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Title: Study of the active carbon-water interaction by flow adsorption microcalorimetry

Abstract

The adsorption of water vapor by active carbons was studied using flow adsorption microcalorimetry, and data concerning the dependence of the heat evolution on the amount adsorbed were obtained. At small uptakes of adsorbate, the molar heat of adsorption is high indicating chemisorption and the molar heat decreases sharply with the amount sorbed and reaches a value close to that of the heat of condensation of water. The measurements also indicate the occurrence of exothermic rearrangements of the porous structure of the carbon induced by the adsorption forces.

Authors:
;
Publication Date:
Research Org.:
Microscal Ltd, London (GB)
OSTI Identifier:
20000529
Report Number(s):
CONF-9808111-
Journal ID: ISSN 0743-7463; LANGD5
Resource Type:
Journal Article
Journal Name:
Langmuir
Additional Journal Information:
Journal Volume: 15; Journal Issue: 18; Conference: Third international symposium on effects of surface heterogeneity in adsorption and catalysis on solids, Torun (PL), 08/09/1998--08/16/1998; Other Information: PBD: 31 Aug 1999; Journal ID: ISSN 0743-7463
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ACTIVATED CARBON; SORPTIVE PROPERTIES; WATER VAPOR; ADSORPTION; ADSORPTION HEAT

Citation Formats

Groszek, A.J., and Aharoni, C. Study of the active carbon-water interaction by flow adsorption microcalorimetry. United States: N. p., 1999. Web. doi:10.1021/la9813127.
Groszek, A.J., & Aharoni, C. Study of the active carbon-water interaction by flow adsorption microcalorimetry. United States. doi:10.1021/la9813127.
Groszek, A.J., and Aharoni, C. Tue . "Study of the active carbon-water interaction by flow adsorption microcalorimetry". United States. doi:10.1021/la9813127.
@article{osti_20000529,
title = {Study of the active carbon-water interaction by flow adsorption microcalorimetry},
author = {Groszek, A.J. and Aharoni, C.},
abstractNote = {The adsorption of water vapor by active carbons was studied using flow adsorption microcalorimetry, and data concerning the dependence of the heat evolution on the amount adsorbed were obtained. At small uptakes of adsorbate, the molar heat of adsorption is high indicating chemisorption and the molar heat decreases sharply with the amount sorbed and reaches a value close to that of the heat of condensation of water. The measurements also indicate the occurrence of exothermic rearrangements of the porous structure of the carbon induced by the adsorption forces.},
doi = {10.1021/la9813127},
journal = {Langmuir},
issn = {0743-7463},
number = 18,
volume = 15,
place = {United States},
year = {1999},
month = {8}
}