Updated on 2024/10/07

Information

 

写真a

 
SONG JUNTAE
 
Organization
Faculty of Engineering Department of Applied Chemistry Assistant Professor
School of Engineering （Concurrent）
Title
Assistant Professor
Contact information
メールアドレス
Tel
0928026709
External link

Degree

  • Doctor of Engineering (Tokyo Institute of Technology, Japan)

  • Master of Engineering (Kyungpook National University, Repulic of Korea)

  • Bachelor of Engineering (Kyungpook National University, Repulic of Korea)

Research Interests・Research Keywords

  • Research theme：Zn-air battery development

    Keyword：Zn-air battery, Air electrode, OER, ORR

    Research period： 2023.4 - 2026.5

  • Research theme：Advanced functional electrode for photoelectrochemistry

    Keyword：Photoelectrochemistry, water splitting

    Research period： 2022.2 - 2024.5

  • Research theme：Electrocatalyst for CO2 Reduction

    Keyword：Electrochemistry, Catalyst

    Research period： 2019.8

Awards

  • 11th KINC Fusion Research Award

    2021.4   KAIST Institute for Nanocentry  

Papers

  • Bi/UiO-66-derived electrocatalysts for high CO2-to-formate conversion rate Reviewed International journal

    #Yuta Takaoka, @Jun Tae Song, @Atsushi Takagaki, @Motonori Watanabe, @Tatsumi Ishihara

    Applied Catalysis B: Environmental   326   122400   2023.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    Repository Public URL： https://hdl.handle.net/2324/7172333

  • Infiltration of cerium into a NiO–YSZ tubular substrate for solid oxide reversible cells using a LSGM electrolyte film Reviewed International journal

    9 ( 3 )   1530 - 1540   2021.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/d0ta08564b

  • BaZr(Ce,Y)O<sub>3</sub>-Pr-Doped CeO<sub>2</sub> Double Columnar for the Cathodic Functional Layer of Ni-Fe Metal-Supported Protonic Ceramic Fuel Cells

    Kim, HY; Watanabe, M; Song, JT; Inada, M; Ishihara, T

    ACS APPLIED ENERGY MATERIALS   7 ( 18 )   7945 - 7955   2024.9   （ ISSN:2574-0962 ）

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    Publisher：ACS Applied Energy Materials  

    Metal-supported protonic ceramic fuel cells were prepared, and the effects of a double columnar layer at the cathode side of BaZr0.44Ce0.36Y0.2O3 (BZCY) on power density and open-circuit voltage (OCV) were studied. The double columnar structure of Pr0.2Ce0.8O2 (PrDC) and BZCY was prepared with pulsed laser deposition. It was found that the insertion of the double columnar layer was highly effective for increasing the power density and OCV. The optimum composition of the double columnar was BZCY:PrDC = 7:3, with a thickness of 200 nm. The power density of PCFCs with the BZCY-PrDC double columnar reached 413 mW/cm2, and the OCV was approximately 1.05 V at 873 K, which is six times higher than that of a cell without a functional layer. The high power density of the cell was attributed to the decreased overpotential of the cathode. Therefore, the BZCY-PrDC double columnar layer is effective in expanding the reaction site by increasing the proton concentration at the cathodic interface.

    DOI： 10.1021/acsaem.4c01529

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  • Nanocomposite of Nb-based binary phase for lowering the activation energy of Li<SUP>+</SUP> intercalation as an anode for high-performance aqueous dual-ion batteries

    Yang, DY; Matsuda, J; Song, JT; Watanabe, M; Ishihara, T

    JOURNAL OF MATERIALS CHEMISTRY A   12 ( 22 )   13338 - 13347   2024.6   （ ISSN:2050-7488 eISSN:2050-7496 ）

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    Publisher：Journal of Materials Chemistry A  

    Aqueous dual-ion batteries have good safety, environmental compatibility, and low cost due to the use of an aqueous electrolyte. However, water electrolysis occurs during charging at high potential, resulting in a poor cyclic stability of aqueous dual-ion batteries. Hence, novel anode materials are urgently needed to be developed for aqueous dual-ion batteries with low water electrolysis. A niobium-based binary-phase composite material is reported with a capacity of 135 mA h g−1 at a current density of 0.2 mA cm−2 and with excellent reversibility in the potential range of −1.3-0 V vs. Ag/AgCl. The activation energy of Li+ intercalation was obviously decreased because of the formation of an interface, which enhanced the Li+ intercalation reaction between FeNbO4 and MoNb12O33. In addition, the lower amount of Fe2+ in the lattice of MoNb12O33 caused localized compressive strain, which promoted fast Li+ diffusion in MoNb12O33. A full dual-ion battery of 3.0 V was constructed using the binary-phase niobium-based composite for the anode, and demonstrated a high cycle stability and an average coulombic efficiency of 91% over 300 cycles. Furthermore, considering both the electrolyte and electrode materials, the theoretical energy density of this dual-ion battery was estimated to be 250 W h kg−1, which is close to that of the current Li-ion rechargeable battery.

    DOI： 10.1039/d4ta01293c

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  • [FeFe]-Hydrogenase Encapsulated in Zeolitic Imidazolate Framework (ZIF)-8 Nanoparticles as a Robust Biocatalyst for Photocatalytic Hydrogen Production

    Kosem, N; Ohsaki, Y; Watanabe, M; Song, JT; Ishihara, T

    ACS SUSTAINABLE CHEMISTRY & ENGINEERING   12 ( 16 )   6300 - 6309   2024.4   （ ISSN:2168-0485 ）

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    Publisher：ACS Sustainable Chemistry and Engineering  

    [FeFe]-hydrogenase (HydA) is an active biocatalytic enzyme for solar-to-hydrogen (H2) conversion. However, stability is a main challenge that limits practical applications. This work aims to encourage the efficiency of HydA by encapsulating it in the zeolitic imidazolate framework-8 (ZIF-8) as a synthetic protective shield. The construction of HydA@ZIF-8 nanoparticles, with an average diameter of 700-1000 nm, at ambient conditions can preserve HydA activity within a spatially confined microenvironment, as characterized by scanning electron microscopy and X-ray diffraction analysis. Based on MV•+-dependent H2 production activity and kinetic analysis, both the stability and efficiency of HydA@ZIF-8 surpass those of free HydA and whole-cell biocatalysts over a wider range of pH and temperature. The achievement of robust HydA@ZIF-8 construction represents a significant step forward in the development of biocatalysts for various future applications.

