Patent ID: 8227046

Claim:
A process for the preparation of a homogeneous nanobinary or ternary metal oxy/hydroxide of LDH with a high surface area and a 1-10 nm particle size by an aerogel protocol, comprising in the following sequence: reacting metal turnings with dry alcohol to form metal alkoxides or metal acetylacetonates, homogenization of metal alkoxides or metal acetylacetonates in a solvent mixture of dry toluene and methanol, hydrolysis of said metal alkoxides or metal acetylacetonates in said solvent mixture of toluene and methanol, by controlled addition of deionised water or a mixture thereof with alcohols, aging for 6 to 16 hours, followed by hydrothermal treatment, and supercritical drying to obtain a free flow powder of homogeneous nanobinary or ternary metal oxy/hydroxide of LDH, wherein the powder has a high surface area and a 1-10 nm particle size.