Study of the Kinetics of Hydrogen Evolution Reaction on Raney Nickel Composite‐Coated Electrode by AC Impedance Technique
Source abstract
Abstract
The hydrogen evolution reaction on the Raney nickel composite‐coated electrode is investigated in aqueous solution at 70°C by ac impedance technique. In case of the chemically activated electrode material, the easiest pathway for the hydrogen evolution reaction (HER) is the Volmer‐Tafel mechanism, and the controlling step is the Volmer reaction with a small contribution of the Heyrovsky reaction. The electrode material becomes more electrocatalytic towards the HER after an electrochemical activation. In this case, the easiest pathway for the HER is the Volmer‐Heyrovsky mechanism, both steps being rate‐controlling.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrochemical Analysis and Applications · Electrocatalysts for Energy Conversion · Conducting polymers and applications
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Affiliations
Institut de Recherche d'Hydro‐Quebec, 1800 Montee Ste‐Julie, Varennes, Quebec, Canada J3X 1S1
Departement de Chimie, Universite de Sherbrooke, 2500 Boul. Universite, Sherbrooke, Quebec, Canada J1K 2R1
References
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