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Technique for Dispersing Catalytic Metal in Alumina Disclosure Number: IPCOM000047130D
Original Publication Date: 1983-Sep-01
Included in the Prior Art Database: 2005-Feb-07

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Cairns, JA Penebre, NA Ziegler, JF [+details]


In a process which liberates hydrogen during hydrolysis of aluminum, H2PtCl6 has been added. The released hydrogen reduces the H2PtCl6 to Pt which disperses over the Al2O3 grains formed by the hydrolysis. One problem in catalysis is how to disperse catalytic atoms throughout a porous medium. Previous attempts include processes such as high pressure compaction, ion implantation, and impregnation from a solute. All of these suffer from non-uniformity and an inaccuracy of the final quantity of the catalytic atoms deposited. Further, each technique creates catalysts with different efficiencies and life times as the final catalytic sites and agglomeration changes from one process to another. We propose a new way to obtain a catalytic dispersion in a porous medium.