Work

Can magnetic fields necessarily regulate electrocatalysis in catalysts with bulk ferromagnetism/ferrimagnetism?

Year: 2025

Type: article

Abstract: The magnetic field represents a potent tool for modulating electrocatalytic performance, with diverse forms of physical mechanisms governing this regulation. Currently, catalysts capable of effectively enabling field regulation of oxygen evolution reaction typically exhibit bulk ferromagnetism or ferrimagnetism at room temperature. However, it is essential to note that electrocatalytic reactions are fundamentally surface chemical reaction phenomena, and discrepancies between bulk and surface magnetism may impede the achievement of magnetic field-regulated electrocatalysis, a facet seldom explored in prior research on field regulation. Importantly, our results confirm that magnetic fields do not achieve a regulatory effect in bulk ferrimagnetic Fe3O4 and CoFe2O4 catalysts at room temperature, thereby enhancing insight into the understanding of reaction mechanisms of filed-regulated electrocatalysis.

Source: Journal of Applied Physics

DOI: 10.1063/5.0264799

Authors: Yuhu Huang, Fei Zheng, Han-Shu Xu

Institutions: University of Science and Technology of China, Anhui Medical University

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: $3,500

Funder: Anhui Medical University