B. Bozzini et al., ELECTROLYTIC HYDROGEN EVOLUTION ON CO-ALLOY THIN-FILMS PREPARED BY ELECTROCHEMICAL AND AUTOCATALYTIC DEPOSITION TECHNIQUES, Electrochimica acta, 39(11-12), 1994, pp. 1787-1793
Various thin films of Co-based alloys deposited by chemical and electr
ochemical methods have been tested as cathodes for hydrogen evolution
reaction (HER) and anodes for oxygen evolution reaction (OER) in alkal
ine solutions. The results obtained with the SCP (Secondary Current Pu
lse) method, studying the electrochemical transients, are compared wit
h amperostatic measurements. Surface coverage with the electrocatalyti
c films can be followed through SCP parameter values. A general frame
is proposed for the interpretation of the electrokinetic behaviour on
the base of the Normality-Inertia parameter. Co20Pt20 and Co20Pd80 ele
ctrodeposited thin films show interesting electrocatalytic properties
towards H-2 and O-2 evolution, respectively.