    DOI： 10.1021/acssuschemeng.3c08560

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  • Suppressed Gold Penetration with the Molybdenum Oxide Interlayer to Increase Power Conversion Efficiency of Perovskite Solar Cells

    Purev-Ochir, B; Song, JT; Wang, PP; Yahiro, M; Yamada, S; Nakanotani, H; Matsushima, T; Adachi, C

    SOLAR RRL   8 ( 8 )   2024.4   （ ISSN:2367-198X ）

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    Publisher：Solar RRL  

    Perovskite solar cells (PSCs) have undergone an unprecedentedly rapid development in both power conversion efficiency (PCE) and operational durability. However, a number of unknown challenges remain before PSC products are ready to launch. Herein, it is demonstrated that the vacuum deposition of gold (Au) onto the organic hole-transport layer (HTL) results in Au penetration into the perovskite layer. This Au penetration proves to be a limiting factor in PCE due to detrimental carrier recombination caused by the penetrated Au component inside the perovskite light absorber. To mitigate this issue, a thin molybdenum oxide (MoOx) interlayer between the organic HTL and the Au electrode is introduced, effectively reducing the Au penetration and suppressing the carrier recombination. Consequently, this MoOx introduction increases PCEs from ≈16.9% to ≈19.6% by ≈2.7%. Furthermore, using the MoOx interlayer improves the long-term durability of PSCs. These findings are crucial in elucidating a basic mechanism that limits PCE and in advancing the fabrication of PSC products with even higher performance.

    DOI： 10.1002/solr.202400029

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  • Surface Modification of NiFe Anode-Support for Thin-Film Solid-Oxide Fuel Cell

    KHAN Sovann, SONG Jun Tae, WATANABE Motonori, ISHIHARA Tatsumi

    Electrochemistry   92 ( 3 )   037005 - 037005   2024.3   （ ISSN:13443542 eISSN:21862451 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：The Electrochemical Society of Japan  

    <p>A dense NiO-Fe<sub>2</sub>O<sub>3</sub> (NiFe) pellet has been developed as a potential anode-support for thin-film solid oxide fuel cells (SOFCs). However, preparation of dense NiFe is very challenging. Hole-formed NiFe pellets or porous NiFe pellets are frequently formed, which cannot be used as a support (substrate) for thin-film SOFCs. Therefore, this hole-formed NiFe support is simply wasted. In this report, we attempt to re-qualify this NiFe support to be a valuable substrate, which can be used for fabricating thin-film SOFCs. By deposition of smaller NiFe particles to cover the hole-formed NiFe support, the surface of this NiFe pellet is modified. Large holes on the surface disappear. The newly formed NiFe support can be used for fabricating a single cell with La<sub>0.9</sub>Sr<sub>0.1</sub>Ga<sub>0.8</sub>Mg<sub>0.2</sub>O<sub>3−δ</sub> as thin-film electrolyte operated at intermediate temperature. Maximum power density generated from this cell is 0.45, 0.86 and 1.28 W cm<sup>−2</sup> at 873, 923 and 973 K, respectively.</p>

    DOI： 10.5796/electrochemistry.23-00164

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  • Photobiocatalytic conversion of solar energy to NH3 from N2 and H2O under ambient condition Invited Reviewed International journal

    @Nuttavut Kosem, #Xiao-feng Shen, @Yutaka Ohsaki, @Motonori Watanabe, @Jun Tae Song, @Tatsumi Ishihara

    Applied Catalysis B: Environmental   2024.3

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  • Photobiocatalytic conversion of solar energy to NH3 from N2 and H2O under ambient condition

    Nuttavut Kosem, Xiao-feng Shen, Yutaka Ohsaki, Motonori Watanabe, Jun Tae Song, Tatsumi Ishihara

    Applied Catalysis B: Environmental   342   123431 - 123431   2024.3   （ ISSN:0926-3373 eISSN:1873-3883 ）

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.apcatb.2023.123431

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  • Mitigating Defect States of All-Inorganic CsPbI<sub>2</sub>Br Perovskite via Multifunctional 2-Amino-5-Nitrothiazole Additive for an Efficient Air-Processed Outdoor/Indoor Photovoltaics

    Bahadur, J; Cho, S; Pandey, P; Yoon, S; Lee, DG; Ryu, J; Song, JT; Lim, J; Kang, DW

    SOLAR RRL   8 ( 5 )   2024.3   （ ISSN:2367-198X ）

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    All-inorganic CsPbI2Br mixed halide perovskites show promise as wide-bandgap photoabsorbers in photovoltaics. However, the rapid crystal growth observed in solution-processed CsPbI2Br often leads to morphologies plagued by pinholes and defects, which limit device performance. This study introduces 2-Amino-5-nitrothiazole (ANT), an innovative precursor additive, to enhance film quality. ANT's selective interactions with the perovskite precursor moderate the crystal growth, resulting in a dense, flawless CsPbI2Br film characterized by superior crystallinity and coverage. Furthermore, the -NH2 group in ANT coordinates with Pb octahedra, effectively mitigating charge defects through NH=I/Br bonds. Simultaneously, S=C-N sites interact with uncoordinated Pb2+ ions, reducing defect states and nonradiative recombination. This innovation achieves an impressive device efficiency of 17.13% with a fill factor (FF) of 83.41%, surpassing the control's efficiency of 15.21% (FF of 80.45%). Notably, the champion device maintains an efficiency of 29.47% under indoor light-emitting diode lighting at 1000 lux. Additionally, the optimized perovskite solar cell demonstrates remarkable stability, retaining ≈90% of its efficiency for over 720 h at 85 °C in air, even without encapsulation.

