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Caro, J.: Hierarchy in inorganic membranes. In: Chemical Society Reviews 45 (2016), Nr. 12, S. 3468-3478. DOI: https://doi.org/10.1039/c5cs00597c

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Sum total of downloads: 108




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Abstract: 
Thin films of a few μm thickness for particle filtration and gas separation cannot be applied as self-supporting layers since they are mechanically insufficiently strong. Therefore, these top layers for particle filtration and gas separation are usually deposited on porous mechanically strong supports with a hierarchical pore structure. To reduce the pressure drop of a gas stream over the membrane and to ensure high fluxes in filtration and gas separation, the cross section of the support is usually asymmetric or graded with a small thickness of the layer with the smallest pore size called the top layer. Since the pressure drop over a capillary with radius r is ∼r4, the layer with the smallest pore size should be as thin as possible. The disk-like planar supports are usually prepared by sequential tape casting which is an expensive technology. Tubular supports with a hierarchical cross section can be prepared in one step by hollow fiber spinning, double mantle spinning or centrifugal casting. © 2016 The Royal Society of Chemistry.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Document Type: article
Publishing status: publishedVersion
Issue Date: 2016
Appears in Collections:Naturwissenschaftliche Fakultät

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 75 69.44%
2 image of flag of China China 11 10.19%
3 image of flag of United States United States 4 3.70%
4 image of flag of Turkey Turkey 3 2.78%
5 image of flag of Norway Norway 2 1.85%
6 image of flag of Malaysia Malaysia 2 1.85%
7 image of flag of Spain Spain 2 1.85%
8 image of flag of Sweden Sweden 1 0.93%
9 image of flag of Russian Federation Russian Federation 1 0.93%
10 image of flag of Kenya Kenya 1 0.93%
    other countries 6 5.56%

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