Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/96635
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Type: Journal article
Title: Impact of molecular clustering inside nanopores on desorption processes
Author: Tsotsalas, M.
Hejcik, P.
Sumida, K.
Kalay, Z.
Furukawa, S.
Kitagawa, S.
Citation: Journal of the American Chemical Society, 2013; 135(12):4608-4611
Publisher: American Chemical Society
Issue Date: 2013
ISSN: 0002-7863
1520-5126
Statement of
Responsibility: 
Manuel Tsotsalas, Pavel Hejcik, Kenji Sumida, Ziya Kalay, Shuhei Furukawa, and Susumu Kitagawa
Abstract: Understanding the sorption kinetics of nanoporous systems is crucial for the development and design of novel porous materials for practical applications. Here, using a porous coordination polymer/quartz crystal microbalance (PCP/QCM) hybrid device, we investigate the desorption of various vapor molecules featuring different degrees of intermolecular (hydrogen bonding) or molecule-framework interactions. Our findings reveal that strong intermolecular interactions lead to the desorption process proceeding via an unprecedented metastable state, wherein the guest molecules are clustered within the pores, causing the desorption rate to be temporarily slowed. The results demonstrate the considerable impact of the chemical nature of an adsorbate on the kinetics of desorption, which is also expected to influence the efficiency of certain processes, such as desorption by gas purge.
Rights: © 2013 American Chemical Society
RMID: 0030038960
DOI: 10.1021/ja312115x
Appears in Collections:Chemistry publications

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