Mesoporous nickelsilicate membranes on porous alumina supports
Ordered mesoporous nickelsilicate catalytic membranes have successfully been synthesized on the surface of γ-alumina disk and α-alumina tube by dip coating and immersion. The surface of the supports was cleaned and chemically modified by a series of aqueous solutions. The resulting films and bulk materials have been characterized by XRD, N2 adsorption–desorption, SEM and TEM. Gas permeation testing was carried out in a Wicke–Kallenbach cell
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