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Nitrogen-Rich Manganese Oxynitrides with Enhanced Catalytic Activity in the Oxygen Reduction Reaction
| Title: | Nitrogen-Rich Manganese Oxynitrides with Enhanced Catalytic Activity in the Oxygen Reduction Reaction |
| Authors: | Miura, Akira Browse this author →KAKEN DB | | Rosero-Navarro, Carolina Browse this author | | Masubuchi, Yuji Browse this author →KAKEN DB | | Higuchi, Mikio Browse this author →KAKEN DB | | Kikkawa, Shinichi Browse this author →KAKEN DB | | Tadanaga, Kiyoharu Browse this author →KAKEN DB |
| Issue Date: | 19-May-2016 |
| Publisher: | Wiley-Blackwell |
| Journal Title: | Angewandte Chemie International Edition |
| Volume: | 55 |
| Issue: | 28 |
| Start Page: | 7963 |
| End Page: | 7967 |
| Publisher DOI: | 10.1002/anie.201601568 |
| PMID: | 27193352 |
| Abstract: | The catalytic activity of manganese oxynitrides in the oxygen reduction reaction (ORR) was investigated in alkaline solutions to clarify the effect of nitrogen on ORR activity. These oxynitrides, having rocksalt-based structures with different nitrogen content, were synthesized by reactions of MnO, Mn2O3, and MnO2 with molten NaNH2 at 240-280 ℃. Anion contents and Mn valence states were determined by combustion analysis, powder X-ray diffraction, and X-ray absorption near edge structure analysis. An increase in nitrogen content in rocksalt- based manganese oxynitrides enhanced the valence of manganese and reinforced the catalytic activity for the ORR in 1 M KOH solution. Nearly single-electron occupancy in antibonding eg states and high covalency in Mn–N bonding would enhance the ORR activity of nitrogen-rich manganese oxynitrides. |
| Rights: | This is the peer reviewed version of the following article: Nitrogen-Rich Manganese Oxynitrides with Enhanced Catalytic Activity in the Oxygen Reduction Reaction, which has been published in final form at http://dx.doi.org/10.1002/anie.201601568. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/65491 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 三浦 章
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