Activation and its mechanism of oxygen evolution reaction catalysts by unusual valence iron ions
| Project/Area Number |
15H04169
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | The University of Tokyo (2016-2017)
Osaka Prefecture University (2015) |
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Principal Investigator |
Yagi Shunsuke 東京大学, 生産技術研究所, 准教授 (60452273)
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| Co-Investigator(Kenkyū-buntansha) |
梅澤 直人 国立研究開発法人物質・材料研究機構, 光触媒材料センター, 主任研究員 (20455273)
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| Co-Investigator(Renkei-kenkyūsha) |
YAMADA Ikuya 大阪府立大学, 大学院工学研究科 物質・化学系専攻 マテリアル工学分野, 准教授 (30378880)
IKENO Hidekazu 大阪府立大学, 研究推進機構, 講師 (30584833)
HIRAI Shigeto 北見工業大学, 地球環境工学科 先端物質材料工学コース, 助教 (80756669)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2015: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
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| Keywords | 電気化学触媒 / 酸素発生反応 / 酸素還元反応 / 異常原子価イオン / 結晶構造 / 二機能性触媒 / 電極 / 過電圧 / ターフェルプロット / 交換電流密度 / 活性化エネルギー / 電極反応 / 異常高原子価 / 水電解 / 四重ペロブスカイト / 触媒・化学プロセス / 高圧合成 / 構造解析 |
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| Outline of Final Research Achievements |
Perovskite oxides have been attracting attention as catalysts having high catalytic activities for the oxygen evolution reaction (OER), which is an essential reaction for industrial applications. By the support of this research grant, we clarified that unusual iron ions (Fe4+ ions) at B sites in the perovskite structure play an important role to achieve the high catalytic activity for OER, and we proposed the mechanism explaining the reason why the quadruple perovskite oxides have high catalytic activities for OER based on the structural analyses observations. Furthermore, bifunctional electrochemical catalysts AMn3Mn4O12 (A=Ca, La) were developed, which were active for both the OER and oxygen reduction reaction (ORR) by changing the structure of manganese oxides originally active for ORR to quadruple perovskite.
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Report
(4 results)
Research Products
(40 results)
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[Journal Article] Covalency-reinforced oxygen evolution reaction catalyst2015
Author(s)
S. Yagi, I. Yamada, H. Tsukasaki, A. Seno,M. Murakami, H. Fujii, H. Chen,N. Umezawa, H. Abe, N. Nishiyama, S. Mori
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Journal Title
Nature Communications
Volume: 6
Issue: 1
Pages: 8249-8249
DOI
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] 酸素発生触媒の活性化と安定化2016
Author(s)
八木 俊介, 山田 幾也
Organizer
日本セラミックス協会 第28回秋季シンポジウム
Place of Presentation
広島大学東広島キャンパス
Year and Date
2016-09-07
Related Report
Invited
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[Presentation] 共有結合性の向上による酸素発生触媒の活性化2015
Author(s)
八木 俊介, 山田 幾也,塚崎 裕文, 瀬野 晃大, 藤井 央, 梅澤 直人, 阿部 英樹, 森 茂生
Organizer
平成27年度資源・素材関係学協会合同秋季大会
Place of Presentation
愛媛大学（愛媛）
Year and Date
2015-09-09
Related Report
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[Presentation] 新規酸素発生反応触媒の構造・活性2015
Author(s)
山田 幾也, 八木 俊介, 塚崎 裕文, 瀬野 晃大, 藤井 央, 梅澤 直人, 阿部 英樹, 森 茂生
Organizer
平成27年度資源・素材関係学協会合同秋季大会
Place of Presentation
愛媛大学（愛媛）
Year and Date
2015-09-09
Related Report
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