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- W1991684793 abstract "Microporous ceramic membranes of Al2O3, BaO-Al2O3 and LaaO3-Al2O3 were prepared by repeated dip-coating of a sol on an α-Al2O3 porous substrate. The thermal stability of the membranes was studied from their pore structure, gas permeability, gas separation factor and surface microstructure after calcination at 500–1300°C. The BaO-Al2O3 and La2O3-Al2O3 membranes exhibited much higher heat resistance than the Al2O3 membrane. Although significant crack formation and pore growth were observed for the Al2O3 membrane after heating above 900° C due to γ-α transformation, the BaO-Al2O3 and La2O3-Al2O3 membranes retained a crack-free microstructure, narrow pore size distribution, and excellent selectivity for gas permeation even after calcination, up to 1100°C." @default.
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- W1991684793 date "1994-12-01" @default.
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- W1991684793 title "Preparation and characterization of sol-gel derived microporous membranes with high thermal stability" @default.
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- W1991684793 doi "https://doi.org/10.1016/0376-7388(94)00123-5" @default.
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