Paul D. I. Fletcher
Permeability of silica monoliths containing micro- and nano-pores
Fletcher, Paul D. I.; Haswell, Stephen J.; He, Ping; Kelly, Stephen M.; Mansfield, Andrew
Stephen J. Haswell
Ping He P.He@hull.ac.uk
Professor Stephen Kelly S.M.Kelly@hull.ac.uk
For applications as catalyst supports in flow reactors, porous silica monoliths require a combination of connected pores of micron-scale to enable fluid flow plus nm-scale pores to enable high catalyst area and activity. We have synthesised a range porous silica monoliths, characterised their micron and nm-scale pores and measured their permeability coefficients K. K can be controlled over the range 10-10 m, primarily by adjustment of the polymer/silane concentration ratio, whilst maintaining the specific surface area and nm-scale porosity approximately constant. For the majority of the silica monolith samples, the measured permeability coefficient K is 2-5 times smaller than K for a hypothetical reference system consisting of a monolith with uniform cylindrical pores aligned in the flow direction and with the same average pore diameter and volume fraction. © 2010 Springer Science+Business Media, LLC.
Fletcher, P. D. I., Haswell, S. J., He, P., Kelly, S. M., & Mansfield, A. (2011). Permeability of silica monoliths containing micro- and nano-pores. Journal of Porous Materials, 18(4), 501-508. https://doi.org/10.1007/s10934-010-9403-3
|Journal Article Type||Article|
|Online Publication Date||Aug 1, 2010|
|Journal||Journal of Porous Materials|
|Peer Reviewed||Peer Reviewed|
|Keywords||Mechanical Engineering; General Materials Science; Mechanics of Materials|
This file is under embargo due to copyright reasons.
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