Highly microporous monodisperse silica spheres synthesized by the Stöber process

Autores
Bazula, Piotr A.; Arnal, Pablo Maximiliano; Galeano, Carolina; Zibrowius, Bodo; Schmidt, Wolfgang; Schueth, Ferdi
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Silica spheres that are prepared by the Stöber process are usually considered non-porous. Here we report on a slightly modified synthesis protocol that allows preparation of microporous Stöber particles. Successive treatment with water and alcohol at room temperature results in substantial reorganization of the silica within the Stöber particles. Hydrolysis of alkoxy groups as well as condensation and re-esterification of silanol groups upon re-immersion in alcohol are crucial for that process. As the result of the silica reorganization, micropore channels are formed within the particles. After a final washing with water to remove all alkoxy groups from the particles, pure microporous silica spheres are obtained. The total pore volumes of these materials are comparable to those of zeolitic materials.
Fil: Bazula, Piotr A.. Max Planck Institut für Kohlenforschung; Alemania
Fil: Arnal, Pablo Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Max Planck Institut für Kohlenforschung; Alemania
Fil: Galeano, Carolina. Max Planck Institut für Kohlenforschung; Alemania
Fil: Zibrowius, Bodo. Max Planck Institut für Kohlenforschung; Alemania
Fil: Schmidt, Wolfgang. Max Planck Institut für Kohlenforschung; Alemania
Fil: Schueth, Ferdi. Max Planck Institut für Kohlenforschung; Alemania
Materia
Silica
Spheres
High Specific Surface Area
Thermal Stability
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:11336/33147
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/33147
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Highly microporous monodisperse silica spheres synthesized by the Stöber processBazula, Piotr A.Arnal, Pablo MaximilianoGaleano, CarolinaZibrowius, BodoSchmidt, WolfgangSchueth, FerdiSilicaSpheresHigh Specific Surface AreaThermal Stabilityhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Silica spheres that are prepared by the Stöber process are usually considered non-porous. Here we report on a slightly modified synthesis protocol that allows preparation of microporous Stöber particles. Successive treatment with water and alcohol at room temperature results in substantial reorganization of the silica within the Stöber particles. Hydrolysis of alkoxy groups as well as condensation and re-esterification of silanol groups upon re-immersion in alcohol are crucial for that process. As the result of the silica reorganization, micropore channels are formed within the particles. After a final washing with water to remove all alkoxy groups from the particles, pure microporous silica spheres are obtained. The total pore volumes of these materials are comparable to those of zeolitic materials.Fil: Bazula, Piotr A.. Max Planck Institut für Kohlenforschung; AlemaniaFil: Arnal, Pablo Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Max Planck Institut für Kohlenforschung; AlemaniaFil: Galeano, Carolina. Max Planck Institut für Kohlenforschung; AlemaniaFil: Zibrowius, Bodo. Max Planck Institut für Kohlenforschung; AlemaniaFil: Schmidt, Wolfgang. Max Planck Institut für Kohlenforschung; AlemaniaFil: Schueth, Ferdi. Max Planck Institut für Kohlenforschung; AlemaniaElsevier Science2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/zipapplication/pdfhttp://hdl.handle.net/11336/33147Schmidt, Wolfgang; Schueth, Ferdi; Galeano, Carolina; Zibrowius, Bodo; Arnal, Pablo Maximiliano; Bazula, Piotr A.; et al.; Highly microporous monodisperse silica spheres synthesized by the Stöber process; Elsevier Science; Microporous and Mesoporous Materials; 200; 7-2014; 317-3251387-1811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.micromeso.2014.07.051info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S138718111400417Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:40:23Zoai:ri.conicet.gov.ar:11336/33147instacron: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:34982025-09-17 11:40:23.666CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Highly microporous monodisperse silica spheres synthesized by the Stöber process
title Highly microporous monodisperse silica spheres synthesized by the Stöber process
spellingShingle Highly microporous monodisperse silica spheres synthesized by the Stöber process
Bazula, Piotr A.
