Structure and Performance of Porous 7-alumina Transition Layers

Journal of Inorganic Materials

• Research Paper • Previous Articles Next Articles

Structure and Performance of Porous 7-alumina Transition Layers

YU Yun¹; HE Chao¹; CHEN Xin-Biao¹; WANG Zhen-Hong¹; HU Xing-Fang¹; LARBOT Andre²

1. Research and Development Center of Special Inorganic Materials of Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. Institut Europeendes Membranes; Campus CNRS 1919; Route de Mende-34293 Montpellier Cedex 5; France

Received:2001-10-15 Revised:2002-01-22 Published:2002-11-20 Online:2002-11-20

Abstract

Abstract: Porous γ-alumina transition membranes with a most probable pore size of 0.38μm and thickness of 4μm were successfully synthesized
via sol-gel route on the porous alumina substrates with pore size of 0.9μm. The physical chemistry transformation and microstructure of the
as-prepared membranes were systematically characterized by using DTA-TG, FTIR, XRD and SEM. The results indicate that the transition membranes fabricated
in the work are smooth without any crack. Also, As-prepared membrane has the characteristic of preferred oritation. The separation coefficient for
H₂-N₂ is about 3.30.

Key words: sol-gel method, 7-alumina transition membrane, microstructure, performance

CLC Number:

O484

YU Yun,HE Chao,CHEN Xin-Biao,WANG Zhen-Hong,HU Xing-Fang,LARBOT Andre. Structure and Performance of Porous 7-alumina Transition Layers[J]. Journal of Inorganic Materials.

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Structure and Performance of Porous 7-alumina Transition Layers

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