle coke
    keyword : needle coke, Coal tar, Soft Pitch
    2008.10~2009.09.
  • Development of refractory for iron-making using novel CNF-MgO composites
    keyword : carbon nanofiber, Refractory for steel making, Compositeness, Strength
    2009.10~2009.09.
  • A basic researches for smooth operation of EAGLE IGFC and acceptance estimation of high ash coal for IGFC
    keyword : EAGLE IGFC, Gasification mechanism
    2008.04~2010.03.
  • To improve RDS performance for more VR processing by using additive
    keyword : Petroeum Heavy Oil, RDS, VR, Demetallization
    2008.04~2010.02To improve RDS performance for more VR processing by using additive.
  • Strategic Japanese-Chinese Cooperative Programme on
    “Material Technology for Environmental Conservation and Advanced Utilization of Energy”

    keyword : ACF, DeNOx of raod side environment
    2008.04~2010.03.
  • Structural analysis of carbon black
    keyword : Carbon black, structure
    2008.10~2010.09.
  • Removal of low concentrated formaldehyde using MnOx supported PAN-based activated carbon nanofiber
    keyword : Atmospheric purification, formaldehyde, activated carbon fiber, mangese oxide
    2008.04~2009.03.
  • Development of anodic materials of high capacity and rate property for Li-ion battery using HDPC
    keyword : Li-ion battery, anodic material, high rate property
    2008.04~2010.03.
  • High functional de-NOx system using ACF derived with natural wind
    keyword : activated carbon fiber,NOx, Atmospheric purification
    2008.04~2009.02.
Current and Past Project
  • Development of activated carbon from marine biomass
  • Yield improvement of synthetic graphite
  • Mild Hydro-cracking of LCO & Evaluation of Gas Oil HDS Catalysts
  • Development of high utilization processes of Austrailian Brown Coal
  • Reforming of Indonesian brown coal to coke for blast furnace
  • High Utilizations of Indonesian Biomass and Brown coal
  • Development of coke for blust furnace using Indonesian low rank coal
  • 1. Urgent application of activated carbon fibers at the polluted sites. Activated carbon fibers in the honeycomb or felt forms are placed in the polluted areas to examine its activity for removal of SOx and NOx (NO2 and NO, separately).
    The sites should be appropriately chosen in terms of origins and flow of pollutants. The honeycomb or slit must be carefully adjusted to the flow rate of pollutants in the atmosphere. When gas flow is forced by using a blower or a compressor, the design becomes very easy.
    Japanese and Chinese researchers study co-operatively (1) on the site of atmosphere cleaning analyses of pollutants behaviors, on final forms of pollutants after the fixation and optimum housing, to design the best forms of activated carbon fiber. After setting the facility, the performances of the facility is analyzed by measuring the state of the atmosphere and pollutant behaviors for a certain period of time (for at least three months, when taking into account the seasonal changes and life-cycles of facility and fibers).
    To achieve this objective, Kyushu University transfers to the partner group of Tsinghua University, the technologies for the preparation, handling and activity test of the activated carbon fiber for application to DeSOx and DeNOx, and the removal of particulates. DeSOx and DeNOx are to be improved in design at Kyushu University through separate steps. Respective steps are still being extensively studied for their optimization.
    The similar facilities are examined at the indoor sites, where a large number of people and automobiles gather, for the aim of the basic study and other application. Forced gas flow can be applied in such situations.
  • Development of high performance anodic catalyst for DMFC using mesoporous CNF
  • Preparation and applications of carbon nanofibers as catalysts and catalyst supports for the environmental protection
Academic Activities
Reports
1. Hiroki Shimanoe, Takashi Mashio, Taisei Tomaru, Seung-Jae Ha, Young-Pyo Jeon, Koji Nakabayashi, Jin Miyawaki, Seong-Ho Yoon, Understanding mesophase pitch from a lyotropic liquid crystalline perspective, Carbon Reports, 2-1, 2–22 (2023), https://doi.org/10.7209/carbon.020105, 53-6, 382-386, 2023.03.
2. 持田勲, 尹 聖昊, Min-Hyun Seo, 伝統的ではあるが,競争力のある炭素材料の現状, 炭素, 2015.02.
3. Yang Kapseung, Kim Bohye, 尹 聖昊, Pitch based carbon fibers for automotive body and electrodes, Carbon Letters, 2014.10.
4. Mochida Isao, Okuma Osamu, 尹 聖昊, Chemicals from coal liquefaction, Chemical Reviews, ACS, 114 (3), 1637–1672 (2014), 2014.03.
5. 尹 聖昊, Coal (1): Why do we need again coal now in the 21st century? A preface to a series of lecture note on coal bases, Journal of the Japan Institute of Energy, 89, 927-933, 2010., 2010.12.
Papers
1. Hiroki Shimanoe, Takashi Mashio, Taisei Tomaru, Seung-Jae Ha, Young-Pyo Jeon, Koji Nakabayashi, Jin Miyawaki, Seong-Ho Yoon, Understanding mesophase pitch from a lyotropic liquid crystalline perspective, Carbon Reports, 2-1, 2–22 (2023), https://doi.org/10.7209/carbon.020105, 2, 1, 2-22, 2023.03, This review explores recent research regarding mesophase pitch (MP). Spinnable mesophase pitch (SMP) was used as a model pitch for MP in all experiments. We explain some phenomenological results of the lyotropic liquid crystalline properties of the SMP, which show that the MP behaves as a typical lyotropic liquid crystal. The mesogenic and solvent components of SMP are defined. We define the threshold concentration (TC) as the minimum amount of mesogenic component necessary for SMP to achieve 100 vol% anisotropy. We also report the TCs of various SMPs and discuss the effects of the solvent
component. Concerning the identity of the mesogenic component, we discuss quantitative correlations between the size of the layered molecular stacking units and the anisotropic content of the SMP. Research has shown that a layered molecular stacking unit larger than a specific size corresponds to the mesogenic component of the MP. We discuss a novel method for the manufacture of SMPs using our understanding of MP as a lyotropic liquid crystal, which comprises thermal mixing of optimal amounts of the mesogenic and solvent components that were prepared separately under different conditions. This method enables the properties of each component to be optimized without involving a costly hydrogenation process. Finally, we discuss how this approach can be used to increase SMP yield by modifying the contents of the anisotropic mesogenic and
solvent components..
2. Hiroki Shimanoe, Takashi Mashio, Taisei Tomaru, Seung-Jae Ha, Young-Pyo Jeon, Koji Nakabayashi, Jin Miyawaki, Seong-Ho Yoon, Evaluation of the utility of isotropic pitches as solvent components of spinnable mesophase pitch precursors for highly graphitizable functional carbon materials, Journal of Industrial and Engineering Chemistry, 120, 25 325-331 (2023), https://doi.org/10.1016/j.jiec.2022.12.039, 120, 25, 325-331, 2023.02.
3. Hiroki Shimanoe, Takashi Mashio, Taisei Tomaru, Seung-Jae Ha, Young-Pyo Jeon, Koji Nakabayashi, Jin Miyawaki, Seong-Ho Yoon, Analysis of spinnable mesophase pitch in terms of lyotropic liquid crystalline solution, Carbon Letters, 33, 713–726 (2023), https://doi.org/10.1007/s42823-022-00453-4. , 33, 713-726, 2023.02.
4. Da HE, Ryo SAKAI, Hyeonseok YI, Koji SAITO, Toru KATO, Chika KOSUGI, Koji NAKABAYASHI, Seong-Ho YOON, Jin MIYAWAKI, Component analysis by solid-state NMR for effective utilization of marine biomass, Keiko IDETA
, Proceedings of Conference on Coal Science, 59 (2022). , https://doi.org/10.20550/jiesekitanronbun.59.0_74, 59, 2022.12.
5. Da HE, Ryo SAKAI, Keiko IDETA, Hyeonseok YI, Koji SAITO, Toru KATO, Chika KOSUGI, Koji NAKABAYASHI, Seong-Ho YOON, Jin MIYAWAKI, A Study of Pyrolysis Characteristics and Removal Method of Hetero-elements for Production of Marine Biomass-based Carbon Materials, Proceedings of Conference on Coal Science, 59 (2022). , https://doi.org/10.20550/jiesekitanronbun.59.0_76, 59, 2022.12.
6. Dong‑Yeon Ryu, Doo‑Won Kim, Yu‑Jin Kang, Youngjin Lee, Koji Nakabayashi1, Jin Miyawaki, Joo‑Il Park, Preparation of environmental‑friendly N‑rich chitin‑derived activated carbon for the removal of formaldehyde, Carbon Letters, 10.1007/s42823-022-00379-x, 32, 6, 1473-1479, 32, Issue 6, Pages 1473 - 1479October 2022, 2022.12, A conventional porous carbon is still a very promising material for the removal of gaseous pollutants because of its abundant surface functional groups and a high specific surface area. Here, we prepared an environment-friendly uniform N-rich narrow micropore activated carbon, for the removal of formaldehyde, based on steam activation and N-rich with chitin as the starting material. A sample carbonized at 500 °C and steam activated at 800 °C (CAC800) showed a reasonable yield (55%) with uniform and narrow micropores without mesopores but having a balanced nitrogen functionality. CAC800 possesses outstanding formaldehyde removal capabilities under both dry and wet (humidity 45%) conditions. In addition, when compared with commercial activated carbon materials, we clearly demonstrated that the existence of high nitrogen content with uniform and narrow micropores simultaneously removed formaldehyde, effectively..
