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<p>The design of sustainable and extremely promising electrocatalysts for hydrogen evolution reaction (HER) is a top research priority in order to achieve effective water splitting and meet the world’s energy needs. The current study introduces hydrothermal synthesis of CuMoO<sub>4</sub>/rGO composite for assessing HER function under alkaline conditions. The electrochemical features of CuMoO<sub>4</sub>/rGO were examined through three electrode configurations in basic media, demonstrating a remarkably reduced η (-102 mV) at desired current density (j) of -10&#xa0;mA/cm². Additionally, it showed considerable electrochemical active surface area (ECSA) of 460 cm<sup>2</sup> and reduced Tafel slope (61 mV/dec) than pristine CuMoO<sub>4</sub> nanomaterial. The CuMoO<sub>4</sub>/rGO composite has remarkable stability over 50&#xa0;h. The outstanding results of CuMoO<sub>4</sub>/rGO electrocatalyst is related to interaction between CuMoO<sub>4</sub> and rGO, enabling charge transport. Additionally, CuMoO<sub>4</sub>’s distinct electrical structure enhances HER kinetics, indicating its suitability as a low-cost, renewable alternative to catalysts based on noble metals. The CuMoO₄/rGO material offers significant potential for HER and electrochemical usage as result of its increased surface area, abundant reactive sites, excellent long-term stability, rapid electron mobility, reduced electrical resistance and improved conductivity.0</p>

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Evaluating the distinctive features of CuMoO4/rGO composite as an innovative high- performance catalyst for HER

  • 期刊论文

  • 发表日期：

    2026年6月17日

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  • Reda A. Haggam,
  • Sarah A. Alsalhi,
  • Ali El-Rayyes,
  • Hala M. Abo Dief,
  • Eman Alzahrani,
  • Abhinav Kumar,
  • Aqsa Batool,
  • Rizwan Ul Hassan

摘要

The design of sustainable and extremely promising electrocatalysts for hydrogen evolution reaction (HER) is a top research priority in order to achieve effective water splitting and meet the world’s energy needs. The current study introduces hydrothermal synthesis of CuMoO4/rGO composite for assessing HER function under alkaline conditions. The electrochemical features of CuMoO4/rGO were examined through three electrode configurations in basic media, demonstrating a remarkably reduced η (-102 mV) at desired current density (j) of -10 mA/cm². Additionally, it showed considerable electrochemical active surface area (ECSA) of 460 cm2 and reduced Tafel slope (61 mV/dec) than pristine CuMoO4 nanomaterial. The CuMoO4/rGO composite has remarkable stability over 50 h. The outstanding results of CuMoO4/rGO electrocatalyst is related to interaction between CuMoO4 and rGO, enabling charge transport. Additionally, CuMoO4’s distinct electrical structure enhances HER kinetics, indicating its suitability as a low-cost, renewable alternative to catalysts based on noble metals. The CuMoO₄/rGO material offers significant potential for HER and electrochemical usage as result of its increased surface area, abundant reactive sites, excellent long-term stability, rapid electron mobility, reduced electrical resistance and improved conductivity.0