This work focuses on the use of a deep eutectic solvent mixture to deposit nanoparticles of nickel and iron onto a surface of stainless steel (SS) mesh. The study was used to assess the performance of NiFe@SS nanoparticles in hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and overall water splitting (OWS) reactions in a 1.0 M KOH solution. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM) were the materials characterization techniques that were used to examine the structure and physical properties of the NiFe@SS alloy deposited on the SS mesh. Electrochemical active surface area (ECSA) calculations were used for estimating the surface area of the electrode actively participating in the electrochemical reactions. The stability and durability of NiFe@SS nanoparticles were investigated through chronopotentiometry, chronoamperometry, and cyclic voltammetry. The results of the HER, OER, and OWS reactions brought out the significant electrocatalytic performance of NiFe@SS. The benchmark catalyst afforded overpotential values of −0.138 V and 0.234 V towards the HER and OER, respectively. The overall water-splitting cell voltage was about 1.56 V. The outperformed catalyst of NiFe@SS had an ECSA value of 32.75 mF/cm² and showed more activity in HER, OER, and OWS reactions.

这项工作的重点是使用低共熔溶剂混合物将镍和铁纳米颗粒沉积到不锈钢 (SS) 网的表面上。该研究用于评估 NiFe@SS 纳米颗粒在 1.0 M KOH 溶液中析氢反应 (HER)、析氧反应 (OER) 和总体水分解 (OWS) 反应中的性能。X 射线衍射 (XRD)、X 射线光电子能谱 (XPS) 和扫描电子显微镜 (SEM) 是材料表征技术，用于检查沉积在 SS 网上的 NiFe@SS 合金的结构和物理性能。电化学活性表面积（ECSA）计算用于估计积极参与电化学反应的电极的表面积。通过计时电位法、计时电流法和循环伏安法研究了 NiFe@SS 纳米粒子的稳定性和耐久性。HER、OER 和 OWS 反应的结果显示出 NiFe@SS 显着的电催化性能。基准催化剂对 HER 和 OER 的过电势值分别为 -0.138 V 和 0.234 V。总水分解电池电压约为1.56 V。NiFe@SS催化剂的ECSA值为32.75 mF/cm ²，在HER、OER和OWS反应中表现出更高的活性。