|Jin Miyawaki||Last modified date：2022.11.24|
Associate Professor / Department of Advanced Device Materials
Institute for Materials Chemistry and Engineering
Institute for Materials Chemistry and Engineering
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Homepage of Yoon and Miyawaki laboratory .
Doctor of Science
Country of degree conferring institution (Overseas)
Field of Specialization
Total Priod of education and research career in the foreign country
My research subject is development of new high-efficiency functional carbonaceous materials to solve energy and environmental problems. I guide students and researchers through daily research and educate them through seminars. Our laboratory accepts many foreign researchers.
Research InterestsMembership in Academic Society
- Elucidation of key factors of molecular adsorption selectivity of activated carbons
keyword : selectivity, adsorption, pore, carbon materials
2018.04～2021.03Most of porous materials lose their adsorption ability under high humid condition because of inhibitive adsorption of water molecules. To overcome this problem, I introduce new concept to new carbonaceous porous material. The carbon material, which I will try to prepare, possesses shallow hydrophobic pores. The hydrophobicity and shallowness of pores and would allow easy desorption of water molecules..
- Development of versatile assessment method of pore shape for disordered complex porous materials
keyword : pore, shape, porous materials, 129Xe-NMR
- Development of carbon material for adsorption heat pump
keyword : Carbon material, Adsorption heat pump, Adsorption amount, Adsorption kinetics
- Elucidation of surface and pore properties of carbon materials by solid-state NMR method using water molecule as a surface probe
keyword : adsorption, surface, pore, carbon materials, water molecule, surface probe, solid-state NMR
- Mechanism elucidation of development of pore structure by using hyper-polarized 129Xe-NMR technique
keyword : adsorption, pore, carbon materials, hyper-polarized 129Xe-NMR
- Development of carbon materials having shallow hydrophobic pores as high performance adsorbent even in humid atmosphere
keyword : adsorption, competive adsorption, pore, carbon materials
2008.02～2010.03Most of porous materials lose their adsorption ability under high humid condition because of inhibitive adsorption of water molecules. To overcome this problem, I introduce new concept to new carbonaceous porous material. The carbon material, which I will try to prepare, possesses shallow hydrophobic pores. The hydrophobicity and shallowness of pores and would allow easy desorption of water molecules..
- Influence of various factors, such as pore size, surface functional groups, and surface structure, on 129Xe NMR spectra was quantitatively elucidated. The findings would enable to investigate pore structure and its development mechanism of carbonaceous porous materials, which have been difficult only by nitrogen adsorption measurements at 77 K.
- This project aims to develop high efficiency catalysts, with which gasification process progresses at low reaction temperature, and to fabricate the gasification process, in which enables catalyst separation.
- Development of prompt and continuous technologies for air quality conservation using activated carbon fibers and activated carbon nano-fibers
- Low temperature operational fuel cells such as direct methanol (DMFC) and polymer electrolyte membrane fuel cells (PEMFC) come into spotlight as promising power sources for many applications such as small portable electric devices, automotive and stationary domestic applications. Although a number of researches have been performed for last two decades, further development is still very necessary to reduce the cost markedly by decreasing the used amount of noble metals in the catalyst through the improvement of catalytic activities. In this study, the structure-controlled carbon nanofibers (CNFs) were synthesized to develop improved catalyst supports both for anode and cathode. The performances of the catalysts prepared by the selected CNFs were examined in both electrodes of DMFC and PEMFC.
