高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (2): 179.
• 研究快报 • 上一篇 下一篇
李军, 龙英才
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LI Jun, LONG Ying Cai
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关键词: 沸石膜, 低温气相化学沉积, 硅沸石, 堇青石, 气体透过
Abstract: Asilicalite 1 zeolite membrane was in situ crystallized from a layer of silica species prepared by a novel method of low temperature chemical vapor deposition (LTCVD) on a porous cordierite substrate. XRDpatterns show that the membrane consists of MFItype zeolite crystals. The investigation with SEMindicats that the membrane is about 50 μm thick, and covered with well intergrowth MFIzeolite crystals of about 10 μm in size. The EDXanalysis confirms that the membrane is composed of silica in the absence of Al, indicating high silica MFI(Silicalite-1) zeolite grown on the support. The ratio of pure gas permeation is 296 for H2/ iso butane and 13.7 for n / iso butane at room temperature respectively, confirming that the membrane synthesized on the support of cordierite is high quality without pinhole.
Key words: Zeolite membrane, LTCVD, Silicalite-1, Cordierite, Gas permeation
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O612
TrendMD:
李军, 龙英才. 一种气相合成Silicalite-1沸石膜的新方法. 高等学校化学学报, 2001, 22(2): 179.
LI Jun, LONG Ying Cai . A Novel Method for Preparation of Silicalite-1 Zeolite Membrane in Vapor Phase. Chem. J. Chinese Universities, 2001, 22(2): 179.
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