Spin-engineered catalysts: unlocking new frontiers in environmental and energy catalysis applications

Environmental catalysis is pivotal in addressing pollution and advancing energy conversion technologies. Spin, an intrinsic particle property of a material, significantly influences catalytic reactions by altering the electronic structure of active sites, radical reactions, and electron transfer behavior, all of which impact reaction selectivity and mechanisms. Understanding the spin properties within advanced materials is essential for elucidating the structure-activity relationships between the spin characteristics and the catalytic mechanism. This review begins by outlining the fundamental concepts and parameters associated with spin. It provides a comprehensive overview of the primary techniques and methodologies employed to characterize spin properties and strategies for modulating spin alignment through external fields and internal structural adjustments. The discussion then progresses to examine how spin characteristics influence various aspects of environmental catalysis, including reaction kinetics, thermodynamics, stability, pathways, and mechanisms of catalysis. In the concluding sections, the authors highlight the current challenges in applying spin concepts to environmental catalysis and propose recommendations to address these obstacles, while outlining potential directions for future research. Exploring spin properties can unveil the core mechanisms of environmental catalytic processes and facilitate the design of more efficient spin engineered catalysts, advancing the frontiers of catalytic applications and progress in environmental and energy sciences.