Adsorption Potential Distributions for Silicas and Organosilicas

Adsorption potential distributions (APDs) were calculated from nitrogen adsorption isotherms for macroporous silicas, and for disordered and ordered mesoporous silicas without and with organic groups attached to the surface. It was shown that the APDs for porous silicas and organosilicas differ sign...

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Main Authors: Jerzy Choma, Mietek Jaroniec
Format: Article
Language:English
Published: SAGE Publishing 2007-10-01
Series:Adsorption Science & Technology
Online Access:https://doi.org/10.1260/0263-6174.25.8.573
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author Jerzy Choma
Mietek Jaroniec
author_facet Jerzy Choma
Mietek Jaroniec
author_sort Jerzy Choma
collection DOAJ
description Adsorption potential distributions (APDs) were calculated from nitrogen adsorption isotherms for macroporous silicas, and for disordered and ordered mesoporous silicas without and with organic groups attached to the surface. It was shown that the APDs for porous silicas and organosilicas differ significantly from those obtained for carbonaceous materials, especially in the range of high adsorption potentials which correspond to low relative pressures. Although the high adsorption potential portions of APDs for porous siliceous materials are less informative than those for carbons, they are still useful for monitoring the changes in the surface properties due to the attachment of various organic groups.
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institution Kabale University
issn 0263-6174
2048-4038
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publishDate 2007-10-01
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series Adsorption Science & Technology
spelling doaj-art-94be29674eb8479e93d11f965cc865e72025-02-03T10:07:35ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40382007-10-012510.1260/0263-6174.25.8.573Adsorption Potential Distributions for Silicas and OrganosilicasJerzy Choma0Mietek Jaroniec1 Institute of Chemistry, Swietokrzyska Academy, 25-126 Kielce, Poland Department of Chemistry, Kent State University, Kent, OH 44242, U.S.A.Adsorption potential distributions (APDs) were calculated from nitrogen adsorption isotherms for macroporous silicas, and for disordered and ordered mesoporous silicas without and with organic groups attached to the surface. It was shown that the APDs for porous silicas and organosilicas differ significantly from those obtained for carbonaceous materials, especially in the range of high adsorption potentials which correspond to low relative pressures. Although the high adsorption potential portions of APDs for porous siliceous materials are less informative than those for carbons, they are still useful for monitoring the changes in the surface properties due to the attachment of various organic groups.https://doi.org/10.1260/0263-6174.25.8.573
spellingShingle Jerzy Choma
Mietek Jaroniec
Adsorption Potential Distributions for Silicas and Organosilicas
Adsorption Science & Technology
title Adsorption Potential Distributions for Silicas and Organosilicas
title_full Adsorption Potential Distributions for Silicas and Organosilicas
title_fullStr Adsorption Potential Distributions for Silicas and Organosilicas
title_full_unstemmed Adsorption Potential Distributions for Silicas and Organosilicas
title_short Adsorption Potential Distributions for Silicas and Organosilicas
title_sort adsorption potential distributions for silicas and organosilicas
url https://doi.org/10.1260/0263-6174.25.8.573
work_keys_str_mv AT jerzychoma adsorptionpotentialdistributionsforsilicasandorganosilicas
AT mietekjaroniec adsorptionpotentialdistributionsforsilicasandorganosilicas