Non-Pd BCC alloy membranes for industrial hydrogen separation

With low cost raw materials and high hydrogen permeabilities, body-centred-cubic (BCC) alloys comprising Group IV and V metals are of considerable interest for high-temperature hydrogen separation applications. Until recently, their tendency to embrittle severely has tempered the enthusiasm for these materials in the membrane research community, but efforts to develop BCC alloy membranes suitable for industrial H 2 separation processes have increased recently and significant gains have been made in overcoming the inherent instability of these materials in hydrogen.