Anionic clay–Pt metal nanoparticle composite through intercalation of hexachloroplatinate in nickel zinc hydroxysalt

Nickel zinc hydroxysalt–Pt metal nanoparticle composite was prepared by intercalation of the anionic platinum complex, [PtCl 6] 2− in nickel zinc hydroxysalt through ion exchange reaction and subsequent reduction of the platinum complex by ethanol. Powder X-ray diffraction and microscopy studies indicate that the process of reduction of the platinum complex in the interlayer region of the anionic clay takes place topotactically without destroying the layers. Nickel zinc hydroxysalt was intercalated with [PtCl 6] 2− by ion exchange reaction. The intercalated solid was subsequently reduced by refluxing in ethanol to form anionic clay–platinum nanoparticle composite. [Display omitted]