4.7 Review

Carbon-supported non-noble metal single-atom catalysts for electro-catalytic hydrogen evolution reaction

Journal

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 48, Issue 45, Pages 17106-17136

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2023.01.213

Keywords

Hydrogen evolution reaction; Single-atom; Electro-catalyst; Non-noble metal; Carbon

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This paper reviews the reaction mechanisms of electro-catalytic hydrogen evolution reaction (HER) and the preparation methods for single atom catalysts (SACs) supported on carbons. It discusses the applications of non-noble metal-based SACs/C catalysts in HER and elaborates on the structure-performance relationships. The challenges and perspectives of electrolytic HER are also proposed.
Hydrogen -a renewable and clean energy is deemed as the best alternative to fossil fuels. Electro-catalytic hydrogen evolution reaction (HER) based on non-noble metals exhibits great potentials in recent years, especially at the atomic level. In this review, the reaction mechanisms of HER are firstly illustrated, followed by the introduction of preparation methods for single atom catalysts (SACs) supported on carbons. Subsequent sections consist of representative characterizations and simulation methods for SACs. After that, the applications of non-noble metal-based SACs/C catalysts in HER are discussed based on the metal type. During the discussion of their applications, the structure-performance relationships are elaborated in depth in terms of the design strategy, including the carbon matrix, heteroatom doping and bimetallic composition. Finally, the challenges and perspectives of electrolytic HER are proposed.(c) 2023 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.

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