Ruddlesden-Popper perovskites in electrocatalysis

Electrocatalysis lies in the center of many clean energy conversion and storage technologies. Developing efficient electrocatalysts to promote the kinetics of the key chemical reactions involved in these processes represents an important research topic. Ruddlesden-Popper perovskites (An+1BnX3n+1), as a layered derivative of the perovskite family (ABX3), are an important class of solid-state materials, and are emerging as high-performing electrocatalysts due to their unique layered structure and rich chemical compositions. In this review, we provide a comprehensive understanding of the structure and properties of Ruddlesden-Popper perovskites in the context of their electrocatalysis applications. We also summarize the recent developments of Ruddlesden-Popper perovskites for catalyzing a breadth of electrochemical reactions at both low and high temperatures. We highlight how Ruddlesden-Popper perovskites can be tailored through a range of design strategies to achieve improved electrocatalysis. Finally, we provide perspectives on future research directions that further expand the electrocatalytic possibilities of Ruddlesden-Popper perovskites.