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A general method to construct single-atom catalysts supported on N-doped graphene for energy applications

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Abstract

Single atom catalysts (SACs) with atomically dispersed catalytic sites have shown great promise for energy related chemical reactions. In this work, a facile and general approach to synthesize a large variety of transition metal (Fe, Ni, Co, Cu, etc.) SACs with a large surface area and a hierarchical structure using layered montmorillonite (MMT) as the structural template was developed. Specifically, the as-synthesized nickel SAC (Ni-SAC) exhibits outstanding performance toward electrochemical CO2 reduction, achieving CO2-to-CO conversion with more than 90% faradaic efficiency in the potential range from −0.6 to −1.1 V vs. RHE, and the iron SAC (Fe-SAC) displays excellent ORR activity, with the half-wave potential surpassing that of the state-of-the-art Pt/C catalyst.

Graphical abstract: A general method to construct single-atom catalysts supported on N-doped graphene for energy applications

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Article information


Submitted
25 Oct 2019
Accepted
10 Feb 2020
First published
17 Feb 2020

J. Mater. Chem. A, 2020, Advance Article
Article type
Communication

A general method to construct single-atom catalysts supported on N-doped graphene for energy applications

L. Liu, S. Liu, L. Li, H. Qi, H. Yang, Y. Huang, Z. Wei, L. Li, J. Xu and B. Liu, J. Mater. Chem. A, 2020, Advance Article , DOI: 10.1039/C9TA11715F

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