Patent ID: 8778058
Filing Date: 2014-07-15
Classification: B01D,C01B

Abstract:
1. A method of fabricating a sulfur-resistant composite metal membrane without tin or EDTA, comprising: seeding a substrate with palladium crystallites; decomposing an organic ligand present on the substrate; reducing the palladium crystallites to a metallic form; depositing a first film of palladium metal on the substrate; depositing a second metal film on the first film, wherein a material of the second metal film is selected from the group consisting of gold, ruthenium, silver and copper; depositing additional layers of palladium metal and depositing additional layers of the second metal film to form a multilayer film of palladium and the second metal film; and, drying of the multilayer film at a temperature above about 130° C. to form a sulfur-resistant composite Pd-metal alloy multilayer film membrane.