Hydrogen permeation in stressed and strained membranes of palladium alloys

In experimental studies of hydrogen permeation through a Pd 77Ag 23 membrane at 25 and 50°C, forms of the time-dependent changes of hydrogen pressure within the membrane have been found to be clearly dependent on the catalytic activities of the membrane surface, initial hydrogen content of the membr...

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Bibliographic Details
Published inInternational journal of hydrogen energy Vol. 17; no. 10; pp. 777 - 781
Main Authors Tong, X.Q., McNicholl, R.-A., Kandasamy, K., Lewis, F.A.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.10.1992
Elsevier
Subjects
Alternative fuels. Production and utilization
Applied sciences
Energy
Exact sciences and technology
Fuels
Hydrogen
Gas permeability
Silver Palladium Alloys
Temperature
Storage
Hydrogen
Membrane
Metal Hydrides
Diffusion
Pressure
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Summary:In experimental studies of hydrogen permeation through a Pd 77Ag 23 membrane at 25 and 50°C, forms of the time-dependent changes of hydrogen pressure within the membrane have been found to be clearly dependent on the catalytic activities of the membrane surface, initial hydrogen content of the membrane and conditions of lattice strain due to different processes of generation of lattice stress. This strongly supports the appreciation that hydrogen diffusion in metals involves non-Fickian features which are associated with Gorsky Effect phenomena. Correlations have been made between these effects and the forms of isothermal hydrogen pressure( p)-hydrogen content( n) relationships for the Pd 77Ag 23H n system.
ISSN:0360-3199
1879-3487
DOI:10.1016/0360-3199(92)90021-N