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oa Permeation of Hydrogen through Palladium-Silver Membranes
Strain-Gradient-Induced “Uphill Effects”
- Source: Platinum Metals Review, Volume 35, Issue 3, Jul 1991, p. 138 - 140
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- 01 Jan 1991
Abstract
The hydrogen content gradients that occur during hydrogen permeation through palladium-silver membranes produce complementary strain gradients of lattice expansion, which induce opposing Gorsky Effect components of Diffusion Flux. A body of observations of related “uphill effects” and allied diffusion phenomena have recently been studied, using sheet and tube membranes; these phenomena have been correlated with hydrogen pressure-hydrogen content relationships of the Pd77Ag23Hn system.
© Johnson Matthey