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  Largely Enhanced Oxygen Evolution Performance in a Ferromagnetic Ruddlesden–Popper Phase Cobaltate

Meng, Z., Qi, Y., Qin, P., Zhou, X., Wang, X., Chen, H., Liu, L., Zhao, G., Duan, Z., Liu, J., Zhang, Q., Tang, P., & Liu, Z. (2025). Largely Enhanced Oxygen Evolution Performance in a Ferromagnetic Ruddlesden–Popper Phase Cobaltate. Nano Letters, 25(12), 4887-4894. doi:10.1021/acs.nanolett.5c00061.

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基本情報

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0010-F0CF-6 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0010-F0D2-1
資料種別: 学術論文

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meng-et-al-2025-largely-enhanced-oxygen-evolution-performance-in-a-ferromagnetic-ruddlesden-popper-phase-cobaltate.pdf (出版社版), 6MB
 
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meng-et-al-2025-largely-enhanced-oxygen-evolution-performance-in-a-ferromagnetic-ruddlesden-popper-phase-cobaltate.pdf
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nl5c00061_si_001.pdf (付録資料), 765KB
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https://hdl.handle.net/21.11116/0000-0010-F0D3-0
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nl5c00061_si_001.pdf
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Supporting Information: Experimental methods; theoretical calculation; XPS analysis; electrical resistance measurements; repeat and reliability experiments; OER test at pH 14
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関連URL

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URL:
https://doi.org/10.1021/acs.nanolett.5c00061 (出版社版)
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作成者

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 作成者:
Meng, Z.1, 著者
Qi, Y.1, 著者
Qin, P.1, 著者
Zhou, X.1, 著者
Wang, X.1, 著者
Chen, H.1, 著者
Liu, L.1, 著者
Zhao, G.1, 著者
Duan, Z.1, 著者
Liu, J.1, 著者
Zhang, Q.2, 著者
Tang, P.1, 3, 4, 著者           
Liu, Z.1, 著者
所属:
1School of Materials Science and Engineering, Beihang University, ou_persistent22              
2Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, ou_persistent22              
3Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
4Center for Free-Electron Laser Science, ou_persistent22              

内容説明

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キーワード: magnetocatalysis, oxygen evolution reaction, La2CoO4, ferromagnetic oxides
 要旨: The oxygen evolution reaction (OER), as a key half-reaction in water splitting, plays a critical role in various energy conversion and storage systems. Novel high-performance catalysts have always been desirable. In this work, we have fabricated insulating perovskite LaCoO3 and its corresponding Ruddlesden–Popper (RP) phase La2CoO4 films. At room temperature, the perovskite LaCoO3 films are nonmagnetic while the RP phase La2CoO4 films are ferromagnetic. The magnetic RP phase La2CoO4 thin films exhibit significantly higher OER activities, with a nearly 70-fold increase in current density compared to the perovskite LaCoO3. Theoretical calculations indicate that the ferromagnetic order in the RP phase film substantially lowers the OER overpotential. This study highlights the potential of RP phase magnetic cobaltates for electrochemical water oxidation and magnetocatalysis applications.

資料詳細

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言語: eng - English
 日付: 2025-03-112025-01-032025-03-132025-03-172025-03-26
 出版の状態: 出版
 ページ: 8
 出版情報: -
 目次: -
 査読: 査読あり
 識別子（DOI, ISBNなど）: DOI: 10.1021/acs.nanolett.5c00061
 学位: -

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Project information

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Project name : Z.L. acknowledges financial support from Beijing Natural Science Foundation (no. JQ23005). Z.L. acknowledges financial support from National Key R&D Program of China (no. 2022YFA1602700). Z.L., P.T., and P.Q. acknowledge financial support from Fundamental Research Funds for the Central Universities. Z.L. acknowledges financial supports from National Natural Science Foundation of China (nos. 52425106 and 52271235). Z.L. acknowledges financial support from National Key R&D Program of China (no. 2022YFB3506000). P.Q. acknowledges financial support from National Natural Science Foundation of China (no. 52401300). Z.L. acknowledge financial support from National Natural Science Foundation of China (no. 52121001). P.T. acknowledges financial supports from National Natural Science Foundation of China (nos. 12234011 and 12374053). P.Q. acknowledges funding from China National Postdoctoral Program for Innovative Talents (no. BX20230451) and from China Postdoctoral Science Foundation (no. 2024M754058). Z.M. acknowledges financial support from National Natural Science Foundation of China (no. 524B2003). The authors acknowledge Dr. Qiao Jin and Dr. Erjia Guo at Chinese Academy of Sciences for their help in collecting the x-ray diffraction data.
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Funding organization : -

出版物 1

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出版物名: Nano Letters
  省略形 : Nano Lett.
種別: 学術雑誌
 著者・編者:
所属:
出版社, 出版地: Washington, DC : American Chemical Society
ページ: - 巻号: 25 (12) 通巻号: - 開始・終了ページ: 4887 - 4894 識別子（ISBN, ISSN, DOIなど）: ISSN: 1530-6984
CoNE: https://pure.mpg.de/cone/journals/resource/110978984570403