In this paper, an easy one-pot synthesis of an NiCuGO composite catalyst through electrodeposition is outlined. Various characterization techniques, such as SEM and XRD, were used for the characterization of the prepared catalyst. The catalyst's electrochemical activity was examined using cyclic voltammetry and chronoamperometry in 1 M KOH and 2 M MeOH / 1 M KOH solutions. The use of high current densities, 15.6 and 20.8 A dm⁻², allowed the preparation of powder coatings that after removal of the supporting material showed good electrocatalytic properties towards the methanol oxidation reaction (Ep_a 671 mV, ip_a 28.6 mA cm⁻², 33.7 mA mg⁻¹). For materials deposited with a higher current density, the presence of graphene oxide significantly increased their active surface (1.38 vs 1.04 mF cm⁻²). Such results suggest that electrodeposition can be a good alternative to “wet chemical” methods, such as hydrothermal process, that can require usage of toxic solvents, such as hydrazine for the preparation of catalysts for the direct methanol fuel cell (DMFC).

在本文中，概述了通过电沉积轻松一锅法合成 NiCuGO 复合催化剂。各种表征技术，如 SEM 和 XRD，用于表征制备的催化剂。使用循环伏安法和计时电流法在 1 M KOH 和 2 M MeOH / 1 M KOH 溶液中检查催化剂的电化学活性。使用 15.6 和 20.8 A dm ^-2的高电流密度，可以制备粉末涂料，在去除支撑材料后，该粉末涂料对甲醇氧化反应表现出良好的电催化性能（Ep _a 671 mV，ip _a 28.6 mA cm ^-2 , 33.7 毫安毫克^-1）。对于以较高电流密度沉积的材料，氧化石墨烯的存在显着增加了它们的活性表面（1.38 vs 1.04 mF cm ^-2）。这些结果表明，电沉积可以很好地替代“湿化学”方法，例如水热工艺，后者可能需要使用有毒溶剂，例如用于制备直接甲醇燃料电池 (DMFC) 催化剂的肼。