Mechanistic study of the hydrogen evolution reaction on Ni-Zn and Ni-S cathodes
作者： MJ De Giz , M Ferreira , Germano Tremiliosi-Filho , ER Gonzalez , None
DOI: 10.1007/BF00721956
关键词: Rate-determining step 、 Electrochemistry 、 Cathode 、 Substrate (chemistry) 、 Hydrogen 、 Kinetics 、 Inorganic chemistry 、 Activation energy 、 Chemistry 、 Aqueous solution
摘要: Electrodeposited Ni-Zn and Ni-S on a mild steel substrate have shown very good performance as cathode materials for the HER in alkaline media. The were studied previously with surface techniques evaluated through current-potential curves long term operation. This paper describes detailed mechanistic study of carried out impedance techniques. In both cases reaction proceeds Volmer-Heyrovsky mechanism. As predicted by kinetic theory, temperature shows that energy activation rate determining step is same overall reaction.
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