Hydrogen transport membranes
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United States of America Patent
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Issued Date -
Nov 3, 2005
app pub date -
May 31, 2005
filing date -
Mar 5, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Composite hydrogen transport membranes used for extraction of hydrogen from gas mixtures are provided. Membranes are described comprising metals and metal alloys which exhibit high hydrogen permeability and which exhibit resistance to differential pressures across the membrane and wherein the metals and alloys are protected from embrittlement by hydrogen. Support materials of the membranes are selected in some cases to be lattice matched to the metals and alloys. In specific embodiments, membranes useful in the invention contain binary, ternary or quaternary alloys of vanadium which exhibit high hydrogen permeability and improved strength and/or longevity in application.
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