Study of the mechanism of the hydrogen evolution reaction at Raney nickel electrodes in the presence of organic compounds

Journal Article · Fri Apr 01 00:00:00 EST 1994 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2054867· OSTI ID:7294406

Cheong, A K; Lasia, A; Lessard, J ^[1]

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1. Univ. de Sherbrooke, Quebec (Canada). Dept. de Chimie

The hydrogen evolution reaction (HER) has been studied at Raney nickel electrodes in the absence and presence of several organic compounds. A poisoning effect of nonreducible organic substrates on the kinetics of the HER was studied. It was found that only pyridine had a strong inhibiting effect on the HER. A compound having one reducible double bond, trans-cinnamic acid, was used as a model in a study of the mechanism of the electrocatalytic hydrogenation (ECH) reaction and its influence on the HER. It was established that the HER proceeds via the Volmer-Hyrovsky reaction mechanism, and the slowest step is the Heyrovsky reaction.

• OSTI ID: 7294406
• Journal Information: Journal of the Electrochemical Society; (United States), Vol. 141:4; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
HYDROGEN PRODUCTION
ELECTROLYSIS
NICKEL
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
DEACTIVATION
ELEMENTS
KINETICS
LYSIS
METALS
REACTION KINETICS
TRANSITION ELEMENTS
080101* - Hydrogen- Production- Electrolysis