1. Inkjet Printing of Microporous Silica Gas Separation Membranes.
- Author
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Bram, Martin, Dornseiffer, Jürgen, Hoffmann, Jan, Gestel, Tim, Meulenberg, Wilhelm A., Stöver, Detlev, and Bhandarkar, S.
- Subjects
INK-jet printers ,SILICA ,GAS separation membranes ,ALUMINUM oxide ,COATING processes - Abstract
Inkjet printing was applied to manufacture silica-based gas separation membranes, which were coated on a pore-graduated alumina substrate with a mesoporous γ-alumina interlayer. A silica sol diluted by 1-propanol was used to print the membrane layer followed by thermal treatment in a rapid thermal processing furnace. The membrane thickness was varied between 30 and 110 nm by conducting one, two, and three coating steps. In the latter case, H
2 permeance in the range of 2.0 × 10−8 -3.3 × 10−8 mol/s·m2 ·Pa combined with H2 /CO2 selectivities in the range of 15-25 were achieved, proving the concept that inorganic gas separation membranes can be successfully processed by inkjet printing. [ABSTRACT FROM AUTHOR]- Published
- 2015
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