    DOI： 10.1002/solr.202300912

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  • Hot-Antisolvent Assisted Morphological Regulation of Perovskites for Semitransparent Photovoltaics Employing Hot-Pressing Approach

    Lee, DG; Pandey, P; Bahadur, J; Song, JT; Cho, JS; Kang, DW

    INTERNATIONAL JOURNAL OF ENERGY RESEARCH   2024   2024.2   （ ISSN:0363-907X eISSN:1099-114X ）

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    Publisher：International Journal of Energy Research  

    The processing of halide perovskites in the air significantly influences their morphology and surface coverage, often leading to the presence of numerous trap densities that adversely affect device performance. In this study, we explored the development of perovskite films using a solvent extraction method, where the temperature of the anisole antisolvent was varied. Our findings demonstrate that the hot-antisolvent strategy effectively controls nucleation, resulting in the formation of highly dense, pinhole-free, and crack-free perovskite films with reduced surface roughness. Films fabricated using this hot-antisolvent approach exhibited enhanced photoluminescence, indicating lower trap density and increased recombination resistance. They also showed slower charge carrier recombination rates and efficient charge extraction, suggesting the suppression of nonradiative recombination. Furthermore, the superior quality of perovskite films obtained through the hot-antisolvent strategy significantly enhanced the power conversion efficiency (PCE) of hot-pressed semitransparent perovskite solar cells. The PCE remarkably increased from 0.13% to an impressive 12.65% while maintaining an average visible transmittance of 26.55% and exceptional air stability for 2000 hours with no significant degradation in initial PCE. This study achieves a record-breaking light utilization efficiency of 3.36% in the realm of research on hot-press processes.

    DOI： 10.1155/2024/9417829

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  • Enhanced charge mediator properties of photocatalysts with reduced graphene nanoribbons for photocatalytic acceleration of hydrogen production in aqueous media

    Ryono Morita, Yasushi Murakami, Xiao-Feng Shen, Dengyao Yang, Motonori Watanabe, Jun Tae Song, Atsushi Takagaki, Tatsumi Ishihara

    Journal of Materials Chemistry C   12 ( 5 )   1652 - 1660   2024.2   （ ISSN:2050-7526 eISSN:2050-7534 ）

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    Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    In this study, a hybrid photocatalyst with titanium oxide using reduced graphene nanoribbons (rGNR) was fabricated.

    DOI： 10.1039/d3tc03622g

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  • Controlled Pore Size of NiO-YSZ Tubular Substrate for Improved Performance of Reversible Solid Oxide Cell Using LaGaO<sub>3</sub> Electrolyte Film

    Bin Liu, Tan Zhe, Sun Kim, Jun Tae Song, Motonori Watanabe, Tatsumi Ishihara

    Journal of The Electrochemical Society   171 ( 2 )   024504 - 024504   2024.2   （ ISSN:0013-4651 eISSN:1945-7111 ）

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    Publishing type：Research paper (scientific journal)   Publisher：The Electrochemical Society  

    Effects of channel size in NiO-YSZ porous substrate were studied on power density in solid oxide fuel cell mode and electrolysis current in steam electrolysis mode. It was found that the cell deposited on anode substrate with larger pore diameter shows a superior performance. The LSGM cell prepared on Ni-YSZ tube with average channel diameter of ca. 2.5 μm shows the maximum power density of 0.36 W cm<sup>−2</sup> in SOFC mode and 0.42 A cm<sup>−2</sup> at 1.6 V in SOEC mode at 873 K. Spike potential noise which may be caused by insufficient gas diffusion in NiO-YSZ porous substrate was observed under constant current electrolysis condition in case of NiO-YSZ tube with narrow channel and the spike noise is suppressed by increasing channel size. NiO-YSZ tube with large channel size is also effective for increasing long term stability in electrolysis mode.

    DOI： 10.1149/1945-7111/ad2815

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    Other Link： https://iopscience.iop.org/article/10.1149/1945-7111/ad2815/pdf

  • Controlled Pore Size of NiO-YSZ Tubular Substrate for Improved Performance of Reversible Solid Oxide Cell Using LaGaO3 Electrolyte Film Reviewed International journal

    Journal of The Electrochemical Society   2024.2

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Visible light driven hydrogen peroxide production by oxygen and phosphorus co-doped CoP-C3N4 photocatalyst

    Kaito Jinguji, Motonori Watanabe, Ryono Morita, Yuta Takaoka, Md. Sharif Hossain, Jun Tae Song, Atsushi Takagaki, Junko Matsuda, Tatsumi Ishihara

    Catalysis Today   426   114400 - 114400   2024.1   （ ISSN:0920-5861 eISSN:1873-4308 ）

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.cattod.2023.114400

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  • Enhanced charge mediator properties of photocatalysts with reduced graphene nanoribbons for photocatalytic acceleration of hydrogen production in aqueous media Reviewed International journal

    Journal of Materials Chemistry C   2023.12

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  • Oxide ion conductivity in doped bismuth gallate mullite type oxide, Bi2Ga4O9

    Maksymilian Kluczny, Thi Nguyen, Jun Tae Song, Motonori Watanabe, Atsushi Takagaki, Aleksandar Staykov, Tatsumi Ishihara

    Solid State Ionics   401   116343 - 116343   2023.11   （ ISSN:0167-2738 eISSN:1872-7689 ）

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.ssi.2023.116343

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  • Surface defect passivation of All-Inorganic CsPbI2Br perovskites via fluorinated ionic liquid for efficient Outdoor/Indoor photovoltaics processed in ambient air

    Bahadur, J; Cho, SW; Pandey, P; Ryu, J; Yoon, S; Lee, DG; Song, JT; Cho, JS; Kang, DW

    APPLIED SURFACE SCIENCE   637   2023.11   （ ISSN:0169-4332 eISSN:1873-5584 ）

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    Publisher：Applied Surface Science  

    All-inorganic α-CsPbI2Br perovskite has garnered considerable interest due to its optical bandgap (∼1.92 eV) suitable for tandem architectures and superior thermal stability. However, CsPbI2Br based perovskite solar cells (PSCs) exhibit severe energy loss due to presence of various surface defects like uncoordinated Pb2+ ions, halide ion vacancies and pinholes, which causes serious non-radiative recombination and limit the further improvement in power conversion efficiency (PCE). Surface passivation strategy is an effective approach to produce high quality α-CsPbI2Br film. Herein, we introduce fluorinated ionic liquid, 3-(Trifluoromethyl) benzylamine (CFBA), as surface passivating agent. The chemical analysis shows that the trifluoro (-CF3) and amine groups of CFBA strongly interacted with perovskite surface via forming Pb-F and H-I bonding, respectively. The high electronegative fluoride atoms of -CF3 group allow for electrostatic interaction with uncoordinated Pb2+ ions, which built a robust shield that protected against surrounding moisture as well. In addition, CFBA modification passivates the dangling bonds, enhanced crystallinity, reduced pinholes, improved the surface coverage and compactness, increased hydrophobicity, and decreased non-radiative recombination, leading to high PCE. With optimum concentration of 3 μL-CFBA, CsPbI2Br PSC revealed an impressive PCE of 17.07% with FF of 83.21% as compared to pristine device (PCE of 15.24% with FF of 79.81%). Moreover, champion device showed an excellent thermal stability by retaining ∼ 86.23% of its initial PCE, whereas pristine device maintained ∼ 48.26% of its original PCE after 1440 h aging at 85 ℃ in a dry box without any encapsulation. In addition, optimized PSC showed a decent indoor PCE of 23.24% as compared to pristine device (18.35%) under dim lighting conditions (LED, 3200 K) at 1000 lx. These results suggested that surface passivation strategy with CFBA is a promising approach for developing efficient all-inorganic CsPbI2Br outdoor/indoor PSCs with better thermal stability.

