Thermodynamic characterization of two layers of CO2 on a graphite surface

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作者
Trinh, T.T. [1 ]
Bedeaux, D. [1 ]
Simon, J.-M. [2 ]
Kjelstrup, S. [1 ,3 ]
机构
[1] Department of Chemistry, Norwegian University of Science and Technology, Trondheim, Norway
[2] Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR-6303 CNRS-Université de Bourgogne, Dijon, France
[3] Department of Process and Energy Laboratory, Delft University of Technology, Delft, Netherlands
关键词
Density profile - Entropy and enthalpies - Graphite surfaces - Small systems - Thermodynamic characterization;
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摘要
We find by examination of density profiles that carbon dioxide adsorbs on graphite in two distinct layers. We report the activity coefficient, entropy and enthalpy for CO2 in each layer using a convenient computational method, the Small System Method, thereby extending this method to surfaces. This opens up the possibility to study thermodynamic properties for a wide range of surface phenomena. © 2014 The Authors.
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页码:214 / 218
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