Method of making sulfur-resistant composite metal membranes

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United States of America Patent

PATENT NO 8101243
APP PUB NO 20080038567A1
SERIAL NO

11768188

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Abstract

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The invention provides thin, hydrogen-permeable, sulfur-resistant membranes formed from palladium or palladium-alloy coatings on porous, ceramic or metal supports. Also disclosed are methods of making these membranes via sequential electroless plating techniques, wherein the method of making the membrane includes decomposing any organic ligands present on the substrate, reducing the palladium crystallites on the substrate to reduced palladium crystallites, depositing a film of palladium metal on the substrate and then depositing a second, gold film on the palladium film. These two metal films are then annealed at a temperature between about 200° C. and about 1200° C. to form a sulfur-resistant, composite PdAu alloy membrane.

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Patent Owner(s)

Patent OwnerAddress
COLORADO SCHOOL OF MINES1500 ILLINOIS STREET GOLDEN CO 80401

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lusk, Mark Golden, US 6 20
Thoen, Paul Littleton, US 5 45
Way, J Douglas Boulder, US 16 940

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