7. Lee, Song Mia;Lee, Seon Ho;Park, Seungjooa;Yoon, Seong-Ho;Jung, Doo-Hwan, Preparation of mesoporous activated carbon by preliminary oxidation of petroleum coke with hydrogen peroxide and its application in capacitive deionization, Desalination , 10.1016/j.desal.2022.115901, 5391, Article number 115901, Volume 5391 October 2022 Article number 115901, 2022.10, Capacitive desalination is a very promising method for the supply of high-tech industrial water in the future. In this study, activated carbon with both specific surface area and mesopores developed at the same time was prepared by preliminarily oxidized petroleum coke with hydrogen peroxide and then activating it with KOH. Hydrogen peroxide used for preliminary oxidation penetrates deep to the inside as well as the surface of petroleum coke to increase reactivity upon activation, forming pores to the depth of petroleum coke to create high specific surface area activated carbon with developed mesopores. Activated carbon prepared by preliminarily oxidized petroleum coke had high specific surface area and mesopores. In particular, OMC-35 had a specific surface area of 3032 m2/g and the highest mesopores of 0.82 cm3/g. As a result, OMC-35 had an excellent capacitance of 196.9 F/g at a scan rate of 5 mV/s. In addition, OMC-35 showed a salt adsorption capacity (SAC) of 19.5 mg/g and excellent desalination performance with a salt removal efficiency of 98.5 % in 250 ppm of NaCl solution..
8. Hiroki Shimanoe, Takashi Mashio, Hideki Nakashima, Seunghyun Ko, Young-Pyo Jeon, Koji Nakabayashi, Jin Miyawakia, Seong-Ho Yoon, Correlation between molecular stacking and anisotropic texture in spinnable mesophase pitch, Carbon, 192, 15, 395-404, 10.1016/j.carbon.2022.02.062., 2022.06, The correlation of the anisotropic texture and (002) the molecular stacking property of spinnable mesophase pitch (SMP) was closely examined. SMP was found to be a specific solution consisting of mesogenic and solvent components, and the mesogenic component was composed of a cluster unit of (002) stacked molecular sheets. The anisotropic texture of SMP was strongly correlated with the height of (002) molecular stacking. When the concentration ratio of the mesogenic component to the solvent component was higher than the threshold concentration, the SMP always had 100 vol% anisotropic texture and a similar or larger number of stacked (002) sheets compared with its mesogenic component in both the solid and molten states. The solvent component, in both lamellar and hexagonal phases, assisted orientation of mesogenic molecules and rearrangement of mesogenic cluster units, thereby inducing a higher degree of graphitization than that of the solvent-free mesophase pitch. A schematic phase model of SMP was proposed based on a lyotropic liquid crystalline system and a hierarchical domain model..
9. Kaiser Ahmed Rocky, Md. Amirul Islam, Animesh Pal, Bidyut Baran Saha, Hyun-Sig Kil, Seong-Ho Yoon & Jin Miyawaki , Specific Heat Capacity of Carbon-Based Composites for Adsorption Heat Pump and Desalination Applications, Springer Water pp. 87-111, 10.1007/978-3-030-93845-1_4, 2022.06.
10. Hoi-Kyoeng Jung, Adel Al-Mutairi, Ik-Phyo Hong, Jung-Chul An, Min-Seok Jeon, Cho-I Park, Doo-Won Kim, Abdulazeem Marafie, Xiaoliang Ma, Taegon Kim, Seong-Ho Yoon, Joo-Il Park, Characteristics on catalytic removal of sulfur and nitrogen from atmospheric residues at the molecular level, Catalysis Today Volumes 388–389, 1 April 2022, Pages 259-268, 10.1016/j.cattod.2020.06.040, 38-389, 1, 259-268, 2022.04, The detailed investigation of heavy oil catalytic upgrading is important because heteroatom-containing compounds are detrimental to refining processes and the environment. Atmospheric residues (ARs) with different compositions were hydrotreated in two plug-flow reactors in series to study the reactivity of various species over the commercial catalysts at the molecular level. A 15-T Fourier-transform ion cyclotron resonance (FT-ICR) mass spectrometer equipped with atmospheric pressure photoionization (APPI) was applied to determine the molecular composition without chemical derivatization. Here, we examined the changes in bulk and molecular composition of two different ARs. The catalytic reactivity of the ARs was determined with respect to the relative abundance of the double bond equivalent (DBE) distribution dependent on carbon number for each class, such as hydrocarbon, sulfur, and nitrogen species. Reactivities and reaction routes of hydrocarbon, sulfur, and nitrogen species were discussed in detail at the molecular level..
11. Yi H., Nakabayashi K., Yoon S.-H., Miyawaki J. , Study on the applicability of pressurized physically activated carbon as an adsorbent in adsorption heat pumps, RSC Advances, 12, 5, 2558 - 2563, 10.1039/d1ra08395c., 2022.01.
12. Islam M.A., Pal A., Baran Saha B., Yoon S.-H., Miyawaki J., Thermophysical Characteristics of Novel Biomass-Derived Activated Carbon as a Function of Synthesis Parameters, Heat Transfer Engineering, 10.1080/01457632.2021.2001743, 1-14, 2021.11.
13. Lee S.H.,Lee S.M. Park S., Yoon S.-H., Han H., Jung D.-H., Preparation of isotropic carbon fibers from kerosene-purified coal tar pitch by co-carbonization with pyrolysis fuel oil, Materials Volume 14, Issue 21 November-1 2021 Article number 6280, 10.3390/ma14216280, 14, 21, November-1 2021 Article number 6280, 2021.11, An inexpensive and general-purpose carbon fiber was prepared using coal tar pitch. In contrast to the solvent extraction process employing expensive solvents, a low-cost centrifugal separation method facilitated the reduction of loss due to the pitch purification and an overall yield increase. The coal tar pitch purified by centrifugation and subsequently co-carbonized with pyrolysis fuel oil improved in spinnability. Moreover, the resulting spinnable pitch had a softening point of 250◦C. The obtained carbon fibers were heat-treated at 1000◦C for 5 min, resulting in a tensile strength of approximately 1000 MPa and an average diameter of 9 µm. In this study, we present an effective method for obtaining low-cost general-purpose isotropic carbon fibers. .
14. Ideta K., Kim D.-W., Kim T., Nakabayashi K., Miyawaki J., Park J.-I., Yoon S.-H., Effect of pore size in activated carbon on the response characteristic of electric double layer capacitor, Journal of Industrial and Engineering Chemistry Volume 102, Pages 321 - 326 25 October 2021, 10.1016/j.jiec.2021.07.014, 102, 321-326, 2021.10, The effect of pore size on the response characteristic of an electric double layer capacitor (EDLC) was closely examined. A series of phenol-resin-based activated carbon (AC) samples was prepared as average pore size from 0.94 to 1.68 nm by KOH activation by varying the activation temperature and KOH/carbonized phenol-resin ratio. The impedance properties of pouch-type EDLC cells prepared using AC samples were evaluated by applying an alternating current at 3 V between 10 mHz and 100 kHz for confirming the response characteristic. The cell based on the AC with a largest pore size (1.68 nm) showed fast response frequency, and had a high dielectric relaxation time constant as calculated from the response frequency value. The AC with the largest pore size, which consisted of both micropores (>1 nm) and mesopores (2–4 nm), was confirmed to facilitate extremely low electrolyte-diffusion resistance during the formation of the electric double layer, implying that the large pores lead to fast and stable response frequency. The presented findings suggest that AC with a largest pore size as the electrode leads to superior capacitance and response frequency characteristics in the alternating current than those of an AC with a smaller pore size. .
15. Kim T., Kim D.-W., Ideta K., Park C.-I., Miyawaki J., Park J.-I., Yoon S.-H., Pressurized physical activation: A simple production method for activated carbon with a highly developed pore structure, Carbon Volume 183, Pages 735 - 742 15 October 2021, 10.1016/j.carbon.2021.07.061, 183, 735-742, 2021.09, Activated carbon (AC) is produced by a physical or chemical activation process. Physical activation methods are commonly adopted in industry because of their low production costs, but the insufficiency of activating agent diffusibility into core parts of the particles and microdomains of carbon materials causes a lower activation yield and degree of pore development, compared with chemical activation methods. To increase the activating agent diffusibility and corresponding degree of pore development, we propose a novel pressurized physical activation method. Pressurization afforded remarkable increases in specific surface area and total pore volume of the prepared AC, compared with atmospheric pressure. Additionally, in AC prepared by this method, pore size distribution analysis revealed characteristic development of micropores of about 1.6 nm; such micropores did not appear in AC under conventional atmospheric physical activation. Furthermore, observations of particles and their microdomains showed that pressurization increased the activating agent diffusibility in carbon particles, but not at the microdomain level. This innovative pressurized physical activation can produce AC with highly developed pores (specific surface area >2600 m2/g) and a unique pore size distribution due to the improved activating agent diffusibility in carbon particles..
