Adjusting oxygen vacancies in perovskite LaCoO3 by electrochemical activation to enhance the hydrogen evolution reaction activity in alkaline condition
Journal of Energy Chemistry（2023）
Abstract
The perovskite LaCoO3 exhibits an electrochemical activation process during hydrogen evolution reaction (HER) measurement. In-situ generated oxygen vacancies (Vo) optimize the hydrogen adsorption and water dissociation and thereby promote a high activity for HER.
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Key words
Hydrogen evolution reaction,Perovskite oxides,Activation process,Oxygen vacancies
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