Nowadays, the demand for energy is growing and the raw materials for the fossil fuel economy are diminishing. Hydrogen is being extensively investigated as an alternative to fossil fuels. Water electrolysis is a simple and large-scale industrial method, for hydrogen production. In this research, for the first time, the needle-like structure of Co₃O₄ arrays was directly grown on carbon cloth (CC) by a hydrothermal method. Then Pd particles were electrochemically deposited on the needles-like structure by cyclic voltammetry (CV) technique (Pd@Co₃O₄/CC). The structure and morphology of the electrode surface were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) techniques. The proposed electrode was applied for electrochemical hydrogen production in acidic media. The catalytic activity of the Pd@Co₃O₄/CC electrode was compared with CC, Pd/CC, and Co₃O₄/CC electrodes, which the results showed that the HER performance was as this order: Pd@Co₃O₄/CC > Pd/CC > Co₃O₄/CC > CC.

如今，对能源的需求不断增长，用于化石燃料经济的原材料正在减少。氢正在被广泛研究作为化石燃料的替代品。水电解是一种用于制氢的简单且大规模的工业方法。在这项研究中，Co ₃ O ₄阵列的针状结构首次通过水热法直接生长在碳布（CC）上。然后通过循环伏安法（CV）将Pd颗粒电化学沉积在针状结构上（Pd @ Co ₃ O ₄/ CC）。通过X射线衍射（XRD），扫描电子显微镜（SEM）和能量色散X射线光谱（EDX）技术表征了电极表面的结构和形态。提出的电极用于在酸性介质中电化学制氢。将Pd @ Co ₃ O ₄ / CC电极与CC，Pd / CC和Co ₃ O ₄ / CC电极的催化活性进行了比较，结果表明，HER性能按以下顺序：Pd @ Co ₃ O ₄ / CC> Pd / CC> Co ₃ O ₄ / CC> CC。