16. Kim T., Kim D.-W., Ideta K., Park C.-I., Miyawaki J., Park J.-I., Yoon S.-H., Structural pore elucidation of super-activated carbon based on the micro-domain structure model, Journal of Industrial and Engineering Chemistry Volume 101, Pages 186 - 194 25 September 2021, 10.1016/j.jiec.2021.06.013, 101, 186-194, 2021.09, For elucidation of the pore structure of super-activated carbon (SAC) based on the micro-domain structure model, a new experiment of inverse approach was designed by ball-mill treatment. The two representative SACs with an ultra-high specific surface area (∼3000 m2 g−1) used Maxsorb-III as a non-graphitizable carbon and M-30 as a graphitizable carbon, which are derived from petroleum coke and meso-phase carbon microbeads (MCMB), respectively. SACs consisting of micro-domains, are destroyed during ball milling due to the weak-interactions between the micro-domains. The formation mechanisms of their intra-particular pores (internal slit-like micropores in micro-domain) and inter-particular pores (channeled mesopores between microdomains) are successfully explained by the N2 adsorption/desorption isotherms, FE-SEM, HR-TEM, STEM, and electrochemical techniques. In addition, their capacitance behaviors using different electrolytes as a probe are clearly matched with the change of micro- and mesopores through the ball-mill treatment. This novel micro-domain structure model for porous carbon materials successfully accounts for critical limitations of the conventional hierarchical pore structure model..
17. Park C.-I., Oh K., Ma X., Cho E., Park Y.-D., Hong I., An J.-C., Kang Y.-J., Jo H.-K., Jang M.-H., Yoon S.-H., Jeon Y. , Molecular Behaviors on Asphaltenes during Atmospheric Residue Hydrodesulfurization, Energy and Fuels Volume 35, Issue 17, Pages 13644 - 136532 September 2021, 10.1021/acs.energyfuels.1c01201, 35, 17, 13644-136532, 2021.09, A two-stage hydrotreatment of the two atmospheric residues (LF-AR and KEC-AR) over the MoO3/γ-alumina catalyst at the first stage and the NiMo/γ-alumina catalyst at the second stage was performed. Evolution of various heteroatom classes in the asphaltenes during the hydrotreating process was examined, focusing on removing sulfur and nitrogen species from asphaltenes. Various heteroatom classes (CcHh,CcHh-Ss, CcHh-Nn,CcHh-Oo,CcHh-NnSs, CcHh-OoSs, CcHh-NnOo, andCcHh-NnOoSs) in the asphaltenes were analyzed by using Fourier transfer ion cyclotron mass spectrometry (FT-ICR MS) linked with atmospheric pressure photoionization (APPI). According to the changes of their relative abundance, double bond equivalent (DBE), and the carbon number in the hydrotreating process, behaviors of the various heteroatom classes in the asphaltenes during the hydrotreating process were interpreted. Two distinctive differences in heteroatom reduction were observed for two different AR samples, and qualitative evaluation was attempted for providing possible scenarios. © 2021 American Chemical Society.
18. Cui, Q., Ma, X., Nakano, K., Nakabayashi, K., Miyawaki, J., Al-Mutairi, A., Marafi, A.M.J., Al-Otaibi, A.M., Yoon, S.-H., Mochida, I., Effect of blending on hydrotreating reactivities of atmospheric residues: Synergistic effects, Fuel Volume 293, 1 June 2021, Article number 120429, DOI: 10.1016/j.fuel.2021.120429, 293, Article number 120429, 2021.06, In order to clarify the effect of blending heavy atmospheric residues (AR) and light AR on reactivities for hydrodesulfurization (HDS), hydrodenitrogenation (HDN), hydrodevanadium (HDV), hydrodenickel (HDNi), hydrodeasphaltenes (HDAsp) and hydrodeconradson-carbon-residue (HDCCR) in hydrotreating process, hydrotreating of the blends from two ARs at different ratios was conducted in a fixed-bed unit at 370 °C under a H2 pressure of 13.5 MPa over a set of commercial HDM and HDS catalysts. The compositions and properties of the two ARs and their blends as well as their hydrotreated products were analyzed and compared in detail. A positive synergistic effect of the blending was found for HDS, HDN and HDCCR, while a negative synergistic effect of the blending was observed for HDAsp, HDV and HDNi. A synergistic effect index (ηi,s) was proposed to describe quantitatively the extent of the blending synergistic effect. The observed synergistic effects can be attributed to change of the aromatics-to-saturates ratio in the blends. In addition, composition and property of the hydrotreated products from the blending feedstocks with different blending ratios were well estimated on the basis of the developed models with an average relative deviation less than 1.5 %..
19. Fengjing Jiang, Weineng Liao, Tsubasa Ayukawa, Seong-Ho Yoon, Koji Nakabayashi, Jin Miyawaki, Enhanced performance and durability of composite bipolar plate with surface modification of cactus-like carbon nanofibers, Journal of Power Sources, 482, 228903 (2021), DOI: 10.1016/j.jpowsour.2020.228903, 482, article No.: 228903, 2021.01, To sufficiently improve the electrical conductivity of composite bipolar plates is crucial for their application in fuel cells and redox flow batteries. Eliminating the resin-rich layer on the surface of composite bipolar plates turns to be an effective approach. In this work, graphite/resin composite bipolar plates with advanced performance and durability are obtained after surface treatment with cactus-like carbon nanofibers which grow from the catalyst cores and stretch out to form cactus-like structures. Morphology and structure of the carbon nanofibers, as well as the morphology, electrical conductivity, electrochemical properties and charge-discharge performance of the bipolar plates in a vanadium redox flow battery (VRFB) are investigated. Results show that surface treatment with graphitized cactus-like carbon nanofibers significantly enhance the conductivity of the composite plates which reaches as high as 198.7 S cm−1, and the area specific resistance can be reduced to 25.4 mΩ cm2. The VRFB single cell with the modified bipolar plate exhibits very high energy efficiency of 86.28%, at 100 mA cm−2, and shows excellent durability in charge-discharge cycling test. With the superior properties above, composite bipolar plates after surface treatment with cactus-like carbon nanofibers are promising candidates for VRFBs..
20. Keiko Ideta, Doo-Won Kim, Taegon Kim, Koji Nakabayashi, Jin Miyawaki, Joo-Il Park, and Seong-Ho Yoon , 19F ex situ solid-state NMR study on structural differences in pores of activated carbon series derived from chemical and physical activation processes for EDLCs, Journal of Physical Chemistry C, 24(23), 12457-12465 (2020), DOI: 10.1021/acs.jpcc.0c02106, 8, 12457-12465, 2020.06, This study demonstrates the differences in the capacitive behaviors between the pore structures generated by physical and chemical activation and infiltrated electrolyte ions in the pores. Three paired samples were successfully synthesized with similar specific surface areas and average pore widths through steam activation (physical) and KOH activation (chemical) processes. Their capacitive behaviors were investigated with their effective charge (β) values through 19F ex situ solid-state NMR and electrochemical methods. Despite their similar pore characteristics, their capacitive behaviors were totally different because of the differences in their surface structures such as the edge-rich for KOH activation and basal-rich for steam activation. The KOH-activated series displayed higher capacitances and β values than those of the steam-activated series due to the existence of an edge-rich surface structure, which induced more effective charging under electrochemical polarization. Additionally, the pore development model (domain theory) through the KOH and steamactivation approaches was discussed by using the β values and chemical shifts by using this 19F ex situ solid-state NMR technique. Copyright © 2020 American Chemical Society..
21. Shimanoe, H., Mashio, T., Nakabayashi, K., Inoue, T., Hamaguchi, M., Miyawaki, J., Mochida, I., Yoon, S.-H., Manufacturing spinnable mesophase pitch using direct coal extracted fraction and its derived mesophase pitch based carbon fiber, Carbon Volume 158, March 2020, Pages 922-929, 10.1016/j.carbon.2019.11.082, 8, 922-929, 2020.03, Spinnable mesophase pitch with high pitch yield of more than 50 wt% was successfully prepared using direct bitumen coal extracted fraction through the three-step process of hydrogenation, N2 blowing heat treatment, and thin-layer evaporation. The prepared mesophase pitch was smoothly spun to the fibrous form and could be converted into mesophase pitch-based carbonized and graphitized fibers through the usual oxidative stabilization, carbonization, and graphitization. The prepared mesophase pitch based carbon fibers showed typical random transversal structures with mechanical performances, tensile strengths of 1.83 GPa and 3.00 GPa, Young's moduli of 133 GPa and 450 GPa, and elongation properties of 1.37% and 0.68% after heat treatments at 1000 °C for 30 min and 2800 °C for 10 min, respectively. The relatively high-molecular-weight and well-developed polynuclear aromatic molecular structure of hypercoal is the likely reason for the high mesophase pitch yield. The meaning of each preparation processes, hydrogenation, N2 blowing heat treatment and thin layered evaporation, was discussed in detail. We anticipate that the success of high-yield mesophase pitch manufacturing using hypercoal as raw material will be an important key to innovatively reduce the production cost of mesophase pitch-based carbon fiber..
