Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 819, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.153346
Keywords
Bifunctional electrocatalysts; Electrochemical water splitting; Transition-metal-based compounds; Hydrogen production; Catalyst design; Electrode
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Funding
- Jiku Chemical Co. Ltd.
- MEXT of Japan
- China Scholarship Council, China
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Production of hydrogen by electrochemical water splitting is considered as one of the most promising ways for sustainable energy storage and hydrogen society realization in the future. However, the key for the large-scale application of this technique is to develop highly efficient electrocatalysts with low-cost to replace the noble-metal-based ones. To date, a series of transition-metal-based bifunctional electrocatalysts for both anode and cathode have been already developed for the overall water splitting. Herein, the characteristics of hydrogen and oxygen evolution reactions on the electrodes of water electrolysis cell and the basic methods for the evaluation of the performance of electrocatalysts are introduced at first and then, the prospects of various earth-abundant transition-metal-based bifunctional electrocatalysts are critically reviewed. Finally, the challenges in the development of earth-abundant transition-metal-based bifunctional electrocatalysts are discussed. It is expected to provide a guidance for the design and fabrication of the novel bifunctional electrocatalysts with high performance in a practical water splitting process. (C) 2019 Elsevier B.V. All rights reserved.
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