Hydrogen Permeability of Mulitphase V-Ti-Ni Metallic Membranes

Journal Article · Tue Oct 18 04:00:00 EDT 2005

OSTI ID:882297

Adams, T M; Mickalonis, J

Development of advanced hydrogen separation membranes in support of hydrogen production processes such as coal gasification and as front end gas purifiers for fuel cell based system is paramount to the successful implementation of a national hydrogen economy. Current generation metallic hydrogen separation membranes are based on Pd-alloys. Although the technology has proven successful, at issue is the high cost of palladium. Evaluation of non-noble metal based dense metallic separation membranes is currently receiving national and international attention. The focal point of the reported work was to evaluate a Group 5A-Ta, Nb, V-based alloy with respect to microstructural features and hydrogen permeability. Electrochemical hydrogen permeation testing of the V-Ti-Ni alloy is reported herein and compared to pure Pd measurements recorded as part of this same study. The V-Ti-Ni was demonstrated to have a steady state hydrogen permeation rate an order of magnitude higher than the pure Pd material in testing conducted at 22 C.

• Research Organization: SRS
• Sponsoring Organization: DOE
• OSTI ID: 882297
• Report Number(s): WSRC-MS-2005-00619
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
08 HYDROGEN
30 DIRECT ENERGY CONVERSION
ALLOYS
COAL GASIFICATION
EVALUATION
FUEL CELLS
HYDROGEN
HYDROGEN PRODUCTION
IMPLEMENTATION
MEMBRANES
PALLADIUM
PERMEABILITY
TESTING