Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution

The discovery of swelling brittle mica, Na-Mica-4, has been one of the most significant advances in the pursuit for a material with high ion-exchange capacity. For technical applications, the control of the phase evolution during the synthesis is crucial. The main aim of this study was to investigat...

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Detalles Bibliográficos
Autores: Naranjo, Moisés, Castro Arroyo, Miguel Ángel, Cota, Agustín, Osuna, Francisco J., Pavón, Esperanza, Alba, María D.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/117338
Acceso en línea:http://hdl.handle.net/10261/117338
Access Level:acceso abierto
Palabra clave:Swelling mica
XRD
MAS
NMR
Charge distribution
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repository_id_str
spelling Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distributionNaranjo, MoisésCastro Arroyo, Miguel ÁngelCota, AgustínOsuna, Francisco J.Pavón, EsperanzaAlba, María D.Swelling micaXRDMASNMRCharge distributionThe discovery of swelling brittle mica, Na-Mica-4, has been one of the most significant advances in the pursuit for a material with high ion-exchange capacity. For technical applications, the control of the phase evolution during the synthesis is crucial. The main aim of this study was to investigate the effect of Na-Mica-4 synthesis temperature on the crystalline phase evolution, Si–Al distribution in the tetrahedral sheet, the Al occupancy between tetrahedral and octahedral sites and their effects on the interlayer space composition. The synthesis temperature range between 600 °C and 900 °C was explored. At low temperature (600 °C), the precursors were transformed in a low-charged swelling 2:1 phyllosilicate, saponite type, which was progressively aluminum enriched with temperature. The high-charged swelling mica was completely formed at 700 °C, although a minor anhydrous contribution remained up to 850 °C. Up to 800 °C, silicates and fluorides secondary phases were detected as a minor contribution.Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201520152015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/117338reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.micromeso.2014.11.026Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1173382026-05-22T06:33:51Z
dc.title.none.fl_str_mv Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution
title Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution
spellingShingle Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution
Naranjo, Moisés
Swelling mica
XRD
MAS
NMR
Charge distribution
title_short Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution
title_full Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution
title_fullStr Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution
title_full_unstemmed Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution
title_sort Synthesis temperature effect on Na-Mica-4 crystallinity and heteroatom distribution
dc.creator.none.fl_str_mv Naranjo, Moisés
Castro Arroyo, Miguel Ángel
Cota, Agustín
Osuna, Francisco J.
Pavón, Esperanza
Alba, María D.
author Naranjo, Moisés
author_facet Naranjo, Moisés
Castro Arroyo, Miguel Ángel
Cota, Agustín
Osuna, Francisco J.
Pavón, Esperanza
Alba, María D.
author_role author
author2 Castro Arroyo, Miguel Ángel
Cota, Agustín
Osuna, Francisco J.
Pavón, Esperanza
Alba, María D.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Swelling mica
XRD
MAS
NMR
Charge distribution
topic Swelling mica
XRD
MAS
NMR
Charge distribution
description The discovery of swelling brittle mica, Na-Mica-4, has been one of the most significant advances in the pursuit for a material with high ion-exchange capacity. For technical applications, the control of the phase evolution during the synthesis is crucial. The main aim of this study was to investigate the effect of Na-Mica-4 synthesis temperature on the crystalline phase evolution, Si–Al distribution in the tetrahedral sheet, the Al occupancy between tetrahedral and octahedral sites and their effects on the interlayer space composition. The synthesis temperature range between 600 °C and 900 °C was explored. At low temperature (600 °C), the precursors were transformed in a low-charged swelling 2:1 phyllosilicate, saponite type, which was progressively aluminum enriched with temperature. The high-charged swelling mica was completely formed at 700 °C, although a minor anhydrous contribution remained up to 850 °C. Up to 800 °C, silicates and fluorides secondary phases were detected as a minor contribution.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/117338
url http://hdl.handle.net/10261/117338
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.micromeso.2014.11.026
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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