    DOI： 10.1016/j.apsusc.2023.157901

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  • Surface defect passivation of All-Inorganic CsPbI2Br perovskites via fluorinated ionic liquid for efficient Outdoor/Indoor photovoltaics processed in ambient air Reviewed International journal

    Applied Surface Science   2023.11

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  • The acceleration of BODIPY dye-sensitized photocatalytic hydrogen production in aqueous ascorbic acid solutions using alkyl-chain formed second coordination sphere effects

    Xiao-Feng Shen, Motonori Watanabe, Jun Tae Song, Atsushi Takagaki, Tatsuki Abe, Keiji Tanaka, Tatsumi Ishihara

    Journal of Materials Chemistry A   11 ( 39 )   21153 - 21160   2023.10   （ ISSN:2050-7488 eISSN:2050-7496 ）

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    Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    Optimizing hydrogen production in ascorbic acid solutions: enhancing BODIPY dye-sensitized processes through alkyl-chain-enhanced second coordination sphere effects.

    DOI： 10.1039/d3ta03682k

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  • Visible light driven hydrogen peroxide production by oxygen and phosphorus co-doped CoP-C3N4 photocatalyst Reviewed International journal

    Catalysis Today   2023.9

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  • Proton conductivity in Yb-doped BaZrO3-based thin film prepared by pulsed laser deposition Reviewed International journal

    Eiki Niwa, Maksymilian Kluczny, Hyo Young Kim, Jun Tae Song, Motonori Watanabe, Atsushi Takagaki, Tatsumi Ishihara

    SOLID STATE IONICS   396   116240 - 116240   2023.8   （ ISSN:0167-2738 eISSN:1872-7689 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.ssi.2023.116240

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    Repository Public URL： https://hdl.handle.net/2324/7172331

  • Bi/UiO-66-derived electrocatalysts for high CO2-to-formate conversion rate

    Yuta Takaoka, Jun Tae Song, Atsushi Takagaki, Motonori Watanabe, Tatsumi Ishihara

    Applied Catalysis B: Environmental   326   122400 - 122400   2023.6   （ ISSN:0926-3373 eISSN:1873-3883 ）

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    Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.apcatb.2023.122400

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  • A comprehensive study on rational biocatalysts and individual components of photobiocatalytic H2 production systems

    Nuttavut Kosem, Motonori Watanabe, Jun Tae Song, Atsushi Takagaki, Tatsumi Ishihara

    APPLIED CATALYSIS A-GENERAL   651   2023.2   （ ISSN:0926-860X eISSN:1873-3875 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：ELSEVIER  

    Photobiocatalytic system has been developing as a promising approach for H2 production. Herein, the rational characteristics of biocatalysts and the role of individual components affecting the efficiency of the system were investigated. Photocatalytic studies showed that tris (2-amino-2-hydroxymethyl-1,3-propanediol) was an ideal electron donor for viologen reduction by TiO2. Biocatalytic reaction revealed that cell permeability, the redox potential of electron mediators and the cell envelope were crucial to the activity of whole-cell biocatalysts. In photobiocatalytic system, recombinant Escherichia coli with a turnover frequency of 39.43 +/- 3.77 s-1 based on [FeFe]-hydrogenase activity was a more rational biocatalyst than Anabaena variabilis. A comprehensive study found that the presence of TiO2, light and biocatalysts strongly enhanced H2 production, whereas Tris and MV2+ had less influence. A maximum rate was found at 16.73 +/- 1.03 mu mol/min with a solar-to-H2 conversion of 1.58 +/- 0.10 %. Understanding the role of each component will guide the development of high-efficient photobiocatalysis.

    DOI： 10.1016/j.apcata.2022.119019

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  • A comprehensive study on the rational biocatalysts and individual components of photobiocatalytic H2 production system Reviewed International journal

    Nuttavut Kosem, Motonori Watanabe, Jun Tae Song, Atsushi Takagaki, Tatsumi Ishihara

    Applied Catalysis A: General   651   1190195   2023.2

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  • Pyridyl anchoring squaraine as a near-infrared dye sensitizer for effective sensitized hydrogen production over a titanium dioxide photocatalyst in water medium Invited Reviewed International journal

    Xiao-Feng Shen, Motonori Watanabe, Atsushi Takagaki, Jun Tae Song, Tatsuki Abe, Daisuke Kawaguchi, Keiji Tanaka, Tatsumi Ishihara

    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING   129 ( 1 )   2023.1   （ ISSN:0947-8396 eISSN:1432-0630 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

    DOI： 10.1007/s00339-022-06281-7

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    Other Link： https://link.springer.com/article/10.1007/s00339-022-06281-7/fulltext.html

  • Introduction of tensile strain into titanium dioxide for increased solid acid catalytic activity

    Atsushi Takagaki, Taiga Ozaki, Jun Tae Song, Eiki Niwa, Motonori Watanabe, Tatsumi Ishihara

    Catalysis Science &amp; Technology   12 ( 21 )   6359 - 6362   2022.10   （ ISSN:2044-4753 eISSN:2044-4761 ）

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    Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    Intentionally introducing tensile strain into TiO<sub>2</sub> by using a spark plasma sintering process could stabilize reduced Ti species and improve the solid acid activity for acetalization.