Very thin (diameter of 7 to 20 nm, denoted as CM55 for DMFC anode) and thin (40 to 70nm, NFM415 for PEMFC anode) Herringbone-type CNFs were attempted to be highly dispersed using a nano-dispersion equipment (T.K. FILMICSR Model 56-50, Primix Co., Japan) for releasing entangled network with specially designed impeller agitation of 16500 rpm for 30 minutes in distilled water. The maximum power densities of a commercial catalyst, Johnson Matthey PtRu60wt% catalyst (Pt: 2, Ru: 1, and Carbon: 2 mg/cm2), was 55, 121, 162 mW/cm2 at 30, 60, 90℃, respectively, for the DMFC anode. In comparison, the single cell performances of PtRu40wt% anode catalyst supported on CM55 for DMFC (Pt: 1.33, Ru: 0.67, and Carbon: 3 mg/cm2) were 62, 156 and 224 mW/cm2 at the cell temperature of 30, 60, and 90oC, respectively, even if the Pt and Ru contents were reduced by 36%. The high dispersed NFM415 was examined as the anode catalyst support of PEMFC. The Maximum power density of commercial Johnson Matthey catalyst (Pt: 0.45, Carbon: 1.68 mg/cm2) appeared to be 800 mW/cm2 at cell temperature of 80℃. On the other hand, the catalyst prepared by highly dispersed NFM415 and chemical reduction method using NaBH4 showed slightly lower value to be 771 mW/cm2, and the highest performance was observed at the catalyst prepared by NFM415 and reflux method to be 947 mW/cm2 at the same Pt weight base.
GP-CNF-NA as the cathode catalyst support was prepared from Platelet-type CNFs through the graphitization at 2800℃ and nitric acid treatment to improve the oxidative stability for the DMFC and PEMFC cathode catalysts. The commercial Johnson Matthey Pt black (Pt: 2, Carbon: 0 mg/cm2) as the cathode catalyst of DMFC showed the single cell power densities of 46, 116, 164 mW/cm2 at the cell temperature of 30, 60, 90℃, respectively. The DMFC cathode catalyst supported on GP-CNF-NA (Pt: 0.8, Carbon: 1.2 mg/cm2) using chemical reduction method showed slightly lower power densities to be 32, 94, 146 mW/cm2. The Johnson Matthey Pt black (Pt: 3, Carbon: 0 mg/cm2) as the cathode catalyst of PEMFC showed the single cell power densities of 800 mW/cm2 at the cell temperature of 80℃. In comparison, the cathode catalysts using GP-CNF-NA (Pt: 0.4, Carbon: 0.6 mg/cm2) prepared by chemical reduction and reflux method showed the power densities to be 600 and 670 mW/cm2, respectively.
- Development of surface optimized carbon nano-fibers (CNFs) as new environmental catalyst
- Pitch based carbon fiber for the application of CFRP will be developed using POSCO coal tar as a raw material. The target properties of developed carbon fiber are as follow; Tensile strength: over 150 kg/mm2, Elongation: over 1.5 %, Compressive strength: over 70% of TS.
|1.||Hyeonseok Yi, Koji Nakabayashi, Seong-Ho Yoon, Jin Miyawaki, Study on the applicability of pressurized physically activated carbon as an adsorbent in adsorption heat pumps, RSC Advances, 10.1039/d1ra08395c, 12, 5, 2558-2563, 2022.01, Activated carbon is a suitable adsorbent for adsorption heat pumps (AHPs) with ethanol refrigerants. Although chemically activated carbon with highly developed pore structures exhibits good ethanol adsorption, the associated high production costs inhibit its practical application as an AHP adsorbent. Moreover, although physical activation can produce inexpensive activated carbon, the limited pore