The creation of considerably effective electrocatalysts to reduce overpotentials is essential for speeding up the sluggish oxygen evolution reaction (OER) processes, which is imperatively required for the practical exploitation of electrochemical water-splitting. Herein, we prepared a unique composite structure, uniformly spherical Ni-MOF decorated with NiMoO₄ nanorods on Ni foam (NF), and assessed its performance toward oxygen evolution reaction. The synergistic effect between NiMoO₄ and Ni-MOF remarkably promoted the OER intrinsic activity. Moreover, introducing NiMoO₄ endowed the composite structure with enhanced electrical conductivity and exposed more active sites. The NiMoO₄/Ni-MOF/NF electrode exhibited exceptional electrocatalytic activity in 1.0 M KOH aqueous solution, with a low overpotential of 218 mV to drive the current density of 10 mA cm⁻² and a low Tafel slope (67.75 mV dec⁻¹), surpassing the benchmark RuO₂. The presented strategy opens a promising candidate for preparing novel non-precious metal OER electrocatalysts derived from MOF materials for sustainable energy applications.

创造相当有效的电催化剂来降低过电位对于加速缓慢的析氧反应（OER）过程至关重要，这对于实际开发电化学水分解是必不可少的。在此，我们制备了一种独特的复合结构，在泡沫镍（NF）上装饰有NiMoO ₄纳米棒的均匀球形Ni-MOF，并评估了其对析氧反应的性能。_{NiMoO 4}和Ni-MOF之间的协同作用显着促进了OER的内在活性。此外，引入NiMoO ₄赋予复合结构增强的导电性并暴露出更多的活性位点。NiMoO ₄/Ni-MOF/NF 电极在 1.0 M KOH 水溶液中表现出优异的电催化活性，具有 218 mV 的低过电势来驱动 10 mA cm ^-2的电流密度和低 Tafel 斜率（67.75 mV dec ^-1），超过基准RuO ₂。所提出的策略为制备源自 MOF 材料的新型非贵金属 OER 电催化剂用于可持续能源应用开辟了前景。