Two dimensional (2D) metastable-phase oxides, which combine the distinctive characteristics of metal oxides, 2D materials, and metastable-phase materials, have attracted significant attention. This Minireview predicts the occurrence and highlights the advantages, reliable syntheses, and catalytic applications of 2D metastable-phase oxides. Abstract Since the discovery of graphene, the development of new two-dimensional (2D) materials has received considerable interest. Recently, as a newly emerging member of the 2D family, 2D metastable-phase oxides that combine the unique advantages of metal oxides, 2D structures, and metastable-phase materials have shown enormous potential in various catalytic reactions. In this review, the potential of various 2D materials to form a metastable-phase is predicted. The advantages of 2D metastable-phase oxides for advanced applications, reliable methods of synthesizing 2D metastable-phase oxides, and the application of these oxides in different catalytic reactions are presented. Finally, the challenges associated with 2D metastable-phase oxides and future perspectives are discussed.
Published in: "Angewandte Chemie International Edition".