Intraframework migration of tetrahedral atoms in a zeolite

The transformation from a disordered into an ordered version of the zeolite natrolite occurs on prolonged heating of this material in the crystallizing medium, but not if the mother liquor is replaced by water or an alkaline solution. This process occurs for both aluminosilicate and gallosilicate an...

ver descrição completa

Detalhes bibliográficos
Autores: Shin, Jiho, Ahn, Nak Ho, Camblor, Miguel Ángel, Cho, Sung June, Hong, Suk Bong
Formato: artículo
Fecha de publicación:2014
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/181414
Acesso em linha:http://hdl.handle.net/10261/181414
Access Level:acceso abierto
Palavra-chave:Disorder‐to‐order process
Intraframework migration
Solid‐state reactions
Tetrahedral atoms
Zeolites
id ES_11ad76bbce09c8559fa407bae5f7c293
oai_identifier_str oai:digital.csic.es:10261/181414
network_acronym_str ES
network_name_str España
repository_id_str
spelling Intraframework migration of tetrahedral atoms in a zeoliteShin, JihoAhn, Nak HoCamblor, Miguel ÁngelCho, Sung JuneHong, Suk BongDisorder‐to‐order processIntraframework migrationSolid‐state reactionsTetrahedral atomsZeolitesThe transformation from a disordered into an ordered version of the zeolite natrolite occurs on prolonged heating of this material in the crystallizing medium, but not if the mother liquor is replaced by water or an alkaline solution. This process occurs for both aluminosilicate and gallosilicate analogues of natrolite. In cross experiments, the disordered Al-containing (or Ga-containing) analogue is heated while in contact with the mother liquor of the opposite analogue, that is, the Ga-containing (or Al-containing) liquor. Therefore, strong evidence for the mechanism of the ordering process was obtained, which was thus proposed to proceed by intraframework migration of tetrahedral atoms without diffusion along the pores. Migration is first triggered, then fuelled by surface rearrangement through reactions with the mother liquor, and stops when an almost fully ordered state is attained. Classical dissolution-recrystallization and Ostwald ripening processes do not appear to be relevant for this phase transformation.This work was supported by the NCRI (2012R1A3A-2048833) and BK 21-plus programs through the National Research Foundation of Korea and POSCO. PAL is supported by MSIP and POSTECH.John Wiley & SonsNational Research Foundation of KoreaMinistry of Science and Technology (South Korea)POSCOPohang University of Science and TechnologyConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920142019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/181414reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://doi.org/10.1002/anie.201404379Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1814142026-05-22T06:33:51Z
dc.title.none.fl_str_mv Intraframework migration of tetrahedral atoms in a zeolite
title Intraframework migration of tetrahedral atoms in a zeolite
spellingShingle Intraframework migration of tetrahedral atoms in a zeolite
Shin, Jiho
Disorder‐to‐order process
Intraframework migration
Solid‐state reactions
Tetrahedral atoms
Zeolites
title_short Intraframework migration of tetrahedral atoms in a zeolite
title_full Intraframework migration of tetrahedral atoms in a zeolite
title_fullStr Intraframework migration of tetrahedral atoms in a zeolite
title_full_unstemmed Intraframework migration of tetrahedral atoms in a zeolite
title_sort Intraframework migration of tetrahedral atoms in a zeolite
dc.creator.none.fl_str_mv Shin, Jiho
Ahn, Nak Ho
Camblor, Miguel Ángel
Cho, Sung June
Hong, Suk Bong
author Shin, Jiho
author_facet Shin, Jiho
Ahn, Nak Ho
Camblor, Miguel Ángel
Cho, Sung June
Hong, Suk Bong
author_role author
author2 Ahn, Nak Ho
Camblor, Miguel Ángel
Cho, Sung June
Hong, Suk Bong
author2_role author
author
author
author
dc.contributor.none.fl_str_mv National Research Foundation of Korea
Ministry of Science and Technology (South Korea)
POSCO
Pohang University of Science and Technology
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Disorder‐to‐order process
Intraframework migration
Solid‐state reactions
Tetrahedral atoms
Zeolites
topic Disorder‐to‐order process
Intraframework migration
Solid‐state reactions
Tetrahedral atoms
Zeolites
description The transformation from a disordered into an ordered version of the zeolite natrolite occurs on prolonged heating of this material in the crystallizing medium, but not if the mother liquor is replaced by water or an alkaline solution. This process occurs for both aluminosilicate and gallosilicate analogues of natrolite. In cross experiments, the disordered Al-containing (or Ga-containing) analogue is heated while in contact with the mother liquor of the opposite analogue, that is, the Ga-containing (or Al-containing) liquor. Therefore, strong evidence for the mechanism of the ordering process was obtained, which was thus proposed to proceed by intraframework migration of tetrahedral atoms without diffusion along the pores. Migration is first triggered, then fuelled by surface rearrangement through reactions with the mother liquor, and stops when an almost fully ordered state is attained. Classical dissolution-recrystallization and Ostwald ripening processes do not appear to be relevant for this phase transformation.
publishDate 2014
dc.date.none.fl_str_mv 2014
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/181414
url http://hdl.handle.net/10261/181414
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://doi.org/10.1002/anie.201404379
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
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
_version_ 1869403577821167616
score 15.812455

Registos relacionados