Topotactic synthesis of layered double hydroxide nanorods

Abstract

Layered double hydroxide [LiAl2(OH)6]X (LiAl–X; X = Cl, Br) 1D nanorods have been prepared in a topotactic reaction involving the intercalation of LiX (X = Cl, Br) into a rod-like form of gibbsite. The nanorod LDH products adopt a hexagonal prismatic morphology with the brucite-like layers stacking along the long rod axis. These materials are able to undergo anion-exchange reactions to give organic intercalated rod-like LDH materials.