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4958344 
Journal Article 
Ultrathin porous glass membranes with controlled texture properties 
Enke, D; Friedel, F; Janowski, F; Hahn, T; Gille, W; Muller, R; Kaden, H 
2002 
1 
Studies in surface science and catalysis
ISSN: 0167-2991 
STUDIES IN SURFACE SCIENCE AND CATALYSIS 
144 
347-354 
WOS:000180452700045 
Porous glass membranes were prepared in shape of ultrathin plates from a sodium borosilicate initial glass by phase-separation and combined acid and alkaline leaching. The thickness of the membranes varies between 100 and 300 mum. The textural characteristics of these materials were determined using nitrogen physisorption, mercury intrusion, scanning electron microscopy and small angle X-ray scattering. Gas permeation measurements were used to investigate the transport parameters of the porous glass membranes. Furthermore, the mechanical stability and the optical transparency (by UV-VIS spectroscopy) were characterized. The pore structure of the membranes can be tailored in the range between 1 and 120 nm. 
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