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Electrocatalytic Oxygen Reduction at Multinuclear Metal Active Sites Inspired by Metalloenzymes
This item is licensed under:Creative Commons Attribution 4.0 International
| Title: | Electrocatalytic Oxygen Reduction at Multinuclear Metal Active Sites Inspired by Metalloenzymes |
| Authors: | Kato, Masaru Browse this author →KAKEN DB | | Yagi, Ichizo Browse this author →KAKEN DB |
| Keywords: | Oxygen reduction reaction | | Nonprecious metal catalyst | | Electrocatalysis | | Metalloenzyme | | Polymer electrolyte fuel cell |
| Issue Date: | 14-Mar-2020 |
| Publisher: | 日本表面科学会, The Surface Science Society of Japan, SSSJ |
| Journal Title: | e-Journal of Surface Science and Nanotechnology |
| Volume: | 18 |
| Start Page: | 81 |
| End Page: | 93 |
| Publisher DOI: | 10.1380/ejssnt.2020.81 |
| Abstract: | Polymer electrolyte fuel cells (PEFCs) are a clean, sustainable device to convert chemical energy to electricity and can provide power for automobiles, trains, and ships. In PEFCs, the oxygen reduction reaction (ORR) occurs at the cathode and is catalyzed at electrocatalysts. The activity of ORR electrocatalysts is known to limit the overall performance of PEFCs because the ORR is more sluggish than the hydrogen oxidation reaction at the anode. In the state-of-the-art PEFC, platinum group metal (PGM)-based ORR electrocatalysts are used. Since PGMs are rare and expensive, highly active and durable non-PGM ORR electrocatalysts are required for widespread applications of PEFCs. In nature, metalloenzymes such as cytochrome c oxidase and multicopper oxidases efficiently catalyze the ORR and utilize multinuclear iron and/or copper complexes as active sites. The structure of these active sites and enzyme reaction mechanisms would give us design concepts of artificial non-PGM electrocatalysts for the ORR, possibly leading us to develop next-generation non-PGM electrocatalysts. Herein, recent research progress on understanding enzymatic ORR reaction mechanisms and developing non-PGM ORR electrocatalysts is reviewed from the viewpoint of bio-inspired approaches. |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/79393 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 加藤 優
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