Preparation of Ni catalysts on Al-HMS nanostructure support via supercritical deposition in supercritical carbon dioxide–methanol solution with thermodynamic control of metal loading

Preparation of Ni/Al-HMS (Hexagonal Meso Structured) catalysts by the supercritical deposition method was investigated. Metal loading can be controlled thermodynamically based on the adsorption isotherm of the metal salts between the supercritical carbon dioxide-methanol phase and the Al-HMS phase. In this route, Al-HMS was impregnated with Ni(NO3)2 . 6H2O that dissolved in supercritical CO2–methanol solution and the resulting composites were converted to Ni/Al-HMS catalysts. Methanol as cosolvent enhanced the dissolution of precursors in supercritical CO2.

کلیدواژه ها:

Supercritical Deposition ، Nanocomposite ، HMS ، Catalyst