22. Nakabayashi, K., Matsuo, Y., Isomoto, K., Teshima, K., Ayukawa, T., Shimanoe, H., Mashio, T., Mochida, I., Miyawaki, J., Yoon, S.-H., Establishment of Innovative Carbon Nanofiber Synthesis Technology Utilizing Carbon Dioxide, ACS Sustainable Chemistry and Engineering Volume 8, Issue 9, 9 March 2020, Pages 3844-3852, 10.1021/acssuschemeng.9b07253, 8, 3844-3852, 2020.03, The 18th century industrial revolution dramatically changed people's lives and allowed for rapid growth of the global economy. However, since that time, the mass consumption of fossil fuels has resulted in the release of large amounts of carbon dioxide (CO2) into the atmosphere, creating a greenhouse effect and global warming. In turn, global warming poses a serious threat to the workings of society. Thus, the immobilization of emitted CO2 and the development of effective CO2 utilization technologies are currently being investigated toward the development of a sustainable society. This study proposes the manufacture of carbon nanofiber (CNF) materials using CO2 gas as a carbon source. It is expected that this technology will be valuable as a means of recapturing CO2. We report herein the effects of CO2 on CNF growth using CO2 and hydrocarbon gases on simple catalytic chemical vapor deposition (CCVD) catalysts, including Fe, Ni, and Co. Four factors were examined: The effectiveness of the catalyst, the reaction temperature, the CO2 concentration, and the specific hydrocarbons supplied in the feed gas. Use of these techniques will enable one to expect (1) future utilization of exhaust gas emitted from thermal power stations and factories as a carbon source and (2) the future possibility of directly converting CO2 to CNF by utilizing the heat given off by emission from factories and other thermal power-generating facilities as a heat source in CNF synthesis, as well as the future possibility of proposing an effective CO2 utilization system that will be revolutionary in its impact. .
23. Pal, A., Uddin, K., Saha, B.B., Thu, K., Kil, H.-S., Yoon, S.-H., Miyawaki, J., A benchmark for CO2 uptake onto newly synthesized biomass-derived activated carbons, Applied Energy Volume 264, 15 April 2020, Article number 114720, 10.1016/j.apenergy.2020.114720, 264, Article number 114720, 2020.04, To properly address the threat of global warming, there is an urgent need to reduce CO2 from the atmosphere through the development of environment-friendly technologies. Therefore, capturing/storage and utilization of CO2 as a refrigerant for adsorption cooling/heating technologies have been gaining momentum in the last decades. This study focuses on the development of novel activated carbons (ACs) with extremely large pore volume and high surface area from environment-friendly and abundantly available biomass precursor seeking higher CO2 adsorption capacity. Four AC samples are synthesized from the two biomass precursor's namely waste palm trunk (WPT) and mangrove (M) employing potassium hydroxide as an activating agent. The porous properties of the synthesized ACs are investigated from the N2 adsorption/desorption data. It is praiseworthy to elucidate that the highest surface area and pore volume for biomass-derived ACs (BACs) are obtained 2927 m2 g−1 and 2.87 cm3 g−1, respectively. CO2 adsorption characteristics are investigated using a high precision magnetic suspension balance unit at five different temperatures ranging from 25 to 70 °C with various pressures. The WPT-AC (C500)/CO2 pair shows the highest adsorption uptake as high as 1.791 g g−1 (excess adsorption) and 2.172 g g−1 (absolute adsorption) at 25 °C and 5.04 MPa, which is superior to any other ACs reported to date. To the best of our knowledge, porous properties and adsorption uptake of CO2 reported in this study are the up-to-date benchmarks. The results show that novel BACs/CO2 pairs possess remarkably high adsorption performance, which will contribute towards the advancement of various adsorption-based technologies..
24. Ryu, D.-Y., Nakabayashi, K., Shimohara, T., Morio, U., Mochida, I., Miyawaki, J., Jeon, Y., Park, J.-I., Yoon, S.-H., Behaviors of cellulose-based activated carbon fiber for acetaldehyde adsorption at low concentration, Applied Sciences (Switzerland) Volume 10, Issue 1, 1 January 2020, Article number 25, 10.3390/app10010025, 10, Article No.25, 2020.01, The toxic nature of acetaldehyde renders its removal from a wide range of materials highly desirable. Removal of low-concentration acetaldehyde (a group 1 carcinogenic volatile organic compound) using an adsorbent of cellulose-based activated carbon fiber modified by amine functional group (A@CACF-H) is proposed, using 2 ppm of acetaldehyde balanced with N2/O2 (79/21% v/v) observed under continuous flow, with a total flow rate of 100 mL/min over 50 mg of A@CACF-H. The effective removal of the targeted acetaldehyde is achieved by introducing the functionalized amine at optimized content. The removal mechanism of A@CACF-H is elucidated using two-dimensional gas chromatography coupled with time-of-flight mass spectrometry (2D-GC TOF-MS), indicating the efficacy of the proposed acetaldehyde removal method..
25. Xiongchao Lin, Jinchang Liu, Keiko Ideta, Jin Miyawaki, Yonggang Wang, Isao Mochida, Seongho Yoon, Cation induced microstructure and viscosity variation of molten synthetic slag analyzed by solid-state NMR, Fuel, 267, 1 May 2020, 117310 , 10.1016/j.fuel.2020.117310, 267, 117310, 2020.05.
26. Kui Shia, Jianxiao Yanga, Jun Li, Xiaxiang Zhang, Wei Wu, Hongbo Liua, Seong-Ho Yoon, Xuanke Li, Effect of oxygen-introduced pitch precursor on the properties and structureevolution of isotropic pitch-basedfibers during carbonization andgraphitization, Fuel Processing Technology, 199, 106291 March (2020). https://doi.org/10.1016/j.fuproc.2019.106291, https://doi.org/10.1016/j.fuproc.2019.106291, 199, 106291, 2020.02.
27. Jinchang Liu, Hiroki Shimanoe, Seunghyun Ko, Hansong Lee3, Caehyun Jo3, Jaewoong Lee, Seong-Hwa Hong, Hyunchul Lee, Young-Pyo Jeon, Koji Nakabayashi, Jin Miyawaki, Seong-Ho Yoon, Highly chlorinated polyvinyl chloride as a novel precursor for fibrous carbon material , Polymers 2020, 12(2), 328; https://doi.org/10.3390/polym12020328, https://doi.org/10.3390/polym12020328, 12, 2, 328, 2020.01.
28. ,Shimanoe, H., Ko, S., Jeon, YP, Nakabayashi, K., Miyawaki, J., Yoon, S-.H., Shortening Stabilization Time Using Pressurized Air Flow in Manufacturing Mesophase Pitch-Based Carbon Fiber, POLYMERS, 11-12, Article No. 1911, DOI: 10.3390/polym11121911, 11, 12, Article No. 1911, 2020.01.
29. Lee, S.H., Lee, S.M., Im, U.-S., Kim, S.-D., Yoon, S.-H., Lee, B.-R., Peck, D.-H., Shul, Y.-G., Jung, D.-H., Preparation and characterization of high-spinnability isotropic pitch from 1-methylnaphthalene-extracted low-rank coal by co-carbonization with petroleum residue Carbon, Carbon, 155, 186-194 (2019). , 155, 186-194, 2019.10.
30. Cui, Q., Ma, X., Nakabayashi, K., Miyawaki, J., Al-Mutairi, A., Marafi, A.M.J., Al-Otaibi, A.M., Yoon, S.-H., Mochida, I., Interaction of Vanadyl Complexes in Atmospheric Residue with Their Matrixes: An ESR Study in a Temperature Range up to 170 °C, Journal of Physical Chemistry C, 123, 20587-20593 (2019). , 123, 20587-20593, 2019.10.
31. Ko, S., Choi, J.-E., Yim, H., Miyawaki, J., Yoon, S.-H, Jeon, Y.-P., Improved understanding of the molecular structure of pyrolysis fuel oil: towards its utilization as a raw material for mesophase pitch synthesis, Carbon Letters, 29, 307-317 (2019). , 29, 307-317, 2019.10.
32. Dae Eon Jung, Dabin Chung, Seong Ho Yoon, Byoung Chul Kim , The Preparation and Properties of Isotropic Pitch-Based Carbon Felt Prepared by Solvent-Supported Dual Concentric Electrospinning, Macromolecular Research , 27, 10, 1024-1027, 2019.10.
33. Nakabayashi, K., Yi, H., Ryu, D.-Y., Chung, D., Miyawaki, J., Yoon, S.-H., Enhancement of first cycle coulombic efficiency of hard carbon derived from Eucalyptus in a sodium ion battery, Chemistry Letters, 48, 753-755 (2019). , 48, 753-755, 2019.07.
34. Jeon, M.-S., Lee, Y., Jung, H.-K., Kim, H.-J., Yoon, S.-H., Kim, T., Park, J.-I., The chemical aspects on hydrotreating catalysis for residue, Korean Chemical Engineering Research, 57, 455-460 (2019)., 57, 455-460, 2019.06.
