O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition

Autores
Russell, Brice Adam; Villarroel Rocha, Jhonny; Sapag, Manuel Karim; Migone, Aldo D.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the results of an adsorption isotherm study of O2 on the metal–organic framework ZIF-8. This material undergoes a structural transition (“gate-opening”) as a function of increasing pressure and sorbent loading, which manifests itself in the isotherm data as a quasi-vertical substep. We used this feature to explore the temperature dependence of the structural transition; we have found that the transition occurs below the saturated vapor pressure only for temperatures below 95.39 K. The adsorption isotherm data measured at various temperatures were used also to determine the isosteric heat of adsorption of O2 on this sorbent for different sorbent loading values. We have studied the adsorption kinetics for this system, that is, how the equilibration times for adsorption change as a function of sorbent loading. The sorbent loading dependence of the equilibration time is nonmonotonic; this characteristic appears to be related to the structural transition in the sorbent.
Fil: Russell, Brice Adam. Southern Illinois University. Department Of Physics; Estados Unidos
Fil: Villarroel Rocha, Jhonny. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Fil: Migone, Aldo D.. Southern Illinois University. Department Of Physics; Estados Unidos
Materia
MOF
ADSORPTION KINETICS
ISOSTERIC HEAT
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5688
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5688
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network_name_str CONICET Digital (CONICET)
spelling O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening TransitionRussell, Brice AdamVillarroel Rocha, JhonnySapag, Manuel KarimMigone, Aldo D.MOFADSORPTION KINETICSISOSTERIC HEAThttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We present the results of an adsorption isotherm study of O2 on the metal–organic framework ZIF-8. This material undergoes a structural transition (“gate-opening”) as a function of increasing pressure and sorbent loading, which manifests itself in the isotherm data as a quasi-vertical substep. We used this feature to explore the temperature dependence of the structural transition; we have found that the transition occurs below the saturated vapor pressure only for temperatures below 95.39 K. The adsorption isotherm data measured at various temperatures were used also to determine the isosteric heat of adsorption of O2 on this sorbent for different sorbent loading values. We have studied the adsorption kinetics for this system, that is, how the equilibration times for adsorption change as a function of sorbent loading. The sorbent loading dependence of the equilibration time is nonmonotonic; this characteristic appears to be related to the structural transition in the sorbent.Fil: Russell, Brice Adam. Southern Illinois University. Department Of Physics; Estados UnidosFil: Villarroel Rocha, Jhonny. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; ArgentinaFil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; ArgentinaFil: Migone, Aldo D.. Southern Illinois University. Department Of Physics; Estados UnidosAmerican Chemical Society2014-11-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5688Russell, Brice Adam; Villarroel Rocha, Jhonny; Sapag, Manuel Karim; Migone, Aldo D.; O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition; American Chemical Society; Journal of Physical Chemistry C; 118; 49; 17-11-2014; 28603-286081932-7447enginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp508382vinfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp508382vinfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:49:02Zoai:ri.conicet.gov.ar:11336/5688instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:49:02.498CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition
title O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition
spellingShingle O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition
Russell, Brice Adam
MOF
ADSORPTION KINETICS
ISOSTERIC HEAT
title_short O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition
title_full O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition
title_fullStr O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition
title_full_unstemmed O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition
title_sort O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition
dc.creator.none.fl_str_mv Russell, Brice Adam
Villarroel Rocha, Jhonny
Sapag, Manuel Karim
Migone, Aldo D.
author Russell, Brice Adam
author_facet Russell, Brice Adam
Villarroel Rocha, Jhonny
Sapag, Manuel Karim
Migone, Aldo D.
author_role author
author2 Villarroel Rocha, Jhonny
Sapag, Manuel Karim
Migone, Aldo D.
author2_role author
author
author
dc.subject.none.fl_str_mv MOF
ADSORPTION KINETICS
ISOSTERIC HEAT
topic MOF
ADSORPTION KINETICS
ISOSTERIC HEAT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present the results of an adsorption isotherm study of O2 on the metal–organic framework ZIF-8. This material undergoes a structural transition (“gate-opening”) as a function of increasing pressure and sorbent loading, which manifests itself in the isotherm data as a quasi-vertical substep. We used this feature to explore the temperature dependence of the structural transition; we have found that the transition occurs below the saturated vapor pressure only for temperatures below 95.39 K. The adsorption isotherm data measured at various temperatures were used also to determine the isosteric heat of adsorption of O2 on this sorbent for different sorbent loading values. We have studied the adsorption kinetics for this system, that is, how the equilibration times for adsorption change as a function of sorbent loading. The sorbent loading dependence of the equilibration time is nonmonotonic; this characteristic appears to be related to the structural transition in the sorbent.
Fil: Russell, Brice Adam. Southern Illinois University. Department Of Physics; Estados Unidos
Fil: Villarroel Rocha, Jhonny. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentina
Fil: Migone, Aldo D.. Southern Illinois University. Department Of Physics; Estados Unidos
description We present the results of an adsorption isotherm study of O2 on the metal–organic framework ZIF-8. This material undergoes a structural transition (“gate-opening”) as a function of increasing pressure and sorbent loading, which manifests itself in the isotherm data as a quasi-vertical substep. We used this feature to explore the temperature dependence of the structural transition; we have found that the transition occurs below the saturated vapor pressure only for temperatures below 95.39 K. The adsorption isotherm data measured at various temperatures were used also to determine the isosteric heat of adsorption of O2 on this sorbent for different sorbent loading values. We have studied the adsorption kinetics for this system, that is, how the equilibration times for adsorption change as a function of sorbent loading. The sorbent loading dependence of the equilibration time is nonmonotonic; this characteristic appears to be related to the structural transition in the sorbent.
publishDate 2014
dc.date.none.fl_str_mv 2014-11-17
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/5688
Russell, Brice Adam; Villarroel Rocha, Jhonny; Sapag, Manuel Karim; Migone, Aldo D.; O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition; American Chemical Society; Journal of Physical Chemistry C; 118; 49; 17-11-2014; 28603-28608
1932-7447
url http://hdl.handle.net/11336/5688
identifier_str_mv Russell, Brice Adam; Villarroel Rocha, Jhonny; Sapag, Manuel Karim; Migone, Aldo D.; O2 Adsorption on ZIF-8: Temperature Dependence of the Gate-Opening Transition; American Chemical Society; Journal of Physical Chemistry C; 118; 49; 17-11-2014; 28603-28608
1932-7447
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp508382v
info:eu-repo/semantics/altIdentifier/doi/10.1021/jp508382v
info:eu-repo/semantics/altIdentifier/doi/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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