Ni-Mo合金复合镀层上的析氢反应

Hydrogen Evolution Reaction on Nanocrystalline Ni Mo Alloy Composite Coating Electrodes

用稳态极化曲线及交流阻抗等电化学技术研究了不同沉积条件（沉积温度、沉积时间、沉积电流、镀液组成）所得纳米晶Ｎｉ－Ｍｏ合金复合镀层上的析氢反应，并用扫描电镜及Ｘ光能谱监测了电极表面的形貌及镀层组成，实验结果表明：沉积温度３０℃、沉积７２００ｓ。

The relation between the catalytic ability for hydrogen evolution reaction and the conditions of electrodeposition (electrodeposition temperature, electrolysis time, electrodeposition current density, electrolyte composition in the bath) has been studied using steady state polarization and ac impedance techniques. The morphology of the composite coating surface of the electrodes and the composition of the composite coating are measured by SEM and EDS. The low hydrogen overpotential is obtained if the electrodes are prepared from the electrolyte containing molybdenum at 30℃, and by using a higher electrodeposition current density and a longer electrolysis time.e.g, 7200 seconds.