development limits the ethanol uptake. Recently, we developed a pressurized physical activation method that can produce activated carbon with a well-developed pore structure and characteristic pore size distribution. In this study, we investigated the applicability of the pressurized physically activated carbon as an adsorbent in activated carbon–ethanol AHP systems. Because of the large number of pressurization-induced pores of appropriate size, the pressurized physically activated carbon showed effective ethanol uptake comparable with that of chemically activated carbon on a weight basis. Furthermore, on a volume basis, the pressurized physically activated carbon, with a high bulk density, showed much higher effective ethanol uptake than chemically activated carbon. These results confirm the potential of the pressurized physically activated carbon as a relatively inexpensive high-performance adsorbent for AHP systems with ethanol refrigerants..|
|2.||Hyeonseok Yi, Koji Nakabayashi, Seong-Ho Yoon, Jin Miyawaki, Pressurized physical activation: A simple production method for activated carbon with a highly developed pore structure, Carbon, 10.1016/j.carbon.2021.07.061, 183, 735-742, 2021.10, 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..|
|3.||Yao Yu, Jin Miyawaki, Pore-size-selective control of surface properties of porous carbons by molecular masking, CARBON, 10.1016/j.carbon.2020.07.050, 170, 380-383, 2020.12, [URL], A new strategy incorporating three sequential treatments—selective molecular pre-masking, surface modification, and unmasking—is proposed for pore-size-dependent control of the surface properties of porous carbon materials. The method was experimentally validated using wide-pore-selective hydrophilization. n-Nonane was physically adsorbed for pre-masking, followed by room-temperature ozonation for surface modification. This process was used to introduce surface functional groups into wide pores, while leaving narrow pores intact. This study facilitates the development of new porous carbon materials with different surface properties that depend on pore size. This flexible strategy can be employed in conjunction with various molecular masking agents and surface-modification methods..|
|4.||Piotr Kowalczyk, Jin Miyawaki, Yuki Azuma, Seongho YOON, Koji NAKABAYASHI, Piotr A. Gauden, Sylwester Furmaniak, Artur P. Terzyk, Marek Wisniewski, Jerzy Włoch, Katsumi Kaneko, Alexander V. Neimark, Molecular simulation aided nanoporous carbon design for highly efficient low-concentrated formaldehyde capture, Carbon, 10.1016/j.carbon.2017.08.024, 124, 152-160, 2017.08.|
|5.||Doo-Won Kim, Hyun-Sig Kil, Jandee Kim, Koji NAKABAYASHI, Choong Kyun Rhee, Jin Miyawaki, Seongho YOON, Highly graphitized carbon from non-graphitizable raw material and its formation mechanism based on domain theory, Carbon, 10.1016/j.carbon.2017.05.086, 121, 301-308, 2017.05.|
