Regulating Spin States in Oxygen Electrocatalysis

作者：Zhirong Zhang, Peiyu Ma, Lei Luo, Xilan Ding, Shiming Zhou, Jie Zeng · 发表于：Angewandte Chemie International Edition · 年份：2023 · DOI：10.1002/anie.202216837 · 被引用次数：170 · 研究领域：Electrocatalysts for Energy Conversion、Fuel Cells and Related Materials、CO2 Reduction Techniques and Catalysts

Developing efficient and stable transition metal oxides catalysts for energy conversion processes such as oxygen evolution reaction and oxygen reduction reaction is one of the key measures to solve the problem of energy shortage. The spin state of transition metal oxides is strongly correlated with their catalytic activities. In an octahedral structure of transition metal oxides, the spin state of active centers could be regulated by adjusting the splitting energy and the electron pairing energy. Regulating spin state of active centers could directly modulate the d orbitals occupancy, which influence the strength of metal-ligand bonds and the adsorption behavior of the intermediates. In this review, we clarified the significance of regulating spin state of the active centers. Subsequently, we discussed several characterization technologies for spin state and some recent strategies to regulate the spin state of the active centers. Finally, we put forward some views on the future research direction of this vital field.