    DOI： 10.1039/d2cy00736c

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  • Particle Size Effect on Hydrogen Cyanide Synthesis with CH<sub>4</sub> and NO over an Alumina-supported Platinum Catalyst

    YAMASAKI Tatsuya, TAKAGAKI Atsushi, SHISHIDO Tetsuya, BANDO Kyoko K., KODAIRA Tetsuya, MURAKAMI Junichi, SONG Jun Tae, NIWA Eiki, WATANABE Motonori, ISHIHARA Tatsumi

    Journal of the Japan Petroleum Institute   65 ( 5 )   184 - 191   2022.9   （ ISSN:13468804 eISSN:1349273X ）

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    Language：Japanese   Publisher：The Japan Petroleum Institute  

    <p>The particle size effect of platinum nanoparticles on the conversion of methane (CH<sub>4</sub>) into hydrogen cyanide (HCN) using nitric oxide (NO) as an oxidant over the Pt supported (γ + θ)-alumina was investigated. The Pt catalysts with various average particle size in the range of 1.6 to 4.1 nm were obtained by controlling the loading amount and calcination temperature. Amount of the Pt surface sites was determined by CO titration using a pulse method and the catalytic activity was evaluated under same contact time. In case of the catalysts having small particle size (1.6-3.2 nm) of Pt, NO conversion was lower than the large one. The catalysts having large particle size (4.1-4.2 nm) exhibited high selectivity of HCN reaching 53.5 % at 1.3 % C-based yield at 400 °C over 10 wt% Pt/Al<sub>2</sub>O<sub>3</sub>. One of the reasons for higher activity with the larger Pt particles is suppression of the sequential reaction of HCN to carbon dioxide and ammonia which likely proceeded at the interface between metal and support. Pt L<sub>3</sub>-edge X-ray adsorption fine structure (XAFS) spectra showed that the small particle catalysts were covered with Pt–CN species after the reaction test. In contrast, Pt–CO was observed as main adsorbed species on the large particle catalysts, suggesting that HCN desorption process was facile for the larger Pt particle case.</p>

    DOI： 10.1627/jpi.65.184

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  • Sequential-infiltration of Ce and Ni in NiO-YSZ fuel electrode for tubular type solid oxide reversible cells (SORC) using LaGaO3 electrolyte film Invited Reviewed International journal

    Tatsumi Ishihara, Zhe Tan, Jun Tae Song, Atsushi Takagaki

    SOLID STATE IONICS   379   2022.6   （ ISSN:0167-2738 eISSN:1872-7689 ）

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    Language：English   Publishing type：Research paper (scientific journal)  

    NiO-Y2O3 stabilized ZrO2 (YSZ) tubular type cell using La0.9Sr0.1Ga0.8Mg0.2O3−δ electrolyte film was prepared by dip-coating method. Effects of Ce infiltration or Ce, Ni sequential-infiltration into NiO-YSZ substrate were studied and it was found that Ce infiltration after Ni is highly effective for increasing the cell performance and the stability in fuel cell and electrolysis mode at 873 K in spite of decrease in performance by simple Ni infiltration. Cyclic operation of the fuel cell and electrolysis of LSGM tubular cell using Ce or Ce[sbnd]Ni sequential-infiltrated NiO-YSZ substrate was measured at 873 K using 17% steam-25%H2 in Ar as fuel. After 100 cycles at ±0.1 A cm−2, OCV was almost the same with the initial value. The terminal potential in SOFC operation became slightly lower with increasing cycle number in case of simple Ce infiltration. The main reason for degradation during cyclic performance seems to be assigned to the increased fuel electrode overpotential. However, degradation rate is much decreased by Ce[sbnd]Ni sequential-infiltration.

    DOI： 10.1016/j.ssi.2022.115914

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  • Mixing nitrogen-containing compounds for synthesis of porous boron nitride for improved porosity, surface functionality, and solid base catalytic activity Reviewed International journal

    Atsushi Takagaki, Shohei Nakamura, Shu Ashimura, Masaaki Yoshida, Jun Tae Song, Motonori Watanabe, Shigenobu Hayashi, Tatsumi Ishihara

    APPLIED CATALYSIS A-GENERAL   638   118635 - 118635   2022.5   （ ISSN:0926-860X eISSN:1873-3875 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.apcata.2022.118635

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  • Sillén–Aurivillius phase bismuth niobium oxychloride, Bi4NbO8Cl, as a new oxide-ion conductor Reviewed International journal

    Maksymilian Kluczny, Jun Tae Song, Taner Akbay, Eiki Niwa, Atsushi Takagaki, Tatsumi Ishihara

    Journal of Materials Chemistry A   10 ( 5 )   2550 - 2558   2022.3   （ ISSN:2050-7488 eISSN:2050-7496 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Royal Society of Chemistry (RSC)  

    Fast oxide-ion conductivity in Bi<sub>3.9</sub>Sr<sub>0.1</sub>NbO<sub>8−<italic>δ</italic></sub>Cl is reported for the first time, and this oxide is stable under a reducing atmosphere.

    DOI： 10.1039/d1ta07335d

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  • Back-channel etched In-Ga-Zn-O Thin-film Transistor utilizing Selective Wet-Etching of Copper Source and Drain Reviewed International journal

    Rauf Khan, Muhamad Affiq Bin Misran, Michitaka Ohtaki, Jun Tae Song, Tatsumi Ishihara, Reiji Hattori

    Processes   2021.12

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Synthetic multiscale design of nanostructured Ni single atom catalyst for superior CO2 electroreduction

    Gyoung Hwa Jeong, Ying Chuan Tan, Jun Tae Song, Gil-Yong Lee, Ho Jin Lee, Jaewoong Lim, Hu Young Jeong, Somi Won, Jihun Oh, Sang Ouk Kim

    Chemical Engineering Journal   426   131063 - 131063   2021.12

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    Language：Others   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.cej.2021.131063

  • PrBaCo2O5+δ-Sm0.5Sr0.5CoO3 Composite Oxide as Active Cathode for Intermediate-Temperature Solid Oxide Fuel Cells Reviewed International journal

    103   1425   2021.8

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    Language：English   Publishing type：Research paper (scientific journal)  

  • Ruthenium(iv) N-confused porphyrin μ-oxo-bridged dimers: acid-responsive molecular rotors Reviewed International journal

    11   24575   2021.7

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  • Tensile strain for band engineering of SrTiO3 for increasing photocatalytic activity to water splitting

    Yoonyoung Kim, Motonori Watanabe, Junko Matsuda, Jun Tae Song, Atsushi Takagaki, Aleksandar Staykov, Tatsumi Ishihara

    APPLIED CATALYSIS B-ENVIRONMENTAL   278   2020.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apcatb.2020.119292