|6.||Doo-Won Kim, Hyun-Sig Kil, Koji NAKABAYASHI, Seongho YOON, Jin Miyawaki, Structural elucidation of physical and chemical activation mechanisms based on the microdomain structure model, Carbon, 10.1016/j.carbon.2016.11.082, 114, 98-105, 2017.04, Activated carbons (ACs) prepared by chemical activation commonly show higher specific surface areas and higher yields than those prepared by physical activation. In this study, the differences in the pore development mechanisms between physical and chemical activation processes for AC preparation were studied from a structural point of view, based on the microdomain structure model. Phenol resin-based spherical carbon was used as the starting material. AC preparation via potassium hydroxide (KOH) activation (chemical activation) did not induce noticeable changes in the particle or microdomain sizes, despite the abundant development of pores. On the other hand, ACs produced via steam activation (physical activation) showed remarkable reductions in both particle and microdomain sizes, depending on the activation temperature. Considering the differences in activation yield and degree of developed porosity between chemical and physical activations, we concluded that, in the case of KOH activation, pore development homogeneously progressed overall for all microdomains consisting of carbon particles without apparent morphological change; however, steam activation caused inhomogeneous gasification from the outer surface of the carbon particles and microdomains. For this reason, KOH-ACs showed higher yield and superior pore development..|
|7.||Doo-Won Kim, Hyun-Sig Kil, Koji NAKABAYASHI, Seongho YOON, Jin Miyawaki, Improvement of electric conductivity of non-graphitizable carbon material via breaking-down and merging of the microdomains, EVERGREEN Joint Journal of Novel Carbon Resource Sciences & Green Asia Strategy, 4, 1, 16-20, 2017.03.|
|8.||Jin Miyawaki, Hyun-Sig Kil, Koichiro Hata, Keiko Ideta, Tomonori Ohba, Hirofumi Kanoh, Koji NAKABAYASHI, Seongho YOON, Development of innovative activated carbons for adsorption heat pump, Chemical Science & Engineering Series 4 Innovative Materials for Processes in Energy Systems, 11-14, 2016.10.|
|9.||Hyun-Sig Kil, Animesh Pal, Bidyut Baran Saha, Isao Mochida, Koji NAKABAYASHI, Seongho YOON, Jin Miyawaki, Preparation and ethanol adsorption propeties of activated carbons from biomass for adsorption heat pump, Chemical Science & Engineering Series 4 Innovative Materials for Processes in Energy Systems, 289-290, 2016.10.|
|10.||Jin Miyawaki, Joonyoung Yeh, Hyun-Sig Kil, Jihn-Koo Lee, Koji NAKABAYASHI, Isao Mochida, Seongho YOON, Influence of pore size and surface functionality of activated carbons on adsorption behaviors of indole and amylase, EVERGREEN Joint Journal of Novel Carbon Resource Sciences & Green Asia Strategy, 3, 2, 17-24, 2016.09.|
|11.||KIL HYUNSIG, TAEGON KIM, Koichiro Hata, Keiko Ideta, Tomonori Ohba, Hirofumi Kanoh, 持田 勲, Seongho YOON, Jin Miyawaki, Influence of surface functionalities on ethanol adsorption characteristics in activated carbons for adsorption heat pumps, Applied Thermal Engineering, 10.1016/j.applthermaleng.2014.06.018, 72, 2, 160-165, 2014.11.|
|12.||Hyun Sig Kil, Koichiro Hata, Keiko Ideta, Isao Mochida, Jin Miyawaki, Seongho YOON, Influence of surface functionality on ethanol adsorption behavior in activated carbons analyzed by solid-state NMR, Chemical Science & Engineering Series 3 Innovative Materials for Processes in Energy Systems, 525-528, 2013.09.|
|13.||Kyung Jin Lee, Jin Miyawaki, Nanako Shiratori, Seongho YOON, Jyongsik Jang, Towards an effective adsorbent for polar pollutants: Formaldehyde adsorption by activated carbon fiber, Journal of Hazardous Materials, 10.1016/j.jhazmat.2013.04.049, 260, 82-88, 2013.09.|
