Issue 46, 2021

Recent advances in carbon substrate supported nonprecious nanoarrays for electrocatalytic oxygen evolution

Abstract

The oxygen evolution reaction (OER) plays a crucial role in sustainable energy conversion and storage including water splitting, fuel cells, and metal–air batteries. The design and exploration of earth-abundant OER electrocatalysts with low cost, high-performance, and durability are of paramount importance. Nanoarray catalysts constructed on free-standing carbon substrates have drawn significant attention owing to their high conductivity, fascinating nanostructures, and abundant active sites. This review presents recent progress toward advanced self-supported catalysts for the OER. We have systematically overviewed diverse synthetic approaches for the preparation of self-supported electrocatalysts with selected examples of metal oxides, metal hydroxides/oxyhydroxides, metal phosphides, metal sulfides, metal selenides, and metal–organic frameworks (MOFs) and their derivatives. State-of-the-art strategies to improve OER catalytic activity and stability of self-supported catalysts are provided including interface and defect engineering as well as heteroatom-doping. Finally, an overview of current challenges and future prospects for developing more promising carbon substrate supported nanoarray catalysts is provided.

Graphical abstract: Recent advances in carbon substrate supported nonprecious nanoarrays for electrocatalytic oxygen evolution

Article information

Article type
Review Article
Submitted
18 Sept. 2021
Accepted
20 Okt. 2021
First published
20 Okt. 2021

J. Mater. Chem. A, 2021,9, 25773-25795

Recent advances in carbon substrate supported nonprecious nanoarrays for electrocatalytic oxygen evolution

C. Wang, B. Yan, Z. Chen, B. You, T. Liao, Q. Zhang, Y. Lu, S. Jiang and S. He, J. Mater. Chem. A, 2021, 9, 25773 DOI: 10.1039/D1TA08039C

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