35. Lee, C., Na, H., Jeon, Y., Jung Hwang, H., Kim, H.-J., Mochida, I., Yoon, S.-H., Park, J.-I., Shul, Y.-G., Poly(ether imide) nanofibrous web composite membrane with SiO2 /heteropolyacid ionomer for durable and high-temperature polymer electrolyte membrane (PEM) fuel cells, Journal of Industrial and Engineering Chemistry, 74, 25 7-13, June (2019)., 74, 25, 7-13, 2019.06.
36. Liu, J., Shimanoe, H., Choi, J.-E., Ko, S., Jeon, Y.-P., Nakabayashi, K., Miyawaki, J., Yoon, S.-H, Effect of the pre-treated pyrolysis fuel oil: Coal tar pitch ratio on the spinnability and oxidation properties of isotropic pitch precursors and the mechanical properties of derived carbon fibers, Carbon Letters, 29, 2, 193-202, April (2019)., 29, 2, 193-202, 2019.04.
37. Özsin, G., Pütün, A.E., Nakabayashi, K., Miyawaki, J., Yoon, S.-H., Environmental-friendly production of carbon fiber from isotropic hybrid pitches synthesized from waste biomass and polystyrene with ethylene bottom oil, Journal of Cleaner Production, 239, 1 Article number 118025 December (2019). , https://doi.org/10.1016/j.jclepro.2019.118025, 239, Article number 118025, 2019.12.
38. Dong-YeonRyu, Takaaki Shimohara, Koji Nakabayashi, Jin Miyawaki, Joo-Il Park, Seong-HoYoon, Urea/nitric acid co-impregnated pitch-based activated carbon fiber for the effective removal of formaldehyde, Journal of Industrial and Engineering Chemistry, 80, 25 98-105 December (2019). , https://doi.org/10.1016/j.jiec.2019.07.036, 80, 25, 98-105, 2019.12.
39. Kui Shia, Jianxiao Yanga, Jun Li, Xiaxiang Zhang, Wei Wu, Hongbo Liua, Seong-Ho Yoon, Xuanke Li, Effect of oxygen-introduced pitch precursor on the properties and structureevolution of isotropic pitch-basedfibers during carbonization andgraphitization, Fuel Processing Technology, 199, 106291 March (2020). , https://doi.org/10.1016/j.fuproc.2019.106291, 199, 106291, 2019.03.
40. Kim, T., Naoki, W., Miyawaki, J., Park, J.-I., Lee, C., Jung, H.-K., Jeon, M.-S., Kim, H.-J., Yoon, S.-H., Synthesis of surface-replicated ultra-thin silica hollow nanofibers using structurally different carbon nanofibers as templates, Journal of Solid State Chemistry, 272, 21-26, April (2019), 272, 21-26, 2019.04.
41. Yao Yu, Hyun-Sig Kil, Koji Nakabayashi, Seong-Ho Yoon, Jin Miyawaki, Toward development of activated carbons with enhanced effective adsorption amount by control of activation process, Journal of the Japan Petroleum Institute, 2097, 020002, 2019.04.
42. Sano, Y., Karasawa, T., Inomata, M., Mochida, I., Miyawaki, J., Yoon, S.-H, Ultra-deep desulfurization process of diesel fuel with adsorption treatment, Journal of the Japan Petroleum Institute, 62, 2, 61-66, 2019.02.
43. Kim, J., Yi, Y., Peck, D.-H., Yoon, S.-H., Jung, D.-H., Park, H.S., Controlling hierarchical porous structures of rice-husk-derived carbons for improved capacitive deionization performance, Environmental Science: Nano, 6, 3, 916-924, 2019.01.
44. Liu, J., Shimanoe, H., Nakabayashi, K., Miyawaki, J., Choi, J.-E., Jeon, Y.-P., Yoon, S.-H., Enhancing the oxidative stabilization of isotropic pitch precursors prepared through the co-carbonization of ethylene bottom oil and polyvinyl chloride, Journal of Industrial and Engineering Chemistry, 67, 25, 358-364, 2018.11.
45. Liu, J., Shimanoe, H., Nakabayashi, K., Miyawaki, J., Choi, J.-E., Jeon, Y.-P., Yoon, S.-H., Preparation of isotropic pitch precursor for pitch-based carbon fiber through the co-carbonization of ethylene bottom oil and polyvinyl chloride, Journal of Industrial and Engineering Chemistry, 67, 25, 267-283, 2018.11, For the first time, polyvinyl chloride (PVC) was used as an easily-handled chlorine source for preparation of isotropic pitch-based carbon fiber (IPCF) incorporating ethylene bottom oil (EO) as a raw material. Pitch precursors were prepared by the chlorination–dehydrochlorination triggered by chlorine radicals originated from PVC; aromatization and poly-condensation reactions occurred by polyene-type radicals from PVC. Radical production and co-carbonization were facilitated by pretreatments of EO through vacuum distillation, bromination, and additional heat treatment. Pitches were prepared by the cocarbonization of pretreated EO and EO containing 20 wt% PVC, and had higher yields and better spinnability than those by simple distillation..
46. Seongho YOON, Fast Water Relaxation through One-Dimensional Channels by Rapid Energy Transfer, Ohba, T., Ideta, K., Hata, K., Yoon, S.-H., Miyawaki, J., Hata, K., ChemPhysChem, in press (2016)., ChemPhysChem, in press (2016)., in press (2016)., 2016.11.
47. Seongho YOON, Evaluation of the thermal and rheological characteristics of minerals in coal using SiO2-Al2O3-CaO-FeOx quaternary system, Wang, C.-H., Lin, X.-C., Yang, S.-S., Liu, S.-Q., Yoon, S., Wang, Y.-G. Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology. 44 (9), 1025-1033, September (2016). , Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology. 44 (9), 1025-1033, September (2016). , 44 (9), 1025-1033, September (2016). , 2016.09.
48. Seongho YOON, An asymmetrical activated carbon electrode configuration for increased pore utilization in a membrane-assisted capacitive deionization system, Kim, J., Peck, D.-H., Lee, B., Yoon, S.-H., Jung, D.-H. Xinxing Tan Cailiao/New Carbon Materials, 31(4), 378-385 (2016)., Xinxing Tan Cailiao/New Carbon Materials, 31(4), 378-385 (2016)., 31(4), 378-385 (2016)., 2016.04.
49. Seongho YOON, Synthesis and Characteristics of Silica-Coated Carbon Nanofibers on Electroplated Co–Ni/C-Fiber Textiles, Kun-Ho Jang, Sang-Hoon Lee, Yujin Han, Seong-Ho Yoon, and Chang-Seop Lee, Journal of Nanoscience and Nanotechnology, 16, 10767–10771 (2016)., Journal of Nanoscience and Nanotechnology, 16, 10767–10771 (2016)., 16, 10767–10771 (2016)., 2016.04.
50. Seongho YOON, Effect of heat pre-treatment conditions on the electrochemical properties of mangrove wood-derived hard carbon as an effective anode material for lithium-ion batteries, Yu-Jin Han, Dabin Chung, Koji Nakabayashi, Jin-Do Chung, Jin Miyawaki, Seong-Ho Yoon, Electrochimica Acta, 213, 20, 432–438 September (2016)., Electrochimica Acta, 213, 20, 432–438 September (2016)., 213, 20, 432-438, 2016.02.
51. Seongho YOON, Preparation of pitch based carbon fibers using Hyper-coal as a raw material, Jianxiao Yanga, 1, Koji Nakabayashi, Jin Miyawaki, Seong-Ho Yoon, Carbon, 106, 28–36, September (2016)., Carbon, 106, 28–36, September (2016)., 106, 28-36, 2016.03.
52. Seongho YOON, C4F8 plasma treatment of as an effective route for improving rate performance of natural/synthetic graphite anodes in lithium ion batteries, Choonghyeon Lee, Yu-Jin Han, Young Deok Seo, Koji Nakabayashi, Jin Miyawaki, Ricardo Santamaría, Rosa Menéndez, Seong-Ho Yoon, and Jyongsik Jang, Carbon, 103, 28-35 (2016), Carbon, 103, 28-35 (2016), 103, 28-35, 2016.03.
53. Seongho YOON, Control of Nitrogen Content and its Effects on the Electrochemical Behavior of Nitrogen-doped Carbon Nanofibers, Jiyoung Kim, Jin-Sung Jang, Dong-Hyun Peck, Byungrok Lee, Seong-Ho Yoon, Doo-Hwan Jung, Journal of Electroanalytical Chemistry,768, 34-40 (2016)., Journal of Electroanalytical Chemistry,768, 34-40 (2016), 768, 34-40, 2016.03.
54. Seongho YOON, Enhancing the tensile strength of isotropic pitch-based carbon fibers by improving the stabilization and carbonization properties of precursor pitch, Byung-Jun Kim, Toru Kotegawa, Youngho Eom, Jungchul An, Ik-Pyo Hong, Osamu Kato, Koji Nakabayashi, Jin Miyawaki, Byoung Chul Kim, Isao Mochida, Seong-Ho Yoon, Carbon, 99, 649–657, April (2016). , Carbon, 99, 649–657, April (2016), 99, 649-657, 2016.03.
