Non-Linear Enthalpy-Entropy Correlation for Nitrogen Adsorption in Zeolites

The thermodynamics of dinitrogen adsorption in faujasite-type zeolites, Na-Y, Ca-Y and Sr-Y, were investigated by means of variable-temperature infrared spectroscopy, a technique that affords determination of the standard adsorption enthalpy (ΔH(0)) and entropy (ΔS(0)) from an analysis of the IR spe...

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Detalles Bibliográficos
Autores principales: Delgado, Montserrat R., Arean, Carlos O.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278468/
https://www.ncbi.nlm.nih.gov/pubmed/30445693
http://dx.doi.org/10.3390/molecules23112978
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author Delgado, Montserrat R.
Arean, Carlos O.
author_facet Delgado, Montserrat R.
Arean, Carlos O.
author_sort Delgado, Montserrat R.
collection PubMed
description The thermodynamics of dinitrogen adsorption in faujasite-type zeolites, Na-Y, Ca-Y and Sr-Y, were investigated by means of variable-temperature infrared spectroscopy, a technique that affords determination of the standard adsorption enthalpy (ΔH(0)) and entropy (ΔS(0)) from an analysis of the IR spectra recorded over a range of temperatures. The results obtained, taken together with previously reported values for N(2) adsorption on protonic zeolites, revealed a non-linear correlation between ΔH(0) and ΔS(0). Implications of such a correlation for gas separation and purification by adsorption in porous solids are highlighted.
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spelling pubmed-62784682018-12-13 Non-Linear Enthalpy-Entropy Correlation for Nitrogen Adsorption in Zeolites Delgado, Montserrat R. Arean, Carlos O. Molecules Article The thermodynamics of dinitrogen adsorption in faujasite-type zeolites, Na-Y, Ca-Y and Sr-Y, were investigated by means of variable-temperature infrared spectroscopy, a technique that affords determination of the standard adsorption enthalpy (ΔH(0)) and entropy (ΔS(0)) from an analysis of the IR spectra recorded over a range of temperatures. The results obtained, taken together with previously reported values for N(2) adsorption on protonic zeolites, revealed a non-linear correlation between ΔH(0) and ΔS(0). Implications of such a correlation for gas separation and purification by adsorption in porous solids are highlighted. MDPI 2018-11-15 /pmc/articles/PMC6278468/ /pubmed/30445693 http://dx.doi.org/10.3390/molecules23112978 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Delgado, Montserrat R.
Arean, Carlos O.
Non-Linear Enthalpy-Entropy Correlation for Nitrogen Adsorption in Zeolites
title Non-Linear Enthalpy-Entropy Correlation for Nitrogen Adsorption in Zeolites
title_full Non-Linear Enthalpy-Entropy Correlation for Nitrogen Adsorption in Zeolites
title_fullStr Non-Linear Enthalpy-Entropy Correlation for Nitrogen Adsorption in Zeolites
title_full_unstemmed Non-Linear Enthalpy-Entropy Correlation for Nitrogen Adsorption in Zeolites
title_short Non-Linear Enthalpy-Entropy Correlation for Nitrogen Adsorption in Zeolites
title_sort non-linear enthalpy-entropy correlation for nitrogen adsorption in zeolites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278468/
https://www.ncbi.nlm.nih.gov/pubmed/30445693
http://dx.doi.org/10.3390/molecules23112978
work_keys_str_mv AT delgadomontserratr nonlinearenthalpyentropycorrelationfornitrogenadsorptioninzeolites
AT areancarloso nonlinearenthalpyentropycorrelationfornitrogenadsorptioninzeolites

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