Insights into Heterogeneous Catalysis on Surfaces with 3d Transition Metals: Spin-Dependent Chemisorption Models and Magnetic Field Effects

TL;DR

This review discusses how spin-dependent chemisorption models and magnetic field effects on 3d transition metal catalysts can influence reactions like ORR and OER, highlighting recent theoretical and experimental advances.

Contribution

It synthesizes recent developments in spin-dependent chemisorption theories and magnetic field effects, proposing new strategies for catalyst design using magnetic properties.

Findings

Magnetic fields can enhance ORR and OER on ferromagnetic catalysts.

Spin moments influence chemisorption and catalytic activity.

Surface magnetism correlates with catalytic performance.

Abstract

This article provides a review of recent developments in the field of 3d transition metal (TM) catalysts for different reactions including oxygen-based reactions such as Oxygen Reduction Reaction (ORR) and Oxygen Evolution Reaction (OER). The spin moments of 3d TMs can be exploited to influence chemical reactions, and recent advances in this area, including the theory of chemisorption based on spin-dependent d-band centers and magnetic field effects, are discussed. The article also explores the use of scaling relationships and surface magnetic moments in catalyst design, as well as the effect of magnetism on chemisorption and vice versa. In addition, recent studies on the influence of a magnetic field on the ORR and OER are presented, demonstrating the potential of ferromagnetic catalysts to enhance these reactions through spin polarization.