Work

Promoting Electrochemical Reversibility: Concave versus Convex Electrodes

Year: 2025

Type: article

Abstract: The importance of electrode shape, alongside electrode size, as key factors in controlling the reversibility or otherwise of electrochemical responses, is recognized at the microscopic level but is explored here via finite-element simulation on the macroscopic scale. Reduced overpotential is seen for concave surfaces relative to flat or convex surfaces, providing an unexplored avenue for the design and fabrication of electrodes, including composites for diverse applications where enhanced reversibility is desirable, such as in sensors and battery materials where the promotion of electrocatalytic responses is important.

Source: The Journal of Physical Chemistry Letters

DOI: 10.1021/acs.jpclett.5c00849

Authors: Haotian Chen, Huanxin Li, Bedřich Smetana, Vlastimil Novák, Richard G. Compton

Institutions: University of Michigan, University of Oxford, University College London, VSB - Technical University of Ostrava

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funders: Schmidt Futures, European Commission, Ministerstvo Školství, Mládeže a Tělovýchovy