The exploration of efficient catalysts toward hydrogen evolution reaction (HER) is still an urgent task. In this paper, Ni/Mo/Cu/C and Ni/Mo/C electrode were obtained by conventional pulse voltammetry, which acted as cathode in microbial electrolysis cells (MECs). The prepared samples are analyzed using SEM, XRD, XPS and electrochemical analysis techniques. Results indicated that the Ni/Mo/Cu coating has a rough and globular structure and presents high current density, a lower Tafel slope of 23.9 mV/dec than 30 mV/dec of Pt, which exceeds the electrochemical activity of Pt electrode. Its remarkably enhanced electrocatalytic activity is attributed to the high surface area, high conductivity as well as synergistic interaction among Ni, Mo and Cu.

探索用于析氢反应（HER）的高效催化剂仍然是一项紧迫的任务。在本文中，通过常规脉冲伏安法获得了 Ni/Mo/Cu/C 和 Ni/Mo/C 电极，它们在微生物电解池 (MECs) 中充当阴极。使用SEM、XRD、XPS和电化学分析技术分析制备的样品。结果表明，Ni/Mo/Cu 涂层具有粗糙的球状结构，并呈现出高电流密度，23.9 mV/dec 的塔菲尔斜率低于 Pt 的 30 mV/dec，超过了 Pt 电极的电化学活性。其显着增强的电催化活性归因于高表面积、高电导率以及 Ni、Mo 和 Cu 之间的协同相互作用。