|14.||Jin Miyawaki, Gang-Ho Lee, Joonyoung Yeh, Nanako Shiratori, Takaaki Shimohara, 持田 勲, Seongho YOON, Development of carbon-supported hybrid catalyst for clean removal of formaldehyde indoors, Catalysis Today, 10.1016/j.cattod.2011.09.036, 185, 1, 278-283, 2012.05.|
|15.||Jin Miyawaki, Takaaki Shimohara, Noriaki Shirahama, Akinori Yasutake, Masaaki Yoshikawa, Isao Mochida, Seong-Ho Yoon, Removal of NO(x) from air through cooperation of the TiO(2) photocatalyst and urea on activated carbon fiber at room temperature, Applied Catalysis B: Environmental, 10.1016/j.apcatb.2011.09.012, 110, 2, 273-278, 2011.09.|
|16.||Yoshio Tahara, Jin Miyawaki, Minfang Zhang, Mei Yang, Iwao Waga, Sumio Iijima, Hiroshi Irie, Masako Yudasaka, Histological assessments for toxicity and functionalization-dependent biodistribution of carbon nanohorns, Nanotechnology, 10.1088/0957-4484/22/26/265106, 22, 26, 265106, 2011.07.|
|17.||Jin Miyawaki, Sachiko Matsumura, Ryota Yuge, Tatsuya Murakami, Shigeo Sato, Akihiro Tomida, Takashi Tsuruo, Toshinari Ichihashi, Takako Fujinami, Hiroshi Irie, Kunihiro Tsuchida, Sumio Iijima, Kiyotaka Shiba and Masako Yudasaka, Biodistribution and Ultrastructural Localization of Single-Walled Carbon Nanohorns Determined In Vivo with Embedded Gd2O3 Labels, ACS Nano, Vol.3(No.6), 1399-1406, 2009.06.|
|18.||Jin Miyawaki, Masako Yudasaka, Takeshi Azami, Yoshimi Kubo, Sumio Iijima, Toxicity of single-walled carbon nanohorns, ACS Nano, Vol.2(No.2), pp213-226, 2008.02.|
|19.||Jin Miyawaki, Masako Yudasaka, Ryota Yuge, Sumio Iijima, Organic-Vapor-Induced Repeatable Entrance and Exit of C60 into/from Single-Wall Carbon Nanohorns at Room Temperature, J. Phys. Chem. C, Vol.111(No.27), pp9719-9722, 2007.07.|
|20.||Jin Miyawaki, Ryota Yuge, Takazumi Kawai, Yudasaka Masako, Sumio Iijima, Evidence of Thermal Closing of Atomic-Vacancy Holes in Single-Wall Carbon Nanohorns, J. PHys. Chem. C, Vol.111(No.4), pp1553-1555, 2007.02.|
|21.||Jin Miyawaki, Masako Yudasaka, Hideto Imai, Hideki Yorimitsu, Hiroyuki Isobe, Eiichi Nakamura, Sumio Iijima, In Vivo Magnetic Resonance Imaging of Single-Walled Carbon Nanohorns by Labeling with Magnetite Nanoparticles, Adv. Mater., Vol.18(No.8), pp1010-1014, 2006.04.|
|22.||Jin Miyawaki, Masako Yudasaka, Hideto Imai, Hideki Yorimitsu, Hiroyuki Isobe, Eiichi Nakamura, Sumio Iijima, Synthesis of Ultrafine Gd2O3 Nanoparticles Inside Single-Wall Carbon Nanohorns, J. Phys. Chem. B, Vol.110(No.11), pp5179-5181, 2006.03.|
|23.||Miyawaki, J; Yudasaka, M; Iijima, S, Control of hole-edge reactivity of single-wall carbon nanotubes, ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 227, U1270-U1270, Control of hole-edge reactivity of single-wall carbon nanotubes.
著者名: Miyawaki, J (Miyawaki, J); Yudasaka, M (Yudasaka, M); Iijima, S (Iijima, S)
ジャーナル名: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 巻: 227 ページ: U1270-U1270 部: Part 1 会議抄録: 245-IEC 発行: MAR 28 2004
被引用数: 0 (Web of Science から)
会議: 227th National Meeting of the American-Chemical Society 地名: Anaheim, CA 日付: MAR 28-APR 01, 2004
スポンサー: Amer Chem Soc
ドキュメントタイプ: Meeting Abstract
1. Japan Sci & Technol Corp, CNT Project, Tsukuba, Ibaraki 3058501, Japan
2. Meijo Univ, NEC, JST, CNT Project, Nagoya, Aichi, Japan
Email アドレス: email@example.com
発行者: AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Web of Science の分野: Chemistry, Multidisciplinary
ISSN: 0065-7727, 2004.11.
