This study reports the electrodeposition of Nickel-Tungsten (Ni-W) alloy coatings and their efficiency as electrode material for water splitting applications. Ni-W alloy coatings were electrodeposited and their electrocatalytic activity towards alkaline water splitting for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in 1 M KOH were studied. Cyclic voltammetry (CV) and chronopotentiometry (CP)techniques were used to quantify their electrocatalytic behaviors. It demonstrated the inverse dependency of electrocatalytic behaviors of coatings towards HER and OER at low and high c.d.'s, respectively. This is attributed to the change in the composition, in terms of Ni and W content of the alloy. The surface features, structural and compositional change of coatings, responsible for improved electrocatalytic activity were examined using Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Energy dispersive X-ray spectroscopy (EDS) techniques. Experiment results revealed that alloy deposit can be used as a potential material for water splitting applications.

这项研究报告了镍钨（Ni-W）合金涂层的电沉积及其作为水分解应用的电极材料的效率。对Ni-W合金镀层进行电沉积，研究了其在1 M KOH中对氢分解反应（HER）和氧分解反应（OER）对碱性水分解的电催化活性。循环伏安法（CV）和计时电位法（CP）用于量化其电催化行为。它证明了在低和高cd时，涂层的电催化行为对HER和OER的反相关性。这归因于合金中Ni和W含量的组成变化。涂层的表面特征，结构和组成变化 使用扫描电子显微镜（SEM），X射线衍射（XRD）和能量色散X射线光谱（EDS）技术检查了负责改善电催化活性的材料。实验结果表明，合金沉积物可用作水分解应用的潜在材料。