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S-doped WP2 nanowire-derived self-standing electrocatalytic electrode for boosting alkaline hydrogen evolution

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Abstract

The development of non-noble metal-based electrocatalysts is still a challenge for electrochemical water-splitting technology. Herein, we successfully fabricated a novel three-dimensional sulfur (S)-doped WP2 nanowires (NWs) on carbon cloth (CC) as a self-supported electrode for electrocatalytic HER in alkaline media. The optimized S-doped WP2 NWs acquire the low overpotentials of 180 mV at 100 mA cm−2. The S-doping is proved to enlarge the specific surface area, reduce the charge transfer resistance, and optimize the electronic structure of WP2 NWs/CC. This study opens an avenue for enhancing the electrocatalytic activity via non-metal doping.

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Data are available on request from the corresponding author.

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Acknowledgments

This work is supported by the Chongqing Natural Science Foundation (No. cstc2019jcyj-msxmX0572).

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Authors and Affiliations

  1. Chongqing Key Laboratory of Soft Condensed Matter Physics and Smart Materials, College of Physics, Chongqing University, Chongqing, 401331, China

    Jianqiao Zhang, Fengting Luo, Feng Ran & Shijian Chen

  2. College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China

    Mingyu Pi

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  1. Jianqiao Zhang
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  2. Fengting Luo
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  3. Mingyu Pi
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  4. Feng Ran
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Correspondence to Shijian Chen.

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Zhang, J., Luo, F., Pi, M. et al. S-doped WP2 nanowire-derived self-standing electrocatalytic electrode for boosting alkaline hydrogen evolution. MRS Communications 12, 780–785 (2022). https://doi.org/10.1557/s43579-022-00232-2

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