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dc.date.accessioned2016-08-24T17:54:53Z
dc.date.available2016-08-24T17:54:53Z
dc.date.issued2009-09-08
dc.identifier.urihttp://hdl.handle.net/10919/72615
dc.description.abstractThin layers of a mixed composition are deposited on a porous substrate by chemical vapor deposition in an inert atmosphere at high temperature. The resulting membrane has excellent stability to water vapor at high temperatures. An exemplary membrane comprises an amorphous mixed-element surface layer comprising silica and at least one oxide of additional element, an optional porous substrate on which said surface layer is deposited, and a porous support on which said substrate or mixed-element surface layer is deposited, wherein the permeance of the membrane is higher than 1×10mol msPaand the selectivity of H2 over CO, CO2, and CH4 is larger than 100, and wherein the H2 permeance of the membrane after exposure to a stream containing 60 mol % water vapor at 673 K for 120 h is at least 50% of its initial H2 permeance.
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherUnited States Patent and Trademark Office
dc.titleHydrothermally-stable silica-based composite membranes for hydrogen separation
dc.typePatent
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/56/853/075/0.pdf
dc.date.accessed2016-08-19
dc.type.dcmitypeText
dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.
dc.contributor.inventorGu, Yunfeng
dc.contributor.inventorOyama, S. Ted
dc.date.filed2006-05-01
dc.identifier.applicationnumber11381088
dc.subject.uspc95/55
dc.subject.uspcother95/56
dc.subject.uspcother96/11
dc.subject.uspcother96/4
dc.subject.uspcother96/7
dc.subject.uspcother96/10
dc.subject.cpcB01D53/228
dc.subject.cpcB01D67/0048
dc.subject.cpcB01D67/0072
dc.subject.cpcB01D69/125
dc.subject.cpcB01D71/024
dc.subject.cpcB01D2257/108
dc.subject.cpcB01D2323/08
dc.subject.cpcB01D2325/20
dc.subject.cpcC01B3/503
dc.subject.cpcC01B2203/0405
dc.subject.cpcC01B2203/047
dc.subject.cpcC01B2203/0475
dc.subject.cpcC01B2203/048
dc.subject.cpcY02C20/20
dc.type.patenttypeutility
dc.identifier.patentnumber7585356


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