|24.||Jin Miyawaki, Masako Yudasaka, Sumio Iijima, Solvent Effects on Hole-Edge Structure for Single-Wall Carbon Nanotubes and Single-Wall Carbon Nanohorns, J. Phys. Chem. B, Vol.108(No.30), pp10732-10735, 2004.07.|
|25.||J. Miyawaki, K. Kaneko, Pore width dependence of the temperature change of the confined methane density in slit-shaped micropres, Chem. Phys. Lett., Vol.337(No.4-6), pp243-247, 2001.04.|
|26.||J. Miyawaki, T. Kanda, K. Kaneko, Hysteresis-Associated Pressure-Shift-Induced Water Adsorption in Carbon Micropores, Langmuir, Vol.17(No.3), pp664-669, 2001.02.|
|27.||J. Miyawaki, T. Kanda, T. Suzuki, T. Okui, Y. Maeda, K. Kaneko, Macroscopic Evidence of Enhanced Formation of Methane Nanohydrates in Hydrophobic Nanospaces, J. Phys. Chem. B, Vol.102(No.12), pp2187-2192, 1998.03.|
|1.||Kohei Kuroda, Tatsuya Tomoda, Keiko Ideta, Koji Nakabayashi, Seng-Ho Yoon, Jin Miyawaki, Investigation of pore structure of activated carbon prepared by different activation methods using temperature variable 129Xe-NMR technique, OKINAWA COLLOIDS 2019, 2019.11.|
|2.||Jin Miyawaki, Development of Activated Carbons with Enhanced Effective Adsorption Amount, - Thermal Issues for Hydrogen and New Refrigerants for Energy Systems - , Hydrogenius and I2CNER Joint Research Symposium, 2019.01.|
|3.||Jin Miyawaki, Yao Yu, Hyun-Sig Kil, Animesh Pal, Bidyut Baran Saha, Koji Nakabayashi, Seong-Ho Yoon, Toward activated carbons with enhanced effective adsorption amount by control of activation process, International Conference on Industrial, Mechanical, Electrical and Chemical Engineering (ICIMECE 2018), 2018.10.|
|4.||Jin Miyawaki, Yao Yu, Doo-Won Kim, Koji Nakabayashi, Seong-Ho Yoon, Development of functional activated carbons, The 1st International Forum on Graphene in Ulanqab & the 16th China-Japan-Korea International Symposium on Carbon Saves the Earth (CSE2018), 2018.08.|
|5.||Jin Miyawaki, KIL HYUNSIG, Keiko Ideta, Tomonori Ohba, Hirofumi Kanoh, 中林 康治, 持田 勲, 尹 聖昊, Development of High-performance Activated Carbon for Adsorption Heat Pump, The 15th Korea-China-Japan Joint Symposium on Carbon Saves the Earth (CSE2017), 2017.09.|
|6.||Jin Miyawaki, Doo-Won Kim, KIL HYUNSIG, 中林 康治, 尹 聖昊, Structural elucidation of physical and chemical activation mechanisms of activated carbons based on the microdomain structure model, 6th Symposium on Challenges for Carbon-based Nanoporous Materials, 2017.07, [URL].|
|7.||Hyeonseok Yi, Hiroki Shimanoe, Doowon Kim, Yao Yu, 中林 康治, 尹 聖昊, Jin Miyawaki, PREPARATION OF ACTIVATED CARBON BY PRESSURIZED PHYSICAL ACTIVATION, The World Conference on Carbon 2017: Carbon for Grand Challenges (Carbon2017), 2017.07, [URL].|
|8.||Jin Miyawaki, KIL HYUNSIG, Keiko Ideta, Tomonori Ohba, Hirofumi Kanoh, 中林 康治, 持田 勲, 尹 聖昊, Development of High-performance Activated Carbons for Adsorption Heat Pump, The 5th Symposium on Challenges for Carbon-based Nanoporous Materials (5th CBNM2016-NAGANO), 2017.02.|
|9.||Jin Miyawaki, KIL HYUNSIG, Keiko Ideta, Tomonori Ohba, Hirofumi Kanoh, 中林 康治, 持田 勲, 尹 聖昊, Development of Innovative Activated Carbons for Adsorption Heat Pump Application, 第４３回炭素材料学会年会, 2016.12.|
|10.||KIL HYUNSIG, 中林 康治, 尹 聖昊, Jin Miyawaki, Porosity Improvement of Activated Carbon by Multiple Chemical Activation, 第４３回炭素材料学会年会, 2016.12.|
