研究者詳細

顔写真

ガラブドルジ　バトニヤクト
Garavdorj Batnyagt
Garavdorj Batnyagt
所属
国際放射光イノベーション・スマート研究センター　放射光次世代計測科学連携研究部門
職名
特任助教（研究）
学位

  • 博士（理工学）（岩手大学）

  • 修士（理工学）（岩手大学）

e-Rad 研究者番号
61034723

学歴 4

  • 岩手大学大学院　理工学研究科、　自然・応用科学専攻

    2020年4月 ～ 2025年9月

  • 岩手大学大学院　総合科学研究科　物資化学コース

    2017年10月 ～ 2019年9月

  • 岩手大学　理工学研究科、フロンティア材料機能工学専攻、研究生

    2016年10月 ～ 2017年3月

  • モンゴル国立大学　化学部

    2011年9月 ～ 2015年6月

委員歴 1

  • 公益社団法人電気化学会　個人会員

    2021年10月 ～ 継続中

研究分野 1

  • ものづくり技術（機械・電気電子・化学工学） / 触媒プロセス、資源化学プロセス /

論文 9

  1. Synthesis and Performance Evaluation of Pt–M Fine Nanoparticles on High‐Surface‐Area Carbon Support for Enhanced Oxygen Reduction Reaction Activity in PEFC

    Garavdorj Batnyagt, Waka Nagano, Hidenobu Wakita, Koichi Ui, Tatsuya Takeguchi

    Energy Technology　2025年11月

    DOI： 10.1002/ente.202500393 　

  2. Correlation between Surface Pt-Ru Bonding and CO Tolerance of PtRu/C PEFC Anode Catalysts Prepared Using a Relatively Large Surface Area Carbon Support

    Tatsuya Takeguchi, Pongtorn Dhupatemiya, Napan Narischat, Garavdorj Batnyagt, Thidarat Wongsawa, Shin R. Mukai

    Catalysis Letters　2025年10月

    DOI： 10.1007/s10562-025-05177-4 　

  3. ORR durability study on Pt3.7Mn/KB, Pt3.9Co/KB and Pt3.7Ni/KB for heavy-duty vehicle operation

    Galindev Oyunbileg, Garavdorj Batnyagt, Waka Nagano, Hidenobu Wakita, Koichi Ui, Tatsuya Takeguchi

    Energy Advances　2025年6月20日

    DOI： 10.1039/d5ya00059a 　

    ISSN：2753-1457

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    <jats:p>Since durability is a key challenge for the use of robust catalysts in fuel cell systems for heavy-duty vehicles (HDV, a durability target of 50 000 h) applications, the durability of various core–shell Pt-based alloy catalysts is evaluated.</jats:p>

  4. Effect of Annealing Time on Various PtNi/C Binary Alloy Catalysts for ORR in PEFCs

    Kazuki Yamaguchi, Batnyagt Garavdorj, Hidenobu Wakita, Koichi Ui, Tatsuya Takeguchi

    ECS Transactions　2024年9月27日

    DOI： 10.1149/11405.0013ecst 　

    ISSN：1938-5862 1938-6737

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    <jats:p>Polymer electrolyte fuel cells (PEFCs) are used in automotive power supplies due to their advantages of low environmental impact and high energy conversion efficiency. However, Pt used for electrocatalysts is expensive and its activity and durability are problematic. In this study, the PtNi/C catalysts were prepared with different annealing times and the oxygen reduction reaction activity was evaluated. The linear sweep voltammograms and current-voltage curves showed that the PtNi/C catalysts annealing time for 60 min performed better than the commercial catalyst. This would be attributed to the internal alloying of Ni and better electronic structure due to the longer annealing time.</jats:p>

  5. Relationship between synthesis conditions and ORR activity of PtCo nanowire/C catalysts for PEFC cathodes

    Kousuke Shibata, Tatsuya Takeguchi, Hidenobu Wakita, Koichi Ui, Batnyagt Garavdorj

