Hydrogen oxidation reaction (HOR) can be applied to proton exchange membrane fuel cells to generate electrical energy and anode discharge. Due to its special properties, RuO₂ has been applied to supercapacitors, phenolic wastewater, textile industry wastewater, and degrading organic substances. However, there is few reports on the application of the RuO₂ catalyst to hydrogen oxidation reaction (HOR). In this study, we successfully obtained RuO₂ NPs using a simple and eco-friendly hydrothermal method. Furthermore, the electrochemical activity of RuO₂ NPs prepared at different concentration (0.15 M, 0.20 M) and different hydrothermal temperature (150 °C, 160 °C, and 170 °C) was evaluated by the hydrogen oxidation reaction. The particle size, composition, dispersion and morphology of the obtained RuO₂ catalysts were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). In addition, cyclic voltammograms (CV) were utilized to investigate the electrochemical activity of the RuO₂ catalysts. The results showed that the obtained catalyst at a hydrothermal temperature of 160 °C and a concentration of 0.15 M displayed a Brunauer-Emmett-Teller (BET) surface area of 26.74 m² g⁻¹. Meanwhile, the catalyst had a uniform distribution. The hydrogen oxidation current density of the obtained RuO₂ catalysts is upto 6 mA cm⁻², showing a good electrochemical activity for hydrogen oxidation reaction.

氢氧化反应（HOR）可以应用于质子交换膜燃料电池，以产生电能和阳极放电。由于其特殊的性能，RuO ₂已应用于超级电容器，酚醛废水，纺织工业废水和降解有机物质。然而，关于RuO ₂催化剂在氢氧化反应（HOR）中的应用的报道很少。在这项研究中，我们使用简单且环保的水热方法成功获得了RuO ₂ NP。此外，RuO ₂的电化学活性通过氢氧化反应评估了在不同浓度（0.15 M，0.20 M）和不同水热温度（150°C，160°C和170°C）下制备的NP。通过X射线衍射（XRD），透射电子显微镜（TEM）和X射线光电子能谱（XPS）研究了所得RuO ₂催化剂的粒度，组成，分散性和形态。此外，循环伏安图（CV）用于研究RuO ₂催化剂的电化学活性。结果表明，所获得的催化剂在160℃的水热温度和0.15M的浓度下表现出26.74m ²  g ^-1的Brunauer-Emmett-Teller（BET）表面积。。同时，催化剂具有均匀的分布。所获得的RuO ₂催化剂的氢氧化电流密度高达6mA cm ^-2，显示出对于氢氧化反应的良好的电化学活性。