Microporous Zirconia–Titania Composite Membranes Derived from Diethanolamine-Modified Precursors



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Microporous zirconia–titania composite membranes have been fabricated by sol–gel processing using diethanolamine-modified precursor solutions. Microporous materials made from powders calcined at 400 °C show type I nitrogen sorption behavior. Supported ∼0.1 μm thick membranes (see figure) exhibit molecular-sieving properties and are expected to have great potential for separation and reaction applications under harsh conditions.