    ECS Transactions　2024年9月27日

    DOI： 10.1149/11405.0021ecst 　

    ISSN：1938-5862 1938-6737

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    <jats:p>Nanowire (NW) structures have attracted attention as durable catalysts for the oxygen reduction reaction (ORR) due to their resistance to aggregation, unique morphology, and efficient electron conduction. However, NWs often suffer from limited structural stability, and there is a lack of research on their performance in membrane electrode assembly (MEA) studies. In this study, PtCo NW/C catalysts with various amounts of oleylamine (OAm) were prepared, and their oxygen reduction reaction (ORR) activity and durability were investigated by MEA and RDE testing conditions. XRD analysis and TEM observations showed that the prepared PtCo NWs were successfully alloyed,and PtCo NW alloys were observed. CV and LSV results showed that the PtCo NW/C OAm100 catalyst with 2 h of acid treatment had the best ORR activity. The I-V test results demonstrated that the PtCo NW/C OAm100 catalyst with 2 h of acid treatment had higher cell voltage, and cell performance was also excellent. It was found that the ORR activity of PtCo NW was improved by adding the appropriate amount of OAm.</jats:p>

  6. The Development of Uniform-Sized Pt-Based Binary Alloy Electrocatalysts for ORR in Polymer Electrolyte Fuel Cells

    Batnyagt Garavdorj, Oyunbileg Galindev, Hidenobu Wakita, Koichi Ui, Tatsuya Takeguchi

    ECS Transactions　2024年9月27日

    DOI： 10.1149/11405.0057ecst 　

  7. Synthesis of catalysts with fine platinum particles supported by high-surface-area activated carbons and optimization of their catalytic activities for polymer electrolyte fuel cells

    Md. Mijanur Rahman, Kenta Inaba, Garavdorj Batnyagt, Masato Saikawa, Yoshiki Kato, Rina Awata, Byambasuren Delgertsetsega, Yasuo Kaneta, Kotaro Higashi, Tomoya Uruga, Yasuhiro Iwasawa, Koichi Ui, Tatsuya Takeguchi

    RSC Advances　2021年6月8日

    DOI： 10.1039/d1ra02156g 　

    ISSN：2046-2069

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    <p>Herein, we demonstrated that carbon-supported platinum (Pt/C) is a low-cost and high-performance electrocatalyst for polymer electrolyte fuel cells (PEFCs).</p>

  8. Development of Catalyst with Optimum Calcination Temperature for the Application of Zinc-Air Battery

    Yoshiki Kato, Md Mijanur Rahman, Masato Saikawa, Rina Awata, Yuji Ono, Garavdorj Batnyagt, Byambasuren Delgertsetsega, Tatsuya Takeguchi

    ECS Transactions　2021年5月7日

    DOI： 10.1149/10205.0029ecst 　

    ISSN：1938-5862 1938-6737

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    <jats:p>Zinc-air batteries (ZABs) have several challenges that hamper large-scale commercialization because of cost, charge/discharge performance of the cathode catalyst. To overcome these problems, perovskite oxides such as LaSr<jats:sub>3</jats:sub>Fe<jats:sub>3</jats:sub>O<jats:sub>10</jats:sub> (LSFCO) catalysts, were prepared using the complex polymerization synthesis method to investigate the relationship between catalyst activity and calcination temperature. The particle diameter of the prepared LSFCO catalysts and the crystalline structure of the perovskite samples were increased with increasing calcination temperature. In the case of 1400ºC, the highest catalytic activity of the LSFCO catalyst was derived from CV analyses and the constant current charge/discharge measurement for ZABs. It is suggested that the high catalytic activity of the LSFCO catalyst can be obtained by providing a high calcination temperature with larger particles.</jats:p>

