Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions

A study of the stability of calcium carbonate polymorphs formed as a result of the carbonation process from an alcoholic colloidal solution of nanocrystals of Ca(OH)2 in low relative humidity (RH) conditions (33% and 54% RH) is presented in this research. The crystalline behavior, the time dependenc...

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Detalles Bibliográficos
Autores: Gómez Villalba, Luz Stella, López-Arce, Paula, Fort González, Rafael
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/115834
Acceso en línea:http://hdl.handle.net/10261/115834
Access Level:acceso abierto
Palabra clave:Condensed Matter Physics
Characterization and Evaluation of Materials
Nanotechnology
Surfaces and Interfaces
Optical and Electronic Materials
Operating Procedures
Materials Treatment
Thin Films
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spelling Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditionsGómez Villalba, Luz StellaLópez-Arce, PaulaFort González, RafaelCondensed Matter PhysicsCharacterization and Evaluation of MaterialsNanotechnologySurfaces and InterfacesOptical and Electronic MaterialsOperating ProceduresMaterials TreatmentThin FilmsA study of the stability of calcium carbonate polymorphs formed as a result of the carbonation process from an alcoholic colloidal solution of nanocrystals of Ca(OH)2 in low relative humidity (RH) conditions (33% and 54% RH) is presented in this research. The crystalline behavior, the time dependence of nucleation and the phases’ transformations as a result of exposure to low humidity conditions are evaluated. The carbonation process is slow, starting with the nucleation of amorphous calcium carbonate, associated to an amorphization process that affects both the portlandite (Ca(OH)2) and the initial unstable CaCO3 polymorphs. The excess of alcohol in the solution decreases the surface tension and the nucleation is accelerated by the fast evaporation of the solvent, which avoids the particles to diffuse to their lowest energy sites, giving smaller particles with lower crystallinity as RH decreases.Government of the Community of Madrid (Spain), the GEOMATERIALES (S2009/MAT-1629/GEOMATERIALES) and CONSOLIDER-TCP (CSD2007-0058) programmes and to the JAE-Doc CSIC contract.Peer ReviewedSpringer Nature2015201520112015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/115834reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1158342026-05-22T06:33:51Z
dc.title.none.fl_str_mv Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions
title Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions
spellingShingle Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions
Gómez Villalba, Luz Stella
Condensed Matter Physics
Characterization and Evaluation of Materials
Nanotechnology
Surfaces and Interfaces
Optical and Electronic Materials
Operating Procedures
Materials Treatment
Thin Films
title_short Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions
title_full Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions
title_fullStr Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions
title_full_unstemmed Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions
title_sort Nucleation of CaCO3 polymorphs from a colloidal alcoholic solution of Ca(OH)2 nanocrystals exposed to low humidity conditions
dc.creator.none.fl_str_mv Gómez Villalba, Luz Stella
López-Arce, Paula
Fort González, Rafael
author Gómez Villalba, Luz Stella
author_facet Gómez Villalba, Luz Stella
López-Arce, Paula
Fort González, Rafael
author_role author
author2 López-Arce, Paula
Fort González, Rafael
author2_role author
author
dc.subject.none.fl_str_mv Condensed Matter Physics
Characterization and Evaluation of Materials
Nanotechnology
Surfaces and Interfaces
Optical and Electronic Materials
Operating Procedures
Materials Treatment
Thin Films
topic Condensed Matter Physics
Characterization and Evaluation of Materials
Nanotechnology
Surfaces and Interfaces
Optical and Electronic Materials
Operating Procedures
Materials Treatment
Thin Films
description A study of the stability of calcium carbonate polymorphs formed as a result of the carbonation process from an alcoholic colloidal solution of nanocrystals of Ca(OH)2 in low relative humidity (RH) conditions (33% and 54% RH) is presented in this research. The crystalline behavior, the time dependence of nucleation and the phases’ transformations as a result of exposure to low humidity conditions are evaluated. The carbonation process is slow, starting with the nucleation of amorphous calcium carbonate, associated to an amorphization process that affects both the portlandite (Ca(OH)2) and the initial unstable CaCO3 polymorphs. The excess of alcohol in the solution decreases the surface tension and the nucleation is accelerated by the fast evaporation of the solvent, which avoids the particles to diffuse to their lowest energy sites, giving smaller particles with lower crystallinity as RH decreases.
publishDate 2011
dc.date.none.fl_str_mv 2011
2015
2015
2015
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/10261/115834
url http://hdl.handle.net/10261/115834
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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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