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Dense Carbide/Metal Composite Membranes for Hydrogen Separations Without Platinum Group Metals
Author(s) -
Gade Sabina K.,
Chmelka Sara J.,
Parks Sterling,
Way J. Douglas,
Wolden Colin A.
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201100931
Subject(s) - materials science , platinum group , platinum , vanadium , catalysis , palladium , hydrogen , membrane , metal , carbide , alloy , hydrogen embrittlement , vanadium carbide , composite number , chemical engineering , inorganic chemistry , metallurgy , composite material , organic chemistry , corrosion , chemistry , biochemistry , engineering
Mo 2 C‐coated vanadium composites are presented as an example of a new class of metallic membranes for hydrogen separations. Unlike conventional platinum‐ group catalysts, Mo 2 C does not alloy with the bulk metal at temperatures >350 °C, allowing for operation without risk of embrittlement or loss of catalyst activity. Optimal permeabilities approach that of palladium, at a far lower cost.