Issue 30, 2020

Core–shell nanostructured electrocatalysts for water splitting

Abstract

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.

Graphical abstract: Core–shell nanostructured electrocatalysts for water splitting

Article information

Article type
Review Article
Submitted
13 May 2020
Accepted
06 Jul 2020
First published
07 Jul 2020

Nanoscale, 2020,12, 15944-15969

Core–shell nanostructured electrocatalysts for water splitting

X. Yin, L. Yang and Q. Gao, Nanoscale, 2020, 12, 15944 DOI: 10.1039/D0NR03719B

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