Scholarlink

<p>Molybdenum disulfide (MoS<sub>2</sub>) is considered a promising non-noble metal catalyst for the hydrogen evolution reaction (HER) due to its unique layered structure, natural abundance, and excellent intrinsic catalytic performance. However, its inherent problems such as poor conductivity, slow electron transfer kinetics, and coexistence of multiple crystal phases hinder the industrial application of MoS<sub>2</sub> in the HER. To address these challenges, a mixed-phase MoS<sub>2</sub> containing both 1&#xa0;T and 2H structures was synthesized directly on pretreated nickel foam (NF) using a simple solvothermal method. The resulting MoS<sub>2</sub>/NF hybrid synergistically combines the excellent electrical conductivity and three-dimensional porous framework of NF with the high catalytic efficiency of MoS<sub>2</sub>, leading to enhanced MoS<sub>2</sub> HER performance. In 1&#xa0;M KOH, the composite achieves an overpotential of just 151&#xa0;mV and a Tafel slope of 98.9&#xa0;mV&#xa0;dec<sup>−1</sup> at 10&#xa0;mA&#xa0;cm<sup>−2</sup>, surpassing that of bare NF and several reported MoS<sub>2</sub>-based catalysts. The findings of this work serve as a reference for designing efficient electrocatalysts based on non-precious metals.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

MoS2 Supported on Nickel Foam as a High-Efficiency Electrocatalyst for the Hydrogen Evolution Reaction

  • 期刊论文

  • 发表日期：

    2025年12月19日

查看全文
  • Qian Li,
  • Changlin Li,
  • Wenpei Wang,
  • Xihong He,
  • Lili Gao,
  • Jinjing Du,
  • Yaqing Weng,
  • Wanqiu Chai

摘要

Molybdenum disulfide (MoS2) is considered a promising non-noble metal catalyst for the hydrogen evolution reaction (HER) due to its unique layered structure, natural abundance, and excellent intrinsic catalytic performance. However, its inherent problems such as poor conductivity, slow electron transfer kinetics, and coexistence of multiple crystal phases hinder the industrial application of MoS2 in the HER. To address these challenges, a mixed-phase MoS2 containing both 1 T and 2H structures was synthesized directly on pretreated nickel foam (NF) using a simple solvothermal method. The resulting MoS2/NF hybrid synergistically combines the excellent electrical conductivity and three-dimensional porous framework of NF with the high catalytic efficiency of MoS2, leading to enhanced MoS2 HER performance. In 1 M KOH, the composite achieves an overpotential of just 151 mV and a Tafel slope of 98.9 mV dec−1 at 10 mA cm−2, surpassing that of bare NF and several reported MoS2-based catalysts. The findings of this work serve as a reference for designing efficient electrocatalysts based on non-precious metals.