Water as a potential molecular probe for functional groups on carbon surfaces

Nguyen, Van T., Horikawa, Toshihide, Do, D. D. and Nicholson, D. (2013) Water as a potential molecular probe for functional groups on carbon surfaces. Carbon, 67 72-78. doi:10.1016/j.carbon.2013.09.057

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Author Nguyen, Van T.
Horikawa, Toshihide
Do, D. D.
Nicholson, D.
Title Water as a potential molecular probe for functional groups on carbon surfaces
Journal name Carbon   Check publisher's open access policy
ISSN 0008-6223
1873-3891
Publication date 2013-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.carbon.2013.09.057
Open Access Status File (Author Post-print)
Volume 67
Start page 72
End page 78
Total pages 7
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Subject 1600 Chemistry
Abstract A new and simple method, using water as a potential molecular probe, is proposed for the determination of the concentration of surface oxygen groups on carbon adsorbents. The procedure is based on a determination of the Henry constant between a water molecule and a functional group from the volume integration of the Boltzmann factor over the accessible space around the functional group. Three porous carbons are used in this study to test the new method: A-5, RF-100 and RF-200. The results obtained are in good agreement with those measured by Boehm titration. This new method can be applied to adsorbents containing small concentrations of oxygen groups where the Boehm titration method may give unreliable results.
Keyword Activated Carbons
Water Adsorption
Vapor
Simulation
Chemistry
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2014 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
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