  • Enhancement of solid base activity for porous boron nitride catalysts by controlling active structure using post treatment

    Atsushi Takagaki, Shohei Nakamura, Motonori Watanabe, Yoonyoung Kim, Jun Tae Song, Keiko Jimura, Kanta Yamada, Masaaki Yoshida, Shigenobu Hayashi, Tatsumi Ishihara

    Applied Catalysis A: General   608   117843 - 117843   2020.11

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    Language：Others   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apcata.2020.117843

  • Activation of C2H4 reaction pathways in electrochemical CO2 reduction under low CO2 partial pressure Reviewed

    Hakhyeon Song, Jun Tae Song, Beomil Kim, Ying Chuan Tan, Jihun Oh

    APPLIED CATALYSIS B-ENVIRONMENTAL   272   2020.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apcatb.2020.119049

  • Facile electrochemical synthesis of dilute AuCu alloy nanostructures for selective and long-term stable CO2 electrolysis Reviewed

    Jaehoon Kim, Jun Tae Song, Jihun Oh

    JOURNAL OF CHEMICAL PHYSICS   153 ( 5 )   2020.8

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1063/5.0009340

  • Synthesis of a Nickel Single-Atom Catalyst Based on Ni–N4–xCx Active Sites for Highly Efficient CO2 Reduction Utilizing a Gas Diffusion Electrode Reviewed

    3   8739   2020.8

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    Language：Others  

  • Scandium and copper co-doping effect on stability and activity to the NO direct decomposition of Ba3Y4O9 Reviewed

    Siman Fang, Atsushi Takagaki, Motonori Watanabe, Jun Tae Song, Tatsumi Ishihara

    APPLIED CATALYSIS A-GENERAL   602   2020.7

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apcata.2020.117743

  • Pyridyl-Anchored Type BODIPY Sensitizer-TiO2 Photocatalyst for Enhanced Visible Light-Driven Photocatalytic Hydrogen Production Reviewed

    Xiao-Feng Shen, Motonori Watanabe, Atsushi Takagaki, Jun Tae Song, Tatsumi Ishihara

    CATALYSTS   10 ( 5 )   2020.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.3390/catal10050535

  • Energy-resolved distribution of electron traps for O/S-doped carbon nitrides by reversed double-beam photoacoustic spectroscopy and the photocatalytic reduction of Cr(vi) Reviewed

    Chitiphon Chuaicham, Sekar Karthikeyan, Radheshyam R. Pawar, Yihuang Xiong, Ismaila Dabo, Bunsho Ohtani, Yoonyoung Kim, Jun Tae Song, Tatsumi Ishihara, Keiko Sasaki

    CHEMICAL COMMUNICATIONS   56 ( 26 )   3793 - 3796   2020.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/c9cc09988c

  • Hierarchically porous Au nanostructures with interconnected channels for efficient mass transport in electrocatalytic CO2 reduction Reviewed

    Gayea Hyun, Jun Tae Song, Changui Ahn, Youngjin Ham, Donghwi Cho, Jihun Oh, Seokwoo Jeon

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   117 ( 11 )   5680 - 5685   2020.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1073/pnas.1918837117

  • Over a 15.9% Solar-to-CO Conversion from Dilute CO2 Streams Catalyzed by Gold Nanoclusters Exhibiting a High CO2 Binding Affinity Reviewed

    Beomil Kim, Hoeun Seong, Jun Tae Song, Kyuju Kwak, Hakhyeon Song, Ying Chuan Tan, Gibeom Park, Dongil Lee, Jihun Oh

    ACS ENERGY LETTERS   5 ( 3 )   749 - 757   2020.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsenergylett.9b02511

  • Importance of ZnTiO3 Phase in ZnTi-Mixed Metal Oxide Photocatalysts Derived from Layered Double Hydroxide Reviewed

    Chitiphon Chuaicham, Sekar Karthikeyan, Jun Tae Song, Tatsumi Ishihara, Bunsho Ohtani, Keiko Sasaki

    ACS APPLIED MATERIALS & INTERFACES   12 ( 8 )   9169 - 9180   2020.2

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsami.9b18785

  • Towards Higher Rate Electrochemical CO2 Conversion: From Liquid-Phase to Gas-Phase Systems Reviewed

    Jun Tae Song, Hakhyeon Song, Beomil Kim, Jihun Oh

    CATALYSTS   9 ( 3 )   2019.3

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    Language：English  

    DOI： 10.3390/catal9030224

  • High-Pressure Evaporation-Based Nanoporous Black Sn for Enhanced Performance of Lithium-Ion Battery Anodes Reviewed

    Sangwoo Ryu, Hyung Cheoul Shim, Jun Tae Song, Ilhwan Kim, Hyewon Ryoo, Seungmin Hyun, Jihun Oh

    PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION   36 ( 1 )   2019.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/ppsc.201800331

  • Hole-Selective CoOx/SiOx/Si Heterojunctions for Photoelectrochemical Water Splitting Reviewed

    Seungtaeg Oh, Soonyoung Jung, Yong Hwan Lee, Jun Tae Song, Tae Hyun Kim, Dip K. Nandi, Soo-Hyun Kim, Jihun Oh

    ACS CATALYSIS   8 ( 10 )   9755 - 9764   2018.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acscatal.8b03520

  • Effect of mass transfer and kinetics in ordered Cu-mesostructures for electrochemical CO2 reduction Reviewed

    Hakhyeon Song, Mintaek Im, Jun Tae Song, Jung-Ae Lim, Beom-Sik Kim, Youngkook Kwon, Sangwoo Ryu, Jihun Oh

    APPLIED CATALYSIS B-ENVIRONMENTAL   232   391 - 396   2018.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apcatb.2018.03.071

  • Morphology-controlled Au nanostructures for efficient and selective electrochemical CO2 reduction Reviewed

    Jaehoon Kim, Jun Tae Song, Hyewon Ryoo, Jin-Gyu Kim, Sung-Yoon Chung, Jihun Oh

    JOURNAL OF MATERIALS CHEMISTRY A   6 ( 12 )   5119 - 5128   2018.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/c8ta01010b

  • Enhanced catalytic activity for CO oxidation by the metal-oxide perimeter of TiO2/nanostructured Au inverse catalysts Reviewed

