Unveiling Oscillatory Behavior in the Electro-Oxidation of Ethanol on Nickel Electrodes.

ABSTRACT: Ethanol derived from renewable sources is a carbon-neutral fuel, and its electro-oxidation offers a pathway for sustainable energy generation, reducing dependence on fossil fuels. Nickel, as a cost-effective alternative to noble metals, enhances the economic feasibility of large-scale applications in energy systems such as alkaline fuel cells and electrolyzers. This study presents an experimental investigation of ethanol electro-oxidation on nickel electrodes in alkaline media, focusing on electrocatalytic activity and the emergence of oscillatory kinetics. The results demonstrate that ethanol electro-oxidation is facilitated by NiOOH species, with the oxidation of ethanol identified as the rate-determining step. Cyclic voltammetry revealed that the conversion of Ni-(OH)₂ to NiO

SUBMITTER: B Perroni P 

PROVIDER: S-EPMC12536493 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature