结合直接化学还原法和交替微波法制备了泡沫Ni载Ni—WC催化剂,用X射线衍射、扫描电镜和透射电镜对催化剂进行了表征,研究了其析氢电催化性能.结果表明,在相同条件下,泡沫Ni载Ni—WC催化剂的析氢起始电位与泡沫Ni相比降低了60mV左右.电解质浓度和温度对泡沫Ni载Ni—WC催化剂的析氢电催化活性有很大影响。
Foam Ni-supported Ni-WC electrocatalysts were prepared using direct chemical reduction and intermittent microwave heating methods. The electrocatalysts were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The results show that the onset potential for the hydrogen evolution reaction on the foam Ni-WC electrocatalyst is 60 mV more positive than that on the pure foam Ni electrocatalyst. The concentration of the electrolyte and the temperature are critical for the catalytic performance of the foam Ni-WC electrocatalyst.