Mechanistic studies of hydrogen transport through MO2C/V composite membranes

C.A. Wolden, K. Adeyemo, R.H.J. Vervuurt, M. Ostwal, J.D. Way

Research output: Contribution to journalArticleAcademicpeer-review

25 Citations (Scopus)
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Composite membranes comprised of vanadium foils coated with molybdenum carbide catalyst layers were recently introduced as alternatives to palladium for high temperature separation of H2. Experiments using D2/H2 mixtures unambiguously show that the mechanism involves dissociation, proton transport, and subsequent recombination. Temperature-dependent measurements of H2 flux were performed on sets of membranes in which the thickness of both the V foil and the Mo2CMo2C layers were varied in order to provide insight into the underlying transport mechanisms. It is shown that hydrogen transport through the carbide itself can be limiting for catalyst layers >20 nm. At temperatures
Original languageEnglish
Pages (from-to)150-154
Number of pages5
JournalJournal of Membrane Science
Publication statusPublished - 2013


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