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High performance hydrogen selective membranes prepared using rapid processing method

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Open access
Authors
Date
2006
Type
Conference Paper

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Citation
Gopalakrishnan, Suraj and Nair, Balagopal and Nakao, Shin-ichi. 2006. : High performance hydrogen selective membranes prepared using rapid processing method, in Jagadish, C and Lu, G Q M (ed), ICONN 2006, Jul 03 2006, pp. 509-512. Brisbane, Australia: IEEE Publishing Co.
Source Title
Proceedings of the 2006 International Conference on Nanoscience and Nanotechnology
Source Conference
ICONN 2006
Faculty
Department of Applied Chemistry
Division of Engineering, Science and Computing
Faculty of Science
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Copyright 2006 IEEE

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Abstract

The production of hydrogen using membrane based reforming technology is one important application where the membrane is required to withstand high temperatures and pressures to achieve maximum efficiency from an equilibriumlimited reaction. Microporous silica membranes offer a viable alternative to polymer and metal composite membranes. The processing of silica membranes including sol-gel and chemical vapor deposition (CVD) methods are discussed adequately in the literature. The Sol-gel method allows for the precise control of pore structure while CVD results in chemically homogenous deposits inside the porous substrates to yield better selectivity. The main problem associated with these methods is the long processing times to prepare these membranes, resulting in increased cost of production for the processing of large batches. Here we report an advance in membrane processing that could drastically reduce membrane processing time without compromising performance.