55. Seongho YOON, Fabrication of monolithic carbon nanofiber/carbon composites, Ge, X., Chen, M., Wang, J., Long, D., Ling, L., Qiao, W., Mochida, I., Yoon, S.-H., RSC Advances, 6, 6443-6450 (2016). , RSC Advances, 6, 6443-6450 (2016). , 6, 6443-6450, 2016.03.
56. Seongho YOON, Preparation of isotropic pitch-based carbon fiber using hyper coal through co-carbonation with ethylene bottom oil, Yang, J., Nakabayashi, K., Miyawaki, J., Yoon, S.-H., Journal of Industrial and Engineering Chemistry, 34, 397-404, February (2016)., Journal of Industrial and Engineering Chemistry, 34, 397-404, February (2016)., 34, 397-404, 2016.02.
57. Seongho YOON, Enhancement of the rate performance of plasma-treated platelet carbon nanofiber anodes in lithium-ion batteries, RSC Advances, 6, 4810-4817 (2016) DOI:10.1039/C5RA20650B., 6, 4810-4817 , 2016.01.
58. Seongho YOON, The characterization of metal complexes in typical Kuwait atmospheric residues using both GPC coupled with ICP-MS and HT GC-AED, Journal of Industrial and Engineering Chemistry, 34, 25 204-212 February (2016)., 34, 25, 204-212, 2015.01.
59. Seongho YOON, Synthesis and characterization of high-softening-point methylene bridged pitches by visible light irradiation assisted free-radical bromination, Carbon, 95, 780-788 (2015)., 95, 780-788, 2015.01.
60. Seongho YOON, Coating of graphite anode with coal tar pitch as an effective precursor for enhancing the rate performance in Li-ion batteries: Effects of composition and softening points of coal tar pitch, Carbon, 94, 432–438 November (2015)., 94, 432-438, 2015.12.
61. Seongho YOON, Analysis of the transformation behaviors of a Chinese coal ash using in-/ex-situ XRD and SEM-EXD, Asia-Pacific Journal of Chemical Engineering, 10, 105-111 (2015), 10, 105-111, 2015.11.
62. Seongho YOON, Adsorption of ethanol onto phenol resin based adsorbents for developing next generation cooling systems, International Journal of Heat and Mass Transfer, 81, 171–178 (2015)., 81, 171-178, 2015.10.
63. Seongho YOON, The thermotropic liquid crystalline behavior of mesophase pitches with different chemical structures, Carbon, 81, 694-701 (2015), 81, 694-701, 2015.10.
64. Seongho YOON, Lin X., Min-Hyun Seo, Insights into the functional group transformation of a chinese brown coal during slow pyrolysis by combining various experiments, Fuel, 118, 257-264, 2014.05.
65. Seongho YOON, Kim Taegon, Min-Hyun Seo, Fe nanoparticle entrained in tubular carbon nanofiber as an effective electrode material for metal–air batteries: a fundamental reason, Carbon, 80, 698-707, 2014.12.
66. Seongho YOON, Yuzo Ohata, Min-Hyun Seo, TiO2-entrained tubular carbon nanofiber and its electrochemical properties in the rechargeable Na-ion battery system, Applied Thermal Engineering, 72, 2, 309-314, 2014.10.
67. Seongho YOON, Jiang Yong, Lin X., Microstructural transformations of two representative slags at high temperatures and effects on the viscosity, Journal of Industrial and Engineering Chemistry, 20, 1338-1345, 2014.07.
68. Seongho YOON, Byung Jun Kim, Min-Hyun Seo, Preparation of carbon fibers with excellent mechanical properties from isotropic pitches, Carbon, 77, 747-755, 2014.06.
69. 持田 勲, Okuma Osamu, Seongho YOON, Chemicals from coal liquefaction, Chemical Reviews, 114, 3, 1637-1672, 2014.03.
70. Tae-Gon Kim, Park, J.-I, Seongho YOON, Hydrotreatment of two atmospheric residues from Kuwait Export and Lower Fars crude oils, Fuel, 117, 191-197, 2014.02.
71. Motoyama. Y, Taguchi, M, Seongho YOON, Chemoselective Hydrogenation of Functionalized Nitroarenes and Imines by Using Carbon Nanofiber-Supported Iridium Nanoparticles, Chemistry - An Asian Journal, 9, 1, 71-74, 2014.02.
72. Lee, K.J., Shiratori Nanako, Seongho YOON, Toward an effective adsorbent for polar pollutants: Formaldehyde adsorption by activated carbon, Journal of Hazardous Materials, 260, 82-88, 2013.08.
73. Tae gon Kim, Park, J.-I, Seongho YOON, Identification and quantification of (alkyl)benzenes in hydrocracked products of light cycle oil by GC-AED, Fuel, 111, 883-886, 2013.10.
74. Kim, Y.-K, Park, J.-I, Seongho YOON, Low-temperature catalytic conversion of lignite: 3. Tar reforming using the supported potassium carbonate, Journal of Industrial and Engineering Chemistry, 20, 1, 9-12, 2013.10.
75. Kim, Y.-K, Park, J.-I, Seongho YOON, Low-temperature catalytic conversion of lignite: 2. Recovery and reuse of potassium carbonate supported on perovskite oxide in steam gasification, Journal of Industrial and Engineering Chemistry, 20, 1, 194-201, 2013.10.
76. Kim, Y.-K, Park, J.-I, Seongho YOON, Low-temperature catalytic conversion of lignite: 1. Steam gasification using potassium carbonate supported on perovskite oxide, Journal of Industrial and Engineering Chemistry, 20, 1, 216-221, 2013.10.
77. Azizi, N, Kim, Y.-K, Seongho YOON, Catalytic steam gasification of waste palm tree trunk derived Bio-Char, Applied Mechanics and Materials,, 315, 252-259, 2013.05.
78. Tae-gon Kim, Juil Park, Seongho YOON, Analysis and deep hydrodesulfurization reactivity of Saudi Arabian gas oils, Journal of Industrial and Engineering Chemistry,, 19, 5, 1577-1582, 2013.11.
79. Hyun-Seok Kim, Yusuke Nishiyama, Keiko Ideta, Seongho YOON, Analysis of water in Loy Yang brown coal using solid-state 1H NMR, Journal of Industrial and Engineering Chemistry,, 19, 5, 1673-1679, 2013.11.
80. Tae-Hwan Park, Jae-Seong Yeo, Yuzo Ohata, Seongho YOON, Rate Performance Enhancement of Anode for Lithium-Ion Battery via Composition of Hard Carbon And Silicon-Carbon Nanofiber, International Journal of Electrochemical Science, 8, 249-256, 2013.04.
81. Azizi, N, Kim, Y.-K, Seongho YOON, Low temperature catalytic steam gasification of waste palm trunk by potassium carbonate supported on  perovskite oxide, Advanced Materials Research, 626, 551-558 (2013), 2013.04.
82. Jae-Seong Yeo, Tae-Hwan Park, Min-Hyun Seo, Seongho YOON, Enhancement of the Rate Capability of Graphite via the Introduction of Boron–oxygen Functional Groups, International Journal of Electrochemical Science, 8, 1308-1315 , 2013.04.
83. Byung Jun Kim, Hyunsig Kil, Naoki Watanabe, Seongho YOON, Preparation of Novel Isotropic Pitch with High Softening Point and Solvent Solubility for Pitch-based Electrospun Nanofiber, Current Organic Chemistry, 17 , 1463-1468, 2013.03.
84. Seongho YOON, Enhancing the rate performance of graphite anodes through addition of natural graphite/carbon nanofibers in lithium-ion batteries, Journal of Electrochimica Acta, 93, 236-240, 2013.03.
85. Seongho YOON, Fluidized bed drying of Loy Yang brown coal with variation of temperature, relative humidity, fluidization velocity and formulation of its drying rate, Fuel , 105, 415-424, 2013.02.
86. Seongho YOON, Modification performance of Hypercoal as an additive on co-carbonization of coal, Journal of Fuel Chemistry and Technology, 40, 1025-1032, 2012.12.
87. Seongho YOON, Hydrotreating of light cycle oil over NiMo and CoMo catalysts with different supports, Fuel Processing Technology, 109, 172-178, 2013.02.
88. Seongho YOON, Mild hydrocracking of 1-methyl naphthalene (1-MN) over alumina modified zeolite, Journal of Industrial and Engineering Chemistry, 19, 2, 627-632, 2013.01.
89. Seongho YOON, Pt Nanoparticle-Reduced Graphene Oxide Nanohybrid for Proton Exchange Membrane Fuel Cells, JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 12, 5669-5672, 2012.07.
90. Seongho YOON, Jin Miyawaki, Synthesis of silicon monoxide-pyrolytic carbon-carbon nanofiber composites and their hybridization with natural graphite as a means of improving the anodic performance of lithium-ion batteries, Nanotechnology, 23, 2012.12.
91. Seongho YOON, Jin Miyawaki, Solid electrolyte interphase formation behavior on well-defined carbon surfaces for Li-ion battery systems, Electrochimica Acta, 77, 111-120, 2012.10.
92. Seongho YOON, Jin Miyawaki, Structure and electrochemical applications of boron-doped graphitized carbon nanofibers, Nanotechnology, 23, 10-4404, 2012.08.
