Journal
JOURNAL OF ENERGY CHEMISTRY
Volume 50, Issue -, Pages 280-285Publisher
ELSEVIER
DOI: 10.1016/j.jechem.2020.03.048
Keywords
Hydrogen evolution; Electrochemistry; Molten salt; Ni; V2O3
Funding
- National Natural Science Foundation of China [51722404, 51674177, 51804221, 91845113]
- National Key R&D Program of China [2018YFE0201703]
- China Postdoctoral Science Foundation [2018M642906, 2019T120684]
- Fundamental Research Funds for the Central Universities [2042017kf0200]
- Hubei Provincial Natural Science Foundation of China [2019CFA065]
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Implementation of non-precious electrocatalysts is key-enabling for water electrolysis to relieve challenges in energy and environmental sustainability. Self-supporting Ni-V2O3 electrodes consisting of nanostrip-like V2O3 perpendicularly anchored on Ni meshes are herein constructed via the electrochemical reduction of soluble NaVO3 in molten salts for enhanced electrocatalytic hydrogen evolution. Such a special configuration in morphology and composition creates a well confined interface between Ni and V2O3. Experimental and Density-Functional-Theory results confirm that the synergy between Ni and V2O3 accelerates the dissociation of H2O for forming hydrogen intermediates and enhances the combination of H * for generating H-2. (C) 2020 The Author(s). Published by Elsevier B.V. and Science Press on behalf of Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences.
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