    Si Woo Lee, Jun Tae Song, Jaehoon Kim, Jihun Oh, Jeong Young Park

    NANOSCALE   10 ( 8 )   3911 - 3917   2018.2

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/c7nr08168e

  • The Role of Adsorbed CN and CI on an Au Electrode for Electrochemical CO2 Reduction Reviewed

    Minhyung Cho, Jun Tae Song, Seoin Back, Yousung Jung, Jihun Oh

    ACS CATALYSIS   8 ( 2 )   1178 - 1185   2018.2

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acscatal.7b03449

  • Silver Nanowire/Carbon Sheet Composites for Electrochemical Syngas Generation with Tunable H-2/CO Ratios Reviewed

    Minhyung Cho, Ji-Won Seo, Jun Tae Song, Jung-Yong Lee, Jihun Oh

    ACS OMEGA   2 ( 7 )   3441 - 3446   2017.7

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1021/acsomega.7b00846

  • Atomic layer deposited molybdenum disulfide on Si photocathodes for highly efficient photoelectrochemical water reduction reaction Reviewed

    Seungtaeg Oh, Jun Beom Kim, Jun Tae Song, Jihun Oh, Soo-Hyun Kim

    JOURNAL OF MATERIALS CHEMISTRY A   5 ( 7 )   3304 - 3310   2017.2

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1039/c6ta10707a

  • Nanoporous Au Thin Films on Si Photoelectrodes for Selective and Efficient Photoelectrochemical CO2 Reduction Reviewed

    Jun Tae Song, Hyewon Ryoo, Minhyung Cho, Jaehoon Kim, Jin-Gyu Kim, Sung-Yoon Chung, Jihun Oh

    ADVANCED ENERGY MATERIALS   7 ( 3 )   2017.2

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1002/aenm.201601103

  • Interfacial band-edge engineered TiO2 protection layer on Cu2O photocathodes for efficient water reduction reaction Reviewed

    Jaesuk Choi, Jun Tae Song, Ho Seong Jang, Min-Jae Choi, Dong Min Sim, Soonmin Yim, Hunhee Lim, Yeon Sik Jung, Jihun Oh

    ELECTRONIC MATERIALS LETTERS   13 ( 1 )   57 - 65   2017.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/s13391-017-6316-1

  • Photoelectrochemical CO2 reduction on 3C-SiC photoanode in aqueous solution Reviewed

    Jun Tae Song, Takayuki Iwasaki, Mutsuko Hatano

    JAPANESE JOURNAL OF APPLIED PHYSICS   54 ( 4 )   2015.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.7567/JJAP.54.04DR05

  • Pt co-catalyst effect on photoelectrochemical properties of 3C-SiC photo-anode Reviewed

    Jun Tae Song, Takayuki Iwasaki, Mutsuko Hatano

    JAPANESE JOURNAL OF APPLIED PHYSICS   53 ( 5 )   2014.5

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.7567/JJAP.53.05FZ04

  • Improved visible light driven photoelectrochemical properties of 3C-SiC semiconductor with Pt nanoparticles for hydrogen generation Reviewed

    Jun Tae Song, Hisanori Mashiko, Masayuki Kamiya, Yoshifumi Nakamine, Akira Ohtomo, Takayuki Iwasaki, Mutsuko Hatano

    APPLIED PHYSICS LETTERS   103 ( 21 )   2013.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1063/1.4832333

  • Square-Patterned Narrow-Band Infrared Emitter for Filter Less Infrared Gas Sensor Reviewed

    Jun Tae Song, Joong Hee Park, June Kyoo Lee, Ju Chan Choi, Seong Ho Kong

    JAPANESE JOURNAL OF APPLIED PHYSICS   51 ( 6 )   2012.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1143/JJAP.51.06FL18

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Presentations

  • The effect of Zr on Bi electrocatalyst for enhancing CO2 conversion to formic acid

    @Jun Tae Song,#Yuta Takaoka, @Motonori Watanabe, @Tatsumi Ishihara

    2024.3 

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    Event date： 2024.4

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  • Synergistic Integration of Zr-MOF (UiO-66) and Bi Electrocatalysts for Enhanced CO2 Conversion to Formate International conference

    @Jun Tae Song, #Yuta Takaoka, @Atsushi Takagaki, @Motonori Watanabe, @Tatsumi Ishihara

    244th ECS meeting  2024.10 

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    Event date： 2024.4

    Language：English   Presentation type：Oral presentation (general)  

    Country：Sweden  

  • The effect of Zr on Bi electrocatalyst for enhancing CO2 conversion to formic acid Invited International conference

    @Jun Tae Song,#Yuta Takaoka, @Atsushi Takagaki, @Motonori Watanabe, @Tatsumi Ishihara

    NTU-KU Joint Symposium  2023.12 

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    Event date： 2024.4

    Language：English   Presentation type：Oral presentation (general)  

    Country：Taiwan, Province of China  

  • Bi/UiO-66を前駆体とした電極触媒を用いたCO2電解によるギ酸生成

    #髙岡祐太、@Song Jun Tae、@渡邊 源規、@高垣 敦、@石原 達己

    2022電気化学会秋季大会  2022.9 

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    Event date： 2023.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：神奈川大学   Country：Japan  

  • Boosting CO2 conversion rate via Bi/UiO-66-derived electrocatalysts International conference

    #Yuta Takaoka, @Jun Tae Song, @Motonori Watanabe, @Atsushi Takagaki, @Tatsumi Ishihara

    19th Korea-Japan Symposium on Catalysis (KJSC)  2023.5 

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    Event date： 2023.5

    Language：English   Presentation type：Oral presentation (general)  

    Country：Korea, Republic of  

  • The effect of Zr hydroxide on Bi electrocatalysts for CO2 conversion to formate International conference

    @Jun Tae Song, #Yuta Takaoka, @Motonori Watanabe, @Atsushi Takagaki, @Tatsumi Ishihara

    19th Korea-Japan Symposium on Catalysis (KJSC)  2023.5 

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    Event date： 2023.5

    Language：English   Presentation type：Oral presentation (general)  

    Country：Korea, Republic of  

  • Bi担持UiO-66を用いる電気化学的CO2還元反応によるギ酸合成

    #髙岡 祐太, @Song Jun Tae，　@渡邊 源規,　@高垣 敦，　@石原 達己

    電気化学会  2022.3 

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    Event date： 2022.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：オンライン   Country：Japan  

