Magneto-Electrocatalysis: A Multiscale Perspective on Designing High-Efficiency Electrocatalysts for Clean Energy

Battery Energy, 5(4), 1-17

Shuang Yang, Lei Tan, Leta Takele Menisa, Xiaotong Wu, Haojie Zhang, Chao Lin, Xiaopeng Li and Jung-Ho Lee

https://doi.org/10.1002/bte2.70139

Abstract

The development of highly efficient electrocatalysts is pivotal to advancing clean energy conversion technologies, as per-formance directly dictates the efficiency, stability, and scalability of energy‐related processes. Leveraging external magneticfields to bypass kinetic barriers via multiscale manipulation spanning quantum, nanoscale, and mesoscopic dimensions hasemerged as a transformative strategy to transcend the inherent constraints of conventional thermodynamic scaling relations.This review systematically elucidates the mechanisms through which magnetic modulation enhances the intrinsic activity ofcatalysts during the synthesis stage. At the quantum scale, field‐induced spin polarization reconfigures metal–ligand orbitalhybridization to intrinsically lower reaction energy barriers. At the atomic scale, an analysis of the synergy between magneticGibbs free energy, Lorentz‐driven magnetohydrodynamic vortices, and Kelvin forces reveals the fundamental principles gov-erning accelerated interfacial mass transport and regulated gas evolution. Finally, at the mesoscopic scale, magnetic field‐directed assembly leverages magnetic dipole interactions and magnetocrystalline anisotropy to construct ordered hierarchicalarchitectures. By establishing clear structure‐activity relationships between magnetic field‐assisted synthesis, multiscalestructural regulation, and catalytic performance enhancement, this review aims to provide new insights to overcome thecurrent bottleneck in electrocatalyst design and to guide the development of next‐generation magnetically responsive elec-trocatalysts for clean energy conversion.