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  An attempt to alter the gas separation of mesoporous glass membranes by amine modification

Stoltenberg, D., & Seidel-Morgenstern, A. (2012). An attempt to alter the gas separation of mesoporous glass membranes by amine modification. Microporous and Mesoporous Materials, 154, 148-152. doi:10.1016/j.micromeso.2011.11.013.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-89D7-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0014-B396-D
Genre: Journal Article

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 Creators:
Stoltenberg, D.1, Author              
Seidel-Morgenstern, A.1, 2, Author              
Affiliations:
1Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society, ou_1738150              
2Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              

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Free keywords: Surface modification; Porous glass; Gas separation; Carbon dioxide
 Abstract: Mesoporous glass membranes were synthesized and used to study the influence of an altered surface chemistry on adsorption and diffusion properties. A modification with a silane possessing high amine content was conducted to enhance the interaction with adsorbable gases. The obtained membranes were characterized by their adsorption equilibrium properties and their permeabilities for the gas pair carbon dioxide and nitrogen in single gas and binary mixture permeation experiments. The modified surface induced a reversal in the temperature dependence of the membrane selectivity. The strong adsorption on the modified surface led to a hindered carbon dioxide transport at lower temperatures and an accelerated transport at higher temperatures. Due to the limited amount of grafted adsorption sites on the modified membranes this effect was pronounced at low partial pressures of carbon dioxide. Copyright © 2011 Elsevier Inc. All rights reserved. [accessed December 7th 2011]

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Language(s): eng - English
 Dates: 2012
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 573973
DOI: 10.1016/j.micromeso.2011.11.013
Other: 9/12
 Degree: -

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Title: Microporous and Mesoporous Materials
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 154 Sequence Number: - Start / End Page: 148 - 152 Identifier: ISSN: 1387-1811
CoNE: https://pure.mpg.de/cone/journals/resource/954926228401