ISSN:
1572-8838
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract 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 materials were studied previously with surface techniques and evaluated through current-potential curves and long term operation. This paper describes a detailed mechanistic study of the HER on Ni-Zn and Ni-S carried out with impedance techniques. In both cases the reaction proceeds through a Volmer-Heyrovsky mechanism. As predicted by kinetic theory, the temperature study shows that the energy of activation of the rate determining step is the same as the energy of activation of the overall reaction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00721956
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