Accessible volumes for adsorption in carbon nanopores of different geometries and wall thicknesses

Liu, Jian, LeVan, M. Douglas and Do, D. D. (2011) Accessible volumes for adsorption in carbon nanopores of different geometries and wall thicknesses. Journal of Physical Chemistry C, 115 24: 12077-12081. doi:10.1021/jp202066w


Author Liu, Jian
LeVan, M. Douglas
Do, D. D.
Title Accessible volumes for adsorption in carbon nanopores of different geometries and wall thicknesses
Journal name Journal of Physical Chemistry C   Check publisher's open access policy
ISSN 1932-7447
1932-7455
Publication date 2011-06-23
Sub-type Article (original research)
DOI 10.1021/jp202066w
Open Access Status Not Open Access
Volume 115
Issue 24
Start page 12077
End page 12081
Total pages 5
Place of publication Washington, DC, United States
Publisher American Chemical Society
Abstract The accessible pore space for Lennard-Jones gas molecules adsorbed in smooth-walled carbon nanopores in the Henrys law region is determined for slit-shaped, cylindrical, and spherical pores. The size of this space, over which the total potential is nonpositive, depends on pore geometry and number of wall layers. Pores with small surface mean curvature are more accessible than those with larger surface mean curvature. Adding layers to the wall helps to increase the accessible pore space, but this effect is small after the second layer. Limits are determined for the smallest pores having accessible space. For the slit-shaped pore with a single wall, the minimum pore half width is the same as the width of the inaccessible layer at the wall of a single graphene sheet, which is less than the Lennard-Jones solid-fluid collision diameter. In contrast, the minimum radius of a spherical pore with accessible space is the Lennard-Jones solid-fluid collision diameter.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemical Engineering Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 2 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Thu, 28 Nov 2013, 07:02:12 EST by System User on behalf of School of Chemical Engineering