  • Bi担持MOFを用いた二酸化炭素還元反応によるギ酸合成

    #髙岡 祐太, @Song Jun Tae, @高垣 敦, @渡邊 源規, @石原 達己

    触媒討論会  2022.3 

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    Event date： 2022.6

    Language：Japanese  

    Venue：オンライン   Country：Japan  

  • Nanostructured Electrocatalysts for Electrochemical CO2 Conversion Invited International conference

    Jun Tae Song

    SNU-KYUSHU Joint Symposium  2021.6 

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    Event date： 2021.6

    Language：English   Presentation type：Symposium, workshop panel (public)  

    Country：Korea, Republic of  

  • Electrochemical CO2 conversion with Au nanostructures

    Jun Tae Song

    MPD &EEC Joint Retreat 2020  2020.2 

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    Language：English  

    Country：Japan  

  • Facile Electrochemical Strategy for Au Nanostructure Catalysts for Electroreduction of CO2

    Jun Tae Song, Jihun Oh

    2019.11 

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    Language：Japanese  

    Country：Japan  

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Industrial property rights

Patent   Number of applications: 1   Number of registrations: 0
Utility model   Number of applications: 0   Number of registrations: 0
Design   Number of applications: 0   Number of registrations: 0
Trademark   Number of applications: 0   Number of registrations: 0

Professional Memberships

  • The Electrochemical Society of Japan

  • Catalysis of Japan

Academic Activities

  • Screening of academic papers

    Role(s)： Peer review

    2023

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：7

  • Screening of academic papers

    Role(s)： Peer review

    2022

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：1

  • Screening of academic papers

    Role(s)： Peer review

    2021

    　More details

    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：3

  • Screening of academic papers

    Role(s)： Peer review

    2020

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    Type：Peer review 

    Number of peer-reviewed articles in foreign language journals：8

Research Projects

  • 三重項状態利用を増進する広帯領域増感色素の開拓と光電気水分解デバイスへの応用

    Grant number：24H00486  2024.4 - 2028.3

    科学研究費助成事業  基盤研究(A)

    渡邊 源規, Song Juntae, 松島 敏則

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    Grant type：Scientific research funding

    本研究は従来のスピン軌道相互作用により生成した三重項状態を触媒利用する分子に、禁制遷移によって基底状態から直接三重項を利用する発色団を組み込み、三重項状態利用確率を増進させる。本色素を無機触媒に増感色素として組み込み、色素の可視‐近赤外光領域において幅広く増感する、光電極を開発する。三重項状態は酸素で失活するため、光電極に本色素を組み込み触媒的酸素発生サイトと三重項状態を隔絶することで克服する。

    CiNii Research

  • CO2からマルチカーボン化合物合成に向けた革新的Ni-Carbon電気触媒構造の開発

    Grant number：24K08580  2024 - 2026

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    Song Juntae

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    Authorship：Principal investigator  Grant type：Scientific research funding

    本研究では安価なNi触媒を用いて, より低い過電圧で選択的にマルチカーボン物質を生成する革新的な電極構造の開発を目指す. 具体的にはNi-NCサイトとNi-Oサイトの総合作用を制御できる電極構造を設計する. また, 安定性向上やメカニズムの糾明にも取り組む予定である. これによって現在6.5％程度のマルチカーボン生成の効率をC-C couplingが起こるNiサイトの条件を明らかにでき, マルチカーボン生成技術に大きく寄与することが期待される.

    CiNii Research

  • 高効率な太陽光水分解に向けたタンデム構造光電極デバイスの開発

    2023

    科学研究費助成事業  西部ガス助成金

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    Authorship：Principal investigator  Grant type：Competitive funding other than Grants-in-Aid for Scientific Research

  • Innovative and efficient materials conversion by bio-inorganic photocatalyst

    Grant number：21K18213  2021.7 - 2024.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Pioneering)

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    Grant type：Scientific research funding

    CiNii Research

  • Systematic heterogeneous design of Cu catalysts for CO2 electroreduction towards highly value-added products

    Grant number：21K14721  2021 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Early-Career Scientists

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    Authorship：Principal investigator  Grant type：Scientific research funding

    CiNii Research

  • Bio-inorganic hybrid photoelectrochemical system for highly efficient water-splitting

    2021 - 2022

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    Authorship：Principal investigator  Grant type：On-campus funds, funds, etc.

  • Discovering Inexpensive, Effective Novel Catalysts for Electrochemical CO2 Conversion: Towards Value-Added Chemical Production

    Grant number：21  2020 - 2022

    Grants-in-Aid for Scientific Research 

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    Authorship：Principal investigator  Grant type：Competitive funding other than Grants-in-Aid for Scientific Research

  • The development of highly porous and visible-light absorbing photoelectrode for photoelectrochemical water-splitting

    2020 - 2021

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    Authorship：Principal investigator  Grant type：On-campus funds, funds, etc.

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Educational Activities

  • Taking charge of experimental classes in applied chemistry

Class subject

  • 物質科学工学実験第1

    2022.10 - 2023.3   Second semester

  • 専門英語

    2022.10 - 2023.3   Second semester

  • 物質科学工学実験第3

    2022.10 - 2023.3   Second semester

  • Experiment in Applied Chemistry I

    2022.10 - 2022.12   Fall quarter

  • Experiment in Applied Chemistry II

    2022.4 - 2022.6   Spring quarter

  • 物質科学工学実験第1

    2021.10 - 2022.3   Second semester

  • 専門英語

    2021.10 - 2022.3   Second semester

  • 物質科学工学実験第3

    2021.10 - 2022.3   Second semester

  • Experiment in Applied Chemistry I

    2021.10 - 2021.12   Fall quarter

  • Experiment in Applied Chemistry II

    2021.4 - 2021.6   Spring quarter

  • 物質科学工学実験第1

    2020.10 - 2021.3   Second semester

  • 専門英語

    2020.10 - 2021.3   Second semester

  • 物質科学工学実験第3

    2020.10 - 2021.3   Second semester

  • Experiment in Applied Chemistry I

    2020.10 - 2020.12   Fall quarter

  • Experiment in Applied Chemistry II

    2020.4 - 2020.6   Spring quarter

  • 物質科学工学実験第3

    2019.12 - 2020.2   Winter quarter

  • 専門英語

    2019.10 - 2020.3   Second semester

  • 物質科学工学実験第1

    2019.10 - 2019.12   Fall quarter

  • Experiment in Applied Chesmitry I

    2019.10 - 2019.12   Fall quarter

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