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<p>Earth-abundant and efficient electrocatalysts have attracted widespread attention for achieving thorough breakthrough of the oxygen evolution reaction (OER) as well as exploring sustainable energy. In this research, a CoP<sub>3</sub>/MoO<sub>3</sub> composite grown on the kapok fiber (KF) with 3D hollow tubular structure was obtained using a facile calcining synthesis approach. Due to the construction of CoP<sub>3</sub> and MoO<sub>3</sub> heterointerface favoring the fast electron transfer, the as-synthesized CoP<sub>3</sub>/MoO<sub>3</sub>/KF@ME showed excellent electrocatalytic OER performance, showing low overpotentials of 208&#xa0;mV at 10&#xa0;mA&#xa0;cm<sup>−2</sup> and 351&#xa0;mV at 50&#xa0;mA&#xa0;cm<sup>−2</sup> with a small Tafel slope of 73&#xa0;mV dec<sup>−1</sup> in alkaline electrolyte, respectively. This work helped to construct a non-precious metal and biomass-derived nanomaterial. </p> Graphical Abstract <p></p>

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Facile Synthesis of CoP3/MoO3 Nanoparticles Grown on Kapok Fiber for Efficient Oxygen Evolution Reaction

  • 期刊论文

  • 发表日期：

    2025年6月25日

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  • Minfeng Meng,
  • Shaohua Hu,
  • Liang Zhang,
  • Jingtao Su,
  • Xianlong Ge,
  • Yankai Song,
  • Kaiwen Liu,
  • Yingying Gu

摘要

Earth-abundant and efficient electrocatalysts have attracted widespread attention for achieving thorough breakthrough of the oxygen evolution reaction (OER) as well as exploring sustainable energy. In this research, a CoP3/MoO3 composite grown on the kapok fiber (KF) with 3D hollow tubular structure was obtained using a facile calcining synthesis approach. Due to the construction of CoP3 and MoO3 heterointerface favoring the fast electron transfer, the as-synthesized CoP3/MoO3/KF@ME showed excellent electrocatalytic OER performance, showing low overpotentials of 208 mV at 10 mA cm−2 and 351 mV at 50 mA cm−2 with a small Tafel slope of 73 mV dec−1 in alkaline electrolyte, respectively. This work helped to construct a non-precious metal and biomass-derived nanomaterial.

Graphical Abstract