本文以正三酸乙酯（TEOS）和硝酸铝为原料，用溶胶-凝胶法制备了支撑和无支撑的莫来石膜．用DTA－TG、XRD：、SEM和BET等分析手段对莫来石膜的结构、形貌及孔径进行了表征，结果表明，非晶态凝胶膜在1050℃热处理后转变为莫来石膜，无支撑莫来石最可几孔径为371nm．
Supported;and unsupported mullite membranes were prepared by sol-gel process from bothtetraethyoxysilane (TEOS) and aluminium nitrate precursors. Structure, appearance and poresize of the mullilte membrane were characterized by DAT-TG, XRD, SEM and BET. The resultsshowed non-crystal xerogel membrane transformed into the mullite membrane after heat treatmentat 1050℃. The most concentrative pore diameter of unsupported mullite membrane was about3. 71nm.
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