Pore connectivity and hysteresis in gas adsorption: A simple three-pore model

Nguyen, Phuong T. M., Do, D.D. and Nicholson, D. (2013) Pore connectivity and hysteresis in gas adsorption: A simple three-pore model. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 437 56-68. doi:10.1016/j.colsurfa.2013.03.028


Author Nguyen, Phuong T. M.
Do, D.D.
Nicholson, D.
Title Pore connectivity and hysteresis in gas adsorption: A simple three-pore model
Journal name Colloids and Surfaces A: Physicochemical and Engineering Aspects   Check publisher's open access policy
ISSN 0927-7757
1873-4359
Publication date 2013-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.colsurfa.2013.03.028
Open Access Status Not Open Access
Volume 437
Start page 56
End page 68
Total pages 13
Place of publication Amsterdam, The Netherlands
Publisher Elsevier BV
Language eng
Subject 1505 Marketing
Abstract We present a simulation study to investigate the significance of connectivity on the adsorption isotherm, for a collection of connected pores. By examining different sequences of connectivity in a set of three cylindrical sections of different sizes, we have been able to obtain adsorption isotherms with a variety of shapes and sizes of hysteresis loop; none of which can be reproduced by combining isotherms of the individual pores with two open ends. We conclude that there is a need to re-examine the choice of kernel in the determination of pore size distributions for systems with interconnected pore spaces.
Keyword Adsorption
Connectivity
Hysteresis loop
Mesopore
Molecular simulation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Characterization of Porous Materials: From Angstroms to Millimeters A Collection of Selected Papers Presented at the 6th International Workshop, CPM-6 April 30 – May 2nd, 2012, Delray Beach, FL, USA Co-sponsored by Quantachrome Instruments

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
 
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