Metal oxide materials made using self-assembled coordination polymers

A method of making an organo-metal material, comprising:

• A providing a metal ion source comprising a Ga—In eutectic alloy in an aqueous acidic medium comprising a carboxylic acid comprising acetic acid or propionic acid to remove metal ions from the source and form 1D metal-containing coordination polymers, the 1D metal-containing coordination polymers comprising the metal ion and a chelating ligand that is a conjugate base of the carboxylic acid, which self-assemble and precipitate as at least one of a 2D and 3D coordination polymer material;
• and
• thermally treating the coordination polymer material to form a porous ß-Ga2O3 having high surface area and mesoporous with radius of 2-10 nm material, the thermally treating comprising a temperature of 300° C. to 1000° C.