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<p>Herein, the cobalt–nickel phosphoselenide nanoparticles supported on nitrogen-doped carbon(CoNiPSe/NC) was prepared via a one-step pyrolysis method, in which P and Se were incorporated into the MOF-derived cobalt–nickel nanoparticles supported on nitrogen-doped carbon(CoNi/NC). In the catalyst, the co-doping of phosphorus (P) and selenium (Se) reduced the overpotentials for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) compared to their individually doped counterparts. The CoNiPSe/NC electrocatalyst demonstrated exceptional HER and OER performance, achieving low overpotentials of 123&#xa0;mV for the HER and 282&#xa0;mV for the OER at a current density of 10&#xa0;mA&#xa0;cm<sup>−2</sup>. Furthermore, CoNiPSe/NC also exhibited excellent stability for the water electrolysis reaction. This study presented an innovative approach for developing high-performance bifunctional electrocatalysts for HER and OER.</p>

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Nickel foam supported metal–organic framework-derived CoNiPSe/nitrogen-doped carbon electrocatalysts for high-efficiency water electrolysis

  • 期刊论文

  • 发表日期：

    2026年2月25日

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  • Yue Zuo,
  • Lehong Xing,
  • Jiayi Liu,
  • Yutong Zhao,
  • Chenyang Sun,
  • Shuo Bian

摘要

Herein, the cobalt–nickel phosphoselenide nanoparticles supported on nitrogen-doped carbon(CoNiPSe/NC) was prepared via a one-step pyrolysis method, in which P and Se were incorporated into the MOF-derived cobalt–nickel nanoparticles supported on nitrogen-doped carbon(CoNi/NC). In the catalyst, the co-doping of phosphorus (P) and selenium (Se) reduced the overpotentials for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) compared to their individually doped counterparts. The CoNiPSe/NC electrocatalyst demonstrated exceptional HER and OER performance, achieving low overpotentials of 123 mV for the HER and 282 mV for the OER at a current density of 10 mA cm−2. Furthermore, CoNiPSe/NC also exhibited excellent stability for the water electrolysis reaction. This study presented an innovative approach for developing high-performance bifunctional electrocatalysts for HER and OER.