Double Perovskites in Catalysis, Electrocatalysis, and Photo(electro)catalysis

A sustainable future requires clean energy and environmental technologies. At the heart of these technologies are high-performance catalysts that efficiently increase the rate and selectivity of key chemical reactions involved. Single perovskites have long been considered as a class of active catalysts with a relatively simple atomic arrangement. Double perovskites, a subclass of perovskites characterized by cation ordering, are emerging alternatives to single perovskites showing comparable or even better performance. In this review, we explore recent developments of double perovskites in various catalytic applications including general catalysis, electrocatalysis, and photo(electro)catalysis. We also discuss how double perovskite chemistries can be tailored toward improved functionality and identify opportunities for the future research of double perovskite catalysts.