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Title: Method of making sulfur-resistant composite metal membranes

Patent ·
OSTI ID:1034638

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.degree. C. and about 1200.degree. C. to form a sulfur-resistant, composite PdAu alloy membrane.

Research Organization:
Colorado School of Mines (Golden, CO)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG26-03NT41792; FG02-93ER14363
Assignee:
Colorado School of Mines (Golden, CO)
Patent Number(s):
8,101,243
Application Number:
11/768,188
OSTI ID:
1034638
Country of Publication:
United States
Language:
English

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