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Issue 5, 2019
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In situ construction of graphdiyne/CuS heterostructures for efficient hydrogen evolution reaction

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Abstract

Carbon material coating is an effective strategy to improve the stability of electrocatalysts for the hydrogen evolution reaction, but it remains a challenge to achieve for electrocatalysts with effective coatings while maintaining high activity. Here, a “hitting two birds with one stone” method was adopted to fabricate graphdiyne-wrapped CuS nanosheets on Ni foam. The CuS nanosheets not only worked as the main catalyst towards the hydrogen evolution reaction but also acted as the co-catalyst for the in situ growth of graphdiyne, which led to a strong interaction between graphdiyne and CuS. In turn, graphdiyne could enhance the catalytic activity and stability of the composite. The designed heterostructure GDY/CuS catalyst exhibited an excellent HER activity that only required 106 mV to attain the current density of 10 mA cm−2 as well as an outstanding durability in an alkaline medium. It is believed that this study proposes a well-engineered heterostructure catalyst that possesses both a physically and electrochemically advantageous structure, which offers new insights in designing graphdiyne-coated electrocatalyst materials for various electrocatalytic applications.

Graphical abstract: In situ construction of graphdiyne/CuS heterostructures for efficient hydrogen evolution reaction

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Supplementary files

Article information


Submitted
31 Jan 2019
Accepted
04 Mar 2019
First published
05 Mar 2019

Mater. Chem. Front., 2019,3, 821-828
Article type
Research Article

In situ construction of graphdiyne/CuS heterostructures for efficient hydrogen evolution reaction

G. Shi, Z. Fan, L. Du, X. Fu, C. Dong, W. Xie, D. Zhao, M. Wang and M. Yuan, Mater. Chem. Front., 2019, 3, 821
DOI: 10.1039/C9QM00064J

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