93. Seongho YOON, Jin Miyawaki, In-situ Preparation and Electrochemical Performance of an Urchin-like Carbon Nanofibers@LiFePO4 Hybrid, INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 7, 4397-4404, 2012.05.
94. Seongho YOON, Jin Miyawaki, Lee Gangho, High magnetic field solid-state NMR analyses by combining MAS, MQ-MAS, homo-nuclear and hetero-nuclear correlation experiments, MAGNETIC RESONANCE IN CHEMISTRY, 50, 289-294, 2012.10.
95. Seongho YOON, Jin Miyawaki, Lee Gangho, Development of carbon-supported hybrid catalyst for clean removal of formaldehyde indoors, CATALYSIS TODAY, 185, 278-283, 2012.07.
96. Seongho YOON, Correlation between fluidity properties and local structures of three typical Asian coal ashes, Energy and Fuels, 26, 2136-2144 (2012)., 26, 2136-2144, 2012.04.
97. X. Lin, J. Miyawaki, I.Mochida, and S-H Yoon, A Study on the Correlation of Structure and Fluidity of Three Asian Coal Ashes and Slags, , Journal of Novel Carbon Resources, 5, 5-9 (2011). , 5, 5-9, 2012.01.
98. Y-K Kim, J. Miyawaki, I.Mochida, and S-H Yoon, Tar reforming of Lignite at Low Temperatures Using Supported Potassium Carbonate, Journal of Novel Carbon Resources, 5, 1-4 (2011)., 5, 1-4, 2012.01.
99. Young-Kwang Kima, Li-fang Hao, Joo-Il Park, Jin Miyawaki, Isao Mochida, Seong-Ho Yoon, Catalytic activity and activation mechanism of potassium carbonate supported on perovskite oxide for coal char combustion, Fuel, 94, 516-522 (2012), 94, 516-522, 2012.01.
100. Nam, K. , Lim, S., Kim, S.-K., Yoon, S.-H. , Jung, D.-H., Application of silica as a catalyst support at high concentrations of methanol for direct methanol fuel cells, International Journal of Hydrogen Energy, 37, 4619-4626 (2012). , 37, 4619-4626, 2012.02.
101. Li, W. , Long, D. , Miyawaki, J. , Qiao, W. , Ling, L , Mochida, I., Yoon, S.-H, Structural features of polyacrylonitrile-based carbon fibers, Journal of Materials Science, 47, 919-928 , (2012), 47, 5, 919-928, 2012.02.
102. Motoyama, Y. , Lee, Y. , Tsuji, K. , Yoon, S.-H. , Mochida, I. , Nagashima, H., Platinum Nanoparticles Supported on Nitrogen-doped Carbon Nanofibers as Efficient Poisoning Catalysts for the Hydrogenation of Nitroarenes, ChemCatChem 3, 1578-1581 October (2011), 3, 5, 1578-1581, 2011.10.
103. Lee, Y., Motoyama, Y., Tsuji, K., Yoon, S.-H., Mochida, I., Nagashima, H., , (Z)-Selective Partial Hydrogenation of Internal Alkynes by Using Palladium Nanoparticles Supported on Nitrogen-Doped Carbon Nanofiber , ChemCatChem 4 (6) , pp. 778-781 (2012), 4, 5, 778-781, 2012.03.
104. Lin, Xiongchao; Ideta, Keiko; Miyawaki, Jin; Nishiyama, Yusuke; Mochida, Isao; Yoon, Seong-Ho, High magnetic field solid-state NMR analyses by combining MAS, MQ-MAS, homo-nuclear and hetero-nuclear correlation experiments, MAGNETIC RESONANCE IN CHEMISTRY, 50, 289-294, (2012), 50, 289-294, 2012.03.
105. Lin, X., Ideta, K., Miyawaki, J., Takebe, H., Yoon, S.-H., Mochida, I., Correlation between fluidity properties and local structures of three typical Asian coal ashes , Energy and Fuels 26 (4) , pp. 2136-2144 (2012), 185, , 2136-2144, 2012.03.
106. Jin Miyawaki, Gang-Ho Lee, Joonyoung Yeh, Nanako Shiratori, Takaaki Shimohara, Isao Mochida, Seong-Ho Yoon, Development of carbon-supported hybrid catalyst for clean removal of formaldehyde indoors, Catalysis Today, 185, , 278-283, 2012.10.
107. Miyawaki, J., Shimohara, T., Shirahama, N., Yasutake, A., Yoshikawa, M., Mochida, I. , Yoon, S.-H, Removal of NOx from air through cooperation of the TiO2 photocatalyst and urea on activated carbon fiber at room temperature, Applied Catalysis B (Environmental), in press, 2011.10.
108. Long, D., Li, W., Miyawaki, J, Qiao, W., Ling, L., Mochida, I., Yoon, S.-H, Meso-channel development in graphitic carbon nanofibers with various structures, Chemistry of Materials, 23, 4141-4148, 2011.09.
109. Li, W. , Long, D. , Miyawaki, J. , Qiao, W. , Ling, L , Mochida, I., Yoon, S.-H, Structural features of polyacrylonitrile-based carbon fibers, Journal of Materials Science, in press, 2011.10.
110. Long, D. , Li, W. , Qiao, W., Miyawaki, J. , Yoon, S.-H. , Mochida, I. , Ling, L., Graphitization behaviour of chemically derived graphene sheets, Nanoscale, 3, 3652-3656, 2011.09.
111. Kim Jiyoung; Lim Seongyop; Kim Sang-Kyung; Seong-Ho Yoon, Doohwan Jung, Electrochemical Catalytic Activity for Oxygen Reduction Reaction of Nitrogen-Doped Carbon Nanofibers, JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 11, 6350-6358, 2011.07.
112. Donghui Long, Wei Li, Wenming Qiao, Jin Miyawaki, Seong-Ho Yoon, Isao Mochida, and Licheng Ling, Partially unzipped carbon nanotubes as a superior catalyst support for PEM fuel cells, Chem. Commun, 47, 9429-9431, 2011.10.
113. Park, Joo-Il, Lee, Jihn-Koo, Miyawaki, Jin, Yoon, Seong-Ho, Mochida, Isao, Catalytic oxidation of polycyclic aromatic hydrocarbons (PAHs) over SBA-15 supported metal catalysts, JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 17, 271-276, 2011 May, 2011.05.
114. Zhi Wang, Yanli Wang, Donghui Long, Isao Mochida, Wenming Qiao,Liang Zhan, Xiaojun Liu,Seong-Ho Yoon, and Licheng Ling, Kinetics and Mechanism Study of Low-Temperature Selective Catalytic Reduction of NO with Urea Supported on Pitch-Based Spherical Activated Carbon, Industrial & Engineering Chemistry Research, April 08, 2011, 2011.04.
115. Lv, Ruitao, Cui, Tongxiang, Jun, Mun-Suk, Zhang, Qiang, Cao, Anyuan, Su, Dang Sheng, Zhang, Zhengjun, Yoon, Seong-Ho, Miyawaki, Jin, Mochida, Isao, Kang, Feiyu, Open-Ended, N-Doped Carbon Nanotube-Graphene Hybrid Nanostructures as high-Performance Catalyst Support, ADVANCED FUNCTIONAL MATERIALS, 21, 999-1006, 2011.03.
116. Joo-Il Park, Jihn-Koo Lee, Jin Miyawaki, Seong-Ho Yoon, Isao Mochida , Characteristics on HDS over amorphous silica-alumina in single and dual catalytic bed system for gas oil, Catalysis Today, In Press, 2011.01.
117. Nakano, K., Pang, W., Lee, J.-K., Park, J.-I., Yoon, S.-H., Mochida, I. , Activity of alumina-silica-supported NiMoS prepared by controlled mixing of alumina into SiO2 hydrogels for HDS of gas oil
, Fuel Processing Technology, in press, 2011.01.
118. Chang-Min Yoon, Donghui Long, Sang-Min Jang, Wenming Qiao, Licheng Ling, Jin Miyawaki, Choong-Kyun Rhee, Isao Mochida, Seong-Ho Yoon, Electrochemical surface oxidation of carbon nanofibers
, Carbon, 49, 96-105, 2011.01.
119. Yoon, Seong-Ho; Long, Donghui; Li, Wei; Ling, Licheng; Miyawaki, Jin; Mochida, Isao, Preparation of nitrogen-doped graphene sheets by a combined chemical and hydrothermal reduction of graphene oxide, Langmuir, in press (2010)., 2010.12.
120. Donghui Long, Bai An, Kiyoshi Yokogawa, Licheng Ling, Jin Miyawaki, Isao Mochida, Seong-Ho Yoon, Structural Units and Their Periodicity in Carbon Nanotubes, Small, 6, 2526-2529, 2010.11.
121. Weiwei Pang, Jihn-Koo Lee, Seong-Ho Yoon, Isao Mochida, Takashi Ida, Masaru Ushio, Compositional analysis of deasphalted oils from Arabian crude and their hydrocracked products, Fuel Processing Technology, 91, Pages 1517-1524 (2010)., 2010.10.