Silica
Spheres
High Specific Surface Area
Thermal Stability
title_short Highly microporous monodisperse silica spheres synthesized by the Stöber process
title_full Highly microporous monodisperse silica spheres synthesized by the Stöber process
title_fullStr Highly microporous monodisperse silica spheres synthesized by the Stöber process
title_full_unstemmed Highly microporous monodisperse silica spheres synthesized by the Stöber process
title_sort Highly microporous monodisperse silica spheres synthesized by the Stöber process
dc.creator.none.fl_str_mv Bazula, Piotr A.
Arnal, Pablo Maximiliano
Galeano, Carolina
Zibrowius, Bodo
Schmidt, Wolfgang
Schueth, Ferdi
author Bazula, Piotr A.
author_facet Bazula, Piotr A.
Arnal, Pablo Maximiliano
Galeano, Carolina
Zibrowius, Bodo
Schmidt, Wolfgang
Schueth, Ferdi
author_role author
author2 Arnal, Pablo Maximiliano
Galeano, Carolina
Zibrowius, Bodo
Schmidt, Wolfgang
Schueth, Ferdi
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Silica
Spheres
High Specific Surface Area
Thermal Stability
topic Silica
Spheres
High Specific Surface Area
Thermal Stability
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Silica spheres that are prepared by the Stöber process are usually considered non-porous. Here we report on a slightly modified synthesis protocol that allows preparation of microporous Stöber particles. Successive treatment with water and alcohol at room temperature results in substantial reorganization of the silica within the Stöber particles. Hydrolysis of alkoxy groups as well as condensation and re-esterification of silanol groups upon re-immersion in alcohol are crucial for that process. As the result of the silica reorganization, micropore channels are formed within the particles. After a final washing with water to remove all alkoxy groups from the particles, pure microporous silica spheres are obtained. The total pore volumes of these materials are comparable to those of zeolitic materials.
Fil: Bazula, Piotr A.. Max Planck Institut für Kohlenforschung; Alemania
Fil: Arnal, Pablo Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Max Planck Institut für Kohlenforschung; Alemania
Fil: Galeano, Carolina. Max Planck Institut für Kohlenforschung; Alemania
Fil: Zibrowius, Bodo. Max Planck Institut für Kohlenforschung; Alemania
Fil: Schmidt, Wolfgang. Max Planck Institut für Kohlenforschung; Alemania
Fil: Schueth, Ferdi. Max Planck Institut für Kohlenforschung; Alemania
description Silica spheres that are prepared by the Stöber process are usually considered non-porous. Here we report on a slightly modified synthesis protocol that allows preparation of microporous Stöber particles. Successive treatment with water and alcohol at room temperature results in substantial reorganization of the silica within the Stöber particles. Hydrolysis of alkoxy groups as well as condensation and re-esterification of silanol groups upon re-immersion in alcohol are crucial for that process. As the result of the silica reorganization, micropore channels are formed within the particles. After a final washing with water to remove all alkoxy groups from the particles, pure microporous silica spheres are obtained. The total pore volumes of these materials are comparable to those of zeolitic materials.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
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/11336/33147
Schmidt, Wolfgang; Schueth, Ferdi; Galeano, Carolina; Zibrowius, Bodo; Arnal, Pablo Maximiliano; Bazula, Piotr A.; et al.; Highly microporous monodisperse silica spheres synthesized by the Stöber process; Elsevier Science; Microporous and Mesoporous Materials; 200; 7-2014; 317-325
1387-1811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/33147
identifier_str_mv Schmidt, Wolfgang; Schueth, Ferdi; Galeano, Carolina; Zibrowius, Bodo; Arnal, Pablo Maximiliano; Bazula, Piotr A.; et al.; Highly microporous monodisperse silica spheres synthesized by the Stöber process; Elsevier Science; Microporous and Mesoporous Materials; 200; 7-2014; 317-325
1387-1811
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.micromeso.2014.07.051
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S138718111400417X
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/zip
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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
_version_ 1843606761074851840
score 13.001348

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