Applied Catalysis2022，Vol.3019.DOI:10.1016/j.apcatb.2021.120754

Synergistic effect in ultrafine PtNiP nanowires for highly efficient electrochemical hydrogen evolution in alkaline electrolyte

Chen, Qian Wei, Bo Wei, Yi Zhai, Pengbo Liu, Wei Gu, Xiaokang Yang, Zhilin Zuo, Jinghan Zhang, Ruifeng Gong, Yongji
Applied Catalysis2022，Vol.3019.DOI:10.1016/j.apcatb.2021.120754
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  • NSTL
  • Elsevier

Synergistic effect in ultrafine PtNiP nanowires for highly efficient electrochemical hydrogen evolution in alkaline electrolyte

Chen, Qian 1Wei, Bo 1Wei, Yi 2Zhai, Pengbo 1Liu, Wei 1Gu, Xiaokang 1Yang, Zhilin 1Zuo, Jinghan 1Zhang, Ruifeng 1Gong, Yongji1
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作者信息

  • 1. Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
  • 2. Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
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Abstract

Platinum-based catalysts play an important role in electrochemical hydrogen evolution reaction, which is a renewable and clean way to produce H-2. Herein, we have successfully synthesized the ultrafine PtNiP NWs with diameter less than 5 nm via a simple two-step hydrothermal reaction method. Impressively, the PtNiP NWs exhibit one of the best electrocatalytic activity toward HER under alkaline conditions, which can reach current density of 500 mA cm(-2) only at the -0.153 V vs RHE with Tafel slop of only 30 mV dec(-1). The DFT calculation results show synergistic effect of Pt, Ni and P atoms, where Ni atoms are conducive to the adsorption of H2O and P atoms are helpful for the dissociation of H2O, significantly improving kinetic processes of hydrogen evolution reaction. This work could be instructive and meaningful to design highly efficient and stable HER catalyst in alkaline condition for practical applications.

Key words

Hydrogen evolution reaction/PtNiP nanowires/Synergistic effect/Alkaline electrolyte

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量48
参考文献量58
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