Journal
NANOSCALE
Volume 12, Issue 30, Pages 15944-15969Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0nr03719b
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Funding
- National Natural Science Foundation of China [21773093, 51671089]
- Natural Science Foundation of Guangdong Province [2017B030306004]
- Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme
- Fundamental Research Funds for the Central Universities
- Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials [AESM201701]
- Guangzhou Science and Technology Program [201707010268]
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As the cornerstone of the hydrogen economy, water electrolysis consisting of the hydrogen and oxygen evolution reactions (HER and OER) greatly needs cost-efficient electrocatalysts that can decrease the dynamic overpotential and save on energy consumption. Over past years, observable progress has been made by constructing core-shell structures free from or with few noble-metals. They afford particular merits,e.g., a highly-exposed active surface, modulated electronic configurations, strain effects, interfacial synergy, or reinforced stability, to promote the kinetics and electrocatalytic performance of the HER, OER and overall water splitting. So far, a large variety of inorganics (carbon and transition-metal related components) have been introduced into core-shell electrocatalysts. Herein, representative efforts and progress are summarized with a clear classification of core and shell components, to access comprehensive insights into electrochemical processes that proceed on surfaces or interfaces. Finally, a perspective on the future development of core-shell electrocatalysts is offered. The overall aim is to shed some light on the exploration of emerging materials for energy conversion and storage.
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