What question did this study set out to answer?

This research aims to understand how formate can be oxidised at nickel electrodes and to identify the different pathways involved.

June 1, 2026Open Access

Electrochemical study of formate oxidation at the nickel electrode

Key Points

This research aims to understand how formate can be oxidised at nickel electrodes and to identify the different pathways involved.
Electrochemical experiments conducted on nickel materials
Comparison of formate oxidation between γ-NiOOH and β-NiOOH phases
Analysis of CO2 selectivity in an alkaline medium
γ-NiOOH facilitates formate oxidation through a purely electrochemical pathway.
β-NiOOH oxidises formate via a catalytic EC pathway, influenced by the Ni2+/N3+ couple.
The reaction is selective to CO2, which is converted to carbonate in alkaline conditions.

Abstract

• Formate can be oxidised on nickel materials. • Reaction is selective to CO 2 , which converts into carbonate in alkaline medium. • Formate oxidation involves different pathway depending on the NIOOH phase. • γ-NiOOH oxidises formate through a purely electrochemical pathway. • β-NiOOH oxidises it by a catalytic EC pathway, mediated by the Ni 2+ /N 3+ couple.

Electrochemical study of formate oxidation at the nickel electrode

Key Points

Abstract

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