Issue 48, 2022

Low-dimensional transition metal sulfide-based electrocatalysts for water electrolysis: overview and perspectives

Abstract

Hydrogen prepared by electrocatalytic decomposition of water (“green hydrogen”) has the advantages of high energy density and being clean and pollution-free, which is an important energy carrier to face the problems of the energy crisis and environmental pollution. However, the most used commercial electrocatalysts are based on expensive and scarce precious metals and their alloy materials, which seriously restricts the large-scale industrial application of hydrogen energy. The development of efficient non-precious metal electrocatalysts is the key to achieving the sustainable development of the hydrogen energy industry. Transition metal sulfides (TMS) have become popular non-precious metal electrocatalysts with great application potential due to their large specific surface area, unique electronic structure, and rich regulatory strategies. To further improve their catalytic activities for practical application, many methods have been tried in recent years, including control of morphology and crystal plane, metal/nonmetal doping, vacancy engineering, building of self-supporting electrocatalysts, interface engineering, etc. In this review, we introduce firstly the common types of TMS and their preparation. Additionally, we summarize the recent developments of the many different strategies mentioned above for efficient water electrolysis applications. Furthermore, the rationales behind their enhanced electrochemical performances are discussed. Lastly, the challenges and future perspectives are briefly discussed for TMS-based water dissociation catalysts.

Graphical abstract: Low-dimensional transition metal sulfide-based electrocatalysts for water electrolysis: overview and perspectives

Article information

Article type
Review Article
Submitted
21 Seb 2022
Accepted
19 Nov 2022
First published
21 Nov 2022

Nanoscale, 2022,14, 17841-17861

Low-dimensional transition metal sulfide-based electrocatalysts for water electrolysis: overview and perspectives

T. Liang, A. Wang, D. Ma, Z. Mao, J. Wang and J. Xie, Nanoscale, 2022, 14, 17841 DOI: 10.1039/D2NR05205A

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