Layered Inorganic Cationic Frameworks beyond Layered Double Hydroxides (LDHs): Structures and Applications

Layered double hydroxides (LDHs), a typical layered inorganic cationic material, have been widely studied as ion-exchanger, catalyst and polymer additives. The past few decades have seen rapidly increasing interest in non-LDH type 2-dimensional inorganic cationic frameworks. Their novel properties derived from structural and compositional diversity cast a light on the field where LDHs show limited performance. This minireview will discuss the structure, synthesis and applications including anion-exchange and catalysis of non-LDH type 2-dimensional inorganic cationic frameworks and present the prospective for researchers working on.