Adsorción física sobre sólidos: aspectos termodinámicos Physical adsorption on solids: thermodynamic aspects
<abstract language="eng">A thermodynamic formalism based on the Gibbs Dividing Surface (GDS) for the description of a solid-fluid interface is presented, so that the adsorption layer is understand as a phase and the adsorption process as the transference of components between a 3-dim...
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Sociedade Brasileira de Química
2009-01-01
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doaj-bf218c5b126d4ba29199d895f81cbad72020-11-24T23:44:18ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642009-01-013251350135510.1590/S0100-40422009000500046Adsorción física sobre sólidos: aspectos termodinámicos Physical adsorption on solids: thermodynamic aspectsJuan Miguel AriasElihu PaterninaDaniel Barragán<abstract language="eng">A thermodynamic formalism based on the Gibbs Dividing Surface (GDS) for the description of a solid-fluid interface is presented, so that the adsorption layer is understand as a phase and the adsorption process as the transference of components between a 3-dimensional phase and a 2-dimensional one. Using a state equation derived from the Henry's Law, we shall show how the Langmuir isotherm is deduced from de Gibbs isotherm. The GDS is useful also for understanding the release of heat by a system as the adsorption occurs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000500046physical adsorptionGibbs isothermisosteric enthalpy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Juan Miguel Arias Elihu Paternina Daniel Barragán |
spellingShingle |
Juan Miguel Arias Elihu Paternina Daniel Barragán Adsorción física sobre sólidos: aspectos termodinámicos Physical adsorption on solids: thermodynamic aspects Química Nova physical adsorption Gibbs isotherm isosteric enthalpy |
author_facet |
Juan Miguel Arias Elihu Paternina Daniel Barragán |
author_sort |
Juan Miguel Arias |
title |
Adsorción física sobre sólidos: aspectos termodinámicos Physical adsorption on solids: thermodynamic aspects |
title_short |
Adsorción física sobre sólidos: aspectos termodinámicos Physical adsorption on solids: thermodynamic aspects |
title_full |
Adsorción física sobre sólidos: aspectos termodinámicos Physical adsorption on solids: thermodynamic aspects |
title_fullStr |
Adsorción física sobre sólidos: aspectos termodinámicos Physical adsorption on solids: thermodynamic aspects |
title_full_unstemmed |
Adsorción física sobre sólidos: aspectos termodinámicos Physical adsorption on solids: thermodynamic aspects |
title_sort |
adsorción física sobre sólidos: aspectos termodinámicos physical adsorption on solids: thermodynamic aspects |
publisher |
Sociedade Brasileira de Química |
series |
Química Nova |
issn |
0100-4042 1678-7064 |
publishDate |
2009-01-01 |
description |
<abstract language="eng">A thermodynamic formalism based on the Gibbs Dividing Surface (GDS) for the description of a solid-fluid interface is presented, so that the adsorption layer is understand as a phase and the adsorption process as the transference of components between a 3-dimensional phase and a 2-dimensional one. Using a state equation derived from the Henry's Law, we shall show how the Langmuir isotherm is deduced from de Gibbs isotherm. The GDS is useful also for understanding the release of heat by a system as the adsorption occurs. |
topic |
physical adsorption Gibbs isotherm isosteric enthalpy |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000500046 |
work_keys_str_mv |
AT juanmiguelarias adsorcionfisicasobresolidosaspectostermodinamicosphysicaladsorptiononsolidsthermodynamicaspects AT elihupaternina adsorcionfisicasobresolidosaspectostermodinamicosphysicaladsorptiononsolidsthermodynamicaspects AT danielbarragan adsorcionfisicasobresolidosaspectostermodinamicosphysicaladsorptiononsolidsthermodynamicaspects |
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1725499134296719360 |