  9. Synthesis and electrocatalytic activity towards oxygen reduction reaction of gold-nanostars

    Oyunbileg G, Batnyagt G, Enkhsaruul B, T Takeguchi

    Mongolian Journal of Chemistry　2018年2月13日

    DOI： 10.5564/mjc.v18i44.935 　

    ISSN：2414-0082 2226-6739

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    <jats:p>The oxygen reduction reaction (ORR) is a characteristic reaction which determines the performance of fuel cells which convert a chemical energy into an electrical energy. Aims of this study are to synthesize Au-based nanostars (AuNSs) and determine their preliminary electro-catalytic activities towards ORR by a rotating-disk electrode method in alkaline electrolyte. The images obtained from a scanning electron microscope (SEM) and a transmission electron microscope (TEM) analyses confirm the formation of the star-shaped nanoparticles. Among the investigated nanostar catalysts, an AuNS5 with smaller size and a few branches showed the higher electrocatalytic activity towards ORR than other catalysts with a bigger size. In addition, the electron numbers transferred for all the catalysts are approximately two. The present study results infer that the size of the Au-based nanostars may influence greatly on their catalytic activity. The present study results show that the further improvement is needed for Au-based nanostar catalysts towards the ORR reaction.</jats:p>

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講演・口頭発表等 10

  1. The Development of Uniform-Sized Pt-Based Binary Alloy Electrocatalysts for ORR in Polymer Electrolyte Fuel Cells

    Garavdorj Batnyagt, Galindev Oyunbileg, Hidenobu Wakita, Koichi Ui, and Tatsuya Takeguchi

    PRiME 2024, 9th Joint Meeting with ECS　2024年10月8日

  2. Correlation Between Platinum Loading and ORR Activity of PtCo Nanoparticles on Acetylene Black Carbon Supports

    Tabassum Hasnat Reshmi, Tatsuya Takeguchi, Garavdorj Batnyagt, Koichi Ui

    第66回電池討論会　2025年11月20日

  3. PEFC用Ti4O7-C担体担持カソード触媒のORR活性と耐久性における合成条件の最適化

    住山 瑠基、竹口 竜弥、Batnyagt Garavdorj、宇井 幸一

    第66回電池討論会　2025年11月20日

  4. 高比表面積炭素担体に担持させたPtNi ナノワイヤー触媒の電気化学的特性評価とPt担持量の最適化

    佐藤応介、竹口 竜弥、Garavdorj Batnyagt、宇井幸一

    第66回電池討論会　2025年11月20日

  5. Improvement in uniformly distributed Pt-based binary alloy catalysts towards the oxygen reduction reaction in polymer electrolyte fuel cells

    Garavdorj Batnyagt, Hidenobu Wakita, Koichi Ui, and Tatsuya Takeguchi

    電気化学会第91回大会　2024年3月14日

  6. Durability and Performance of Pt-M Nanowires as Cathode Catalyst under MEA Stack Conditions

    Garavdorj Batnyagt, Hidenobu Wakita, Koichi Ui, and Tatsuya Takeguchi

    第64回電池討論会　2023年11月28日

  7. Durability and Performance of Pt-M Nanowires as Cathode Catalysts under PEFC Operating Conditions

    Garavdorj Batnyagt, Takumi Yoshida, Hidenobu Wakita, Koichi Ui, and Tatsuya Takeguchi

    電気化学会第90回大会　2023年3月29日

  8. Improved Activity of High Surface Area Pt-Based Nanowires as Cathode Catalysts under PEFC Operating Conditions

    Garavdorj Batnyagt, Takumi Yoshida, Masato Saikawa, Md. Mijanur Rahman, Hidenobu Wakita, and Tatsuya Takeguchi

    33rd Topical Meeting of the International Society of Electrochemistry　2022年11月27日

  9. Oxygen reduction reaction activity of Pt-Ni alloy nanowire catalyst supported on high surface area carbon

    Garavdorj Batnyagt, Takumi Yoshida, Masato Saikawa, Md. Mijanur Rahman, Koichi Ui, and Tatsuya Takeguchi

    電気化学会第89回大会　2022年3月17日

  10. Electrocatalytic activity for the oxygen reduction reaction of PtCo-M/C nanoparticles with enhanced ECSA

    Garavdorj Batnyagt, Tatsuya Takeguchi, and Koichi Ui

    平成30年度 化学系学協会東北大会　2019年9月21日

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