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Nano Research 2024, 17(5): 3693-3699 https://doi.org/10.1007/s12274-023-6270-1
Research Article | Issue | Published: 18 November 2023

Novel CoP/CoMoP2 heterojunction with nanoporous structure as an efficient electrocatalyst for hydrogen evolution

Show Author's Information Lili Zhang,  Xinxing Shi,  Aijiao Xu,  Wenwu Zhong,  Jitang Zhang( ),  Shijie Shen( )
Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Jiaojiang 318000, China
Keywords:
nanoporous, heterojunction, hydrogen evolution reaction, CoP, CoMoP2
Topics:
Hydrogen evolution reaction
Cite this article:
Zhang L, Shi X, Xu A, et al. Novel CoP/CoMoP2 heterojunction with nanoporous structure as an efficient electrocatalyst for hydrogen evolution. Nano Research, 2024, 17(5): 3693-3699. https://doi.org/10.1007/s12274-023-6270-1
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Abstract Full text Electronic supplementary material About this article

The exploration of new heterojunction materials is of great significance in reducing the cost of existing noble metal catalysts and thus realizing the large-scale application of electrocatalytic hydrolysis technology. Herein, a novel CoP/CoMoP2 heterojunction was synthesized and served as a hydrogen evolution reaction (HER) electrocatalyst. The heterojunction has morphology of nanoporous structure, which is conducive to exposing more active sites and facilitating bubbles transport. The charge distribution is optimized by a strong interface interaction between CoP and CoMoP2. The catalyst’s conductivity and the adsorption properties of the intermediates have both been enhanced. CoP/CoMoP2 demonstrates excellent HER activity with an overpotential of 93.6 mV at 10 mA∙cm−2, which is competitive with the reported performance of analogous electrocatalysts. This work provides insights into the development of innovative phosphide-based heterojunction electrocatalysts.


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Abstract
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Electronic supplementary material
About this article

Novel CoP/CoMoP2 heterojunction with nanoporous structure as an efficient electrocatalyst for hydrogen evolution

Show Author's information Lili Zhang, Xinxing Shi, Aijiao Xu, Wenwu Zhong, Jitang Zhang( ), Shijie Shen( )
Zhejiang Provincial Key Laboratory for Cutting Tools, Taizhou University, Jiaojiang 318000, China

Abstract

The exploration of new heterojunction materials is of great significance in reducing the cost of existing noble metal catalysts and thus realizing the large-scale application of electrocatalytic hydrolysis technology. Herein, a novel CoP/CoMoP2 heterojunction was synthesized and served as a hydrogen evolution reaction (HER) electrocatalyst. The heterojunction has morphology of nanoporous structure, which is conducive to exposing more active sites and facilitating bubbles transport. The charge distribution is optimized by a strong interface interaction between CoP and CoMoP2. The catalyst’s conductivity and the adsorption properties of the intermediates have both been enhanced. CoP/CoMoP2 demonstrates excellent HER activity with an overpotential of 93.6 mV at 10 mA∙cm−2, which is competitive with the reported performance of analogous electrocatalysts. This work provides insights into the development of innovative phosphide-based heterojunction electrocatalysts.

Keywords: nanoporous, heterojunction, hydrogen evolution reaction, CoP, CoMoP2

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Publication history
Copyright
Acknowledgements

Publication history

Received: 01 September 2023
Revised: 05 October 2023
Accepted: 15 October 2023
Published: 18 November 2023
Issue date: May 2024

Copyright

© Tsinghua University Press 2023

Acknowledgements

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. 52271184 and 52072255) and the Natural Science Foundation of Zhejiang Province, China (Nos. LY23E020001 and LTY20E020001).

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