122. Joo-Il Park, Jihn-Koo Lee, Jin Miyawaki, Young-Kwang Kim, Seong-Ho Yoon, Isao Mochida , Hydro-conversion of 1-methyl naphthalene into (alkyl)benzenes over alumina-coated USY zeolite-supported NiMoS catalysts, Fuel, In Press, Corrected Proof, Available online 20 September 2010
, 2010.12.
123. Kyung Jin Lee, Nanako Shiratori, Gang Ho Lee, Jin Miyawaki, Isao Mochida, Seong-Ho Yoon, Jyongsik Jang , Activated carbon nanofiber produced from electrospun polyacrylonitrile nanofiber as a highly efficient formaldehyde adsorbent , Carbon, Volume 48, Issue 15, December 2010, Pages 4248-4255
, 2010.12.
124. Joo-Il Park, Jihn-Koo Lee, Jin Miyawaki, Wei-Wei Pang, Seong-Ho Yoon, Isao Mochida, Platinum catalysts supported on hydrothermally stable mesoporous aluminosilicate for the catalytic oxidation of polycyclic aromatic hydrocarbons (PAHs), Catalysis Communications, 11, 1068-1071 (2010)., 2010.06.
125. Xinlu Li, Seong-Ho Yoon, Kun Du, Yuxin Zhang, Jiamu Huang and Feiyu Kang, An urchin-like graphite-based anode material for lithium ion batteries, ELECTROCHIMICA ACTA, 55, 5519-5522 (2010) ., 2010.05.
126. Liu, Tao, Luo, Ruiying, Qiao, Wenming, Yoon, Seong-Ho, Mochida, Isao, Microstructure of carbon derived from mangrove charcoal and its application in Li-ion batteries, ELECTROCHIMICA ACTA, 55, 1696-1700 (2010). , 2010.04.
127. Liu T, Luo RY, Yoon SH, Mochida I, Anode performance of boron-doped graphites prepared from shot and sponge cokes , JOURNAL OF POWER SOURCES, 195, 6, 1714-1719, 2010.03.
128. Liu T, Luo RY, Yoon SH, Mochida I, Effect of vacuum carbonization treatment on the irreversible capacity of hard carbon prepared from biomass material, Materials letters, 64, 1, 74-76, 2010.01.
129. Sang-Min Jang, Jin Miyawaki, Masaharu Tsuji,Isao Mochida, Seong-Ho Yoon, The Preparation of a Novel Si-CNF Composite as an Effective Anodic Material for Lithium-ion Batteries, Carbon, 47, 15, 3383-3391, 2009.12.
130. Sang-Min Jang, Jin Miyawaki, Masaharu Tsuji,Isao Mochida, Seong-Ho Yoon, Fei-Yu Kang, Preparation of CNF-NG Composite and its Electrochemical Properties as an Anode Material of Li-ion Battery, New Carbon Materials, 2009.12.
131. Pang, W. W., Zhang, Y. Z.,Choi, K-H, Lee, J. K., Yoon, S. H.,Mochida, I., Nakano, K., Design of Catalyst Support for Deep Hydrodesulfurization of Gas Oil, PETROLEUM SCIENCE AND TECHNOLOGY, 27, 12, 1349-1359, 2009.09.
132. N. Shiratori, K. Lee, J. Miyawaki, S. Hong,I. Mochida, B. An, K. Yokogawa, J. Jang, S. Yoon, Pore Structure Analysis of Activated Carbon Fiber by Microdomain-Based Model, Langmuir, 25, 13, 7631-7637, 2009.07.
133. S. Lim, S. Yoon, I. Mochida, D. Jung , Direct Synthesis and Structural Analysis of Nitrogen-Doped Carbon Nanofibers, Langmuir , 25, 14, 8268-8273, 2009.03.
134. W. M. Qiao, Y. Song, S. H. Hong, S. Y. Lim, S.-H. Yoon, Y. Korai, and I. Mochida, Development of Mesophase Pitch Derived Mesoporous Carbons through a Commercially
Nanosized Template, Langmuir, 22(8), 3791-3797, 2006.04.
135. Seong-Ho Yoon, Seongyop Lim, Seong-hwa Hong, Wenming Qiao, D. Duayne Whitehurst, Isao Mochida, Bei An and Kiyoshi Yokogawa, A conceptual model for the structure of catalytically grown carbon nano-fibers, Carbon, 10.1016/j.carbon.2005.02.031, 43, 9, 1828-1838, Volume 43, Issue 9, August 2005, Pages 1828-1838, 2005.08.
Presentations
1. 尹 聖昊, Study of environmental air purification with the use of activated carbon resources with minimized loss of chemical energy, Takaaki Shimohara, Makiko Maeda, Jin Miyawaki, Masaaki Yoshikawa, Yoon Seong-Ho, Isao Mochida, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, 2015.08.
2. 尹 聖昊, Quantitative NMR study of electrolyte ion behaviors in micropores for EDLC: KOH-activated carbon vs. steam-activated carbon, Keiko Ideta, Yusuke Shingai, Masanori Saito, Koji Nakabayashi, Jin Miyawaki, Isao Mochida, Seong-Ho Yoon, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, 2015.08.
3. 尹 聖昊, Influence of activation methods on quantities of electrolyte ions stored in pores of activated carbons, Jin Miyawaki, Keiko Ideta, Yusuke Shingai, Masanori Saito, Koji Nakabayashi, Isao Mochida, Seong-Ho Yoon, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015 , The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, 2015.08.
4. 尹 聖昊, Study on the selective preparation of tubular carbon nanofibers using CO2-mixed gas, Koji Nakabayashi, Kazunari Teshima, Jin Miyawaki, Isao Mochida, Seong-Ho Yoon, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, 2015.08.
5. 尹 聖昊, Biomass-derived hard carbon as an effective anode for sodium ion batteries, Yu-Jin Han, Jian-Xiao Yang, Koji Nakabayashi, Jin Miyawaki, Seong-Ho Yoon, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, 2015.08.
6. 尹 聖昊, Effect of carbon material properties on temperature rising during MAS-NMR measurements, Kouichiro Hata, Keiko Ideta, Shigemi Toda, Ryusuke Harada, Isao Mochida, Seong-Ho Yoon, Jin Miyawaki, 2015 IMCE International Symposium jointed with the 4th International Symposium of Nano-Macro Materials, Devices, and System Research Alliance Project, Chikushi Hall, C-cube, Japan,2015, The 13th China-Japan-Korea Joint Symposium on Carbon Materials to Save the Earth (CSE2015), Sofitel Hotel, Xi'an,China,2015, 2015.08.
7. 尹 聖昊, Study on the preparation of carbon fibers with upgraded mechanical properties from naphtha cracked oil hybridized with coal tar, Byung-Jun Kim, Toru Kotegawa, Youngho Eom, Koji Nakabayashi, Osamu Kato, Jin Miyawaki, Byoung Chul Kim, Isao Mochida, Seong-Ho Yoon, The Annual World Conference on Carbon (CARBON 2015), The Conference Center, Dresden, Germany,2015, The Annual World Conference on Carbon (CARBON 2015), The Conference Center, Dresden, Germany,2015, 2015.07.
8. , [URL].
Membership in Academic Society
  • Japan Capacitor Society
  • Korea Society of Chemical Technology
  • Japan Carbon Society
  • Korea Society of Chemical Technology
  • Korea Carbon Society
  • Korea Society of Chemical Technology
  • Korea Carbon Society
  • 学外
  • 学外
  • Japan Carbon Society
Awards
  • Reduction of Partial Fusion of Pitch Fibers Derived from Isotropic Pitch with Low Softening Point through Pressurized Stabilization
  • Elucidation of mechanism of steam and KOH activation processes by the microdomain model
  • Effect of the Carbon Nanofiber Addition on the Mechanical Properties of MgO-C Brick
Educational
Educational Activities
The fossil resources such as petroleum and coal have been considered as most important sources of energies and materials to keep the human life from the past to the present. However, their available amounts which are able to produce from the earth have decreased and also their uses would be considered as main reason for recent environmental pollution and green house gases.
Functional carbon is one of the key materials to solve the problems of energy and environment. Fortunately, Japan has still maintained the highest technologies for functional carbon materials and their applications for energy and environment. To lead the area of carbon technology in the future, we have to pursue our goals to develop novel scientific principles for practical applications to solve many up-coming problems in energy and environmental areas.
In relation to our research, we have been studying four themes in the following;
(1) Fundamental research of various carbon materials with high-functionality and high-performance
- Invention of advanced materials by controlling their nano-structural units as the new methods
(2) Materialization of nano-hybrid carbon materials by using the new nano-technology
- Development into various application fields by newly improving properties of general carbon materials
(3) Effective utilization of fossil resources as carbon materials for energies and environments
- Research of De-SOx, De-NOx, desalinization, battery, capacitor and fuelcell by using activated carbons and carbon nano-materials supported catalysts
(4) Constant creation of new materials and novel properties of new materials
Other Educational Activities
  • 2021.02.
  • 2010.08.
  • 2011.09.
  • 2008.08.
  • 2007.08.
Social
Professional and Outreach Activities
A member of a committee for open campus
Supervisor for the dispatched student from Matsusita Battery and Asahi Organic.