|11.||KIL HYUNSIG, Koichiro Hata, Keiko Ideta, Tomonori Ohba, Hirofumi Kanoh, 持田 勲, 中林 康治, 尹 聖昊, Jin Miyawaki, Development of Activated Carbons for Adsorption Heat Pumps, 2016 AIChE Annual Meeting, 2016.11, [URL].|
|13.||Jin Miyawaki, KIL HYUNSIG, Koichiro Hata, Keiko Ideta, Tomonori Ohba, Hirofumi Kanoh, 持田 勲, 中林 康治, 尹 聖昊, Development of innovative activated carbons for adsorption heat pumps, IVth International Symposium on Innovative Materials for Processes in Energy Systems 2016 (IMPRES 2016), 2016.10, [URL].|
|14.||Hyun-Sig Kil, Animesh Pal, Bidyut Baran Saha, 持田 勲, 中林 康治, 尹 聖昊, Jin Miyawaki, Preparation and ethanol adsorption properties of activated carbons from biomass for adsorption heat pumps, IVth International Symposium on Innovative Materials for Processes in Energy Systems 2016 (IMPRES 2016), 2016.10, [URL].|
|15.||Doo-Won Kim, Hyun-Sig Kil, 中林 康治, 尹 聖昊, Jin Miyawaki, Elucidation of mechanism of steam and KOH activation processes by the microdomain model, The 14th Japan-China-Korea Joint Symposium on Carbon Saves the Earth (CSE2016) - New “Traditional” Carbon Materials for High-efficiency Energy Utilization and Environmental Protection –, 2016.09.|
|16.||Jin Miyawaki, Quantitative analysis of electrolyte ions in pores of activated carbons using solid-state NMR, 2015 Kyushu-Tsinghua Universities Joint Seminar on Environmental Protection, 2015.03.|
|17.||宮脇 仁, TAEGON KIM, Masanori Saito, Yusuke Shingai, Koji Saito, Choong Kyun Rhee, 持田 勲, 尹 聖昊, Quantitative analysis of electrolyte ions in EDLC electrode using solid-state NMR, 2nd Spain-Japan Joint Symposium for Advanced Supercapcitors, 2014.09.|
|18.||JOO-IL PARK, Wei Wei Pang, Luyang Yuan, Masashi Yasudome, CUI QINGYAN, 宮脇 仁, 尹 聖昊, 持田 勲, Heavy oil upgrading, JPIJS九州地区討論会 ～石油産業の役割と若手エンジニアの未来像～, 2014.09.|
|19.||宮脇 仁, Hyun-Sig Kil, Ryohei Miyamae, Koichiro Hata, Keiko Ideta, Tomonori Ohba, Hirofumi Kanoh, 持田 勲, 尹 聖昊, Improvement of ethanol adsorptivity of activated carbons for adsorption heat pump, Carbon2014, World Conference on Carbon, 2014.07.|
|20.||Hyun Sig Kil, Koichiro Hata, Keiko Ideta, Isao Mochida, Seongho YOON, Jin Miyawaki, Influence of surface functionality on ethanol adsorption behavior in activated carbons analyzed by solid-state NMR, Innovative Materials for Processes in Energy Systems, 2013.09.|
|21.||Hyun Sig Kil, Koichiro Hata, Keiko Ideta, Isao Mochida, Seongho YOON, Jin Miyawaki, Influence of surface functionality on ethanol adsorption behavior in activated carbons analyzed by solid-state NMR, Innovative Materials for Processes in Energy Systems, 2013.09.|
|22.||Koichiro Hata, Keiko Ideta, Ryohei Miyamae, Yuzo Ohata, Hyunsig Kil, Shigemi Toda, Ryusuke Harada, Jin Miyawaki, Isao Mochida, Seongho YOON, NMR analysis of water adsorption behavior in carbon micropores, The Annual World Conference on Carbon (Carbon 2013), 2013.07.|
|23.||Koichiro Hata, Yuzo Ohata, Keiko Ideta, Shigemi Toda, Ryusuke Harada, Jin Miyawaki, Isao Mochida, Seongho YOON, Elucidation of surface properties of carbon blacks by solid-state NMR using waer molecule as a surface probe, The Annual World Conference on Carbon (Carbon 2013), 2013.07.|
|24.||Nor'Azizi Bin Othman, YUN JUMI, Jin Miyawaki, Isao Mochida, Seongho YOON, H2S removal using activated carbon from waste palm tree trunk, The Annual World Conference on Carbon (Carbon 2013), 2013.07.|
- The Japan Society on Adsorption
- The Carbon Society of Japan
- The Chemical Society of Japan