Cobalt Manganese Oxides as Oxygen Evolution Catalysts in Acidic Media

Name: Cobalt Manganese Oxides as Oxygen Evolution Catalysts in Acidic Media
Creator: University of Oxford, Department of Materials, Parks Road Oxon, OX1 3PH, Oxford, UNITED KINGDOM; University of Oxford, Department of Materials, Parks Road, Oxon, Ox1 3ph Oxford, United Kingdom
Published: 2028-01-01T00:00:00+08:00

ESRF Portal2028-01-01 更新2026-04-23 收录

电催化析氧反应

催化剂原位表征

数据链接：

https://doi.esrf.fr/10.15151/ESRF-ES-2250350049 数据链接链接失效反馈

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资源简介：

Here, we propose a study of Co and Mn K-edge XAS and EXAFS spectra of cobalt manganese oxide spinel catalysts for the oxygen evolution reaction (OER) in acidic conditions. Using a combination of an established flow cell setup and an industrially relevant MEA cell, operando measurements of gas-evolving reactions can be conducted under realistic operating potentials and current densities. This allows identification of intermediate phases in the catalyst and understanding of its structural evolution. Through interpretation of the pre-edge and rising edge features in XANES spectra, and the evolution of M-O and M-M (where M could be Co or Mn) coordination environments from FT-EXAFS spectra fitting, we aim to address the key question: how do the Co and Mn oxidation states and coordination environments evolve with potential in an acidic electrolyte?

提供机构：

University of Oxford, Department of Materials, Parks Road Oxon, OX1 3PH, Oxford, UNITED KINGDOM; University of Oxford, Department of Materials, Parks Road, Oxon, Ox1 3ph Oxford, United Kingdom

创建时间：

2028-01-01