Distance effect of single atoms on stability of cobalt oxide catalysts for acidic oxygen evolution
University of Science and Technology of China · Chinese Academy of Sciences · +5 more institutions
Abstract
Developing efficient and economical electrocatalysts for acidic oxygen evolution reaction (OER) is essential for proton exchange membrane water electrolyzers (PEMWE). Cobalt oxides are considered promising non-precious OER catalysts due to their high activities. However, the severe dissolution of Co atoms in acid media leads to the collapse of crystal structure, which impedes their application in PEMWE. Here, we report that introducing acid-resistant Ir single atoms into the lattice of spinel cobalt oxides can significantly suppress the Co dissolution and keep them highly stable during the acidic OER process. Combining theoretical and experimental studies, we reveal that the stabilizing effect induced by Ir…
Citation impact
- FWCI
- 9.88
- Percentile
- 100%
- References
- 52
Authors
11- ZZZhirong ZhangCorresponding
University of Science and Technology of China, Chinese Academy of Sciences, Hefei Institutes of Physical Science
- CJChuanyi Jia
Guizhou Education University
- PMPeiyu Ma
University of Science and Technology of China, National Synchrotron Radiation Laboratory, Collaborative Innovation Center of Chemistry for Energy Materials
- CFChen Feng
University of Science and Technology of China, Chinese Academy of Sciences, Hefei Institutes of Physical Science
- YJYang Jin
University of Science and Technology of China, Chinese Academy of Sciences, Hefei Institutes of Physical Science
Topics & keywords
- Cobalt
- Spinel
- Catalysis
- Oxygen evolution
- Dissolution
- Inorganic chemistry
- Chemistry
- Oxygen
- Clean water and sanitation
Funding
- NNNational Natural Science Foundation of ChinaAwards: 22250007, [2021], U19A2015, 22221003, 22202192, 22163002, 21925204
- CAChinese Academy of SciencesAwards: DNL202003, 123GJHZ2022101GC, YSBR-051
- CPChina Postdoctoral Science FoundationAwards: 2023M743372, GZC20232537
- UOUniversity of Science and Technology of ChinaAward: YD9990002016
- HSHefei Science Center, Chinese Academy of SciencesAward: 2022HSC-CIP004
- NKNational Key Research and Development Program of ChinaAwards: 22221003, 22250007, 2021YFA1500500, 2019YFA0405600
- NSNational Science Fund for Distinguished Young ScholarsAwards: U19A2015, 21925204