Nanoscale anglesite growth on the celestite (001) face.

In situ atomic force microscopy (AFM) was used to study the growth behaviour of anglesite (PbSO4) monolayers on the celestite (001) face. Growth was promoted by exposing the celestite cleavage surfaces to aqueous solutions that were supersaturated with respect to anglesite. The solution supersaturat...

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Detalles Bibliográficos
Autores: Pina Martínez, Carlos Manuel, Rico García, Aida
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/43641
Acceso en línea:https://hdl.handle.net/20.500.14352/43641
Access Level:acceso abierto
Palabra clave:549.76
548.2
539.2
Surface topography
Atomic force microscopy
Crystal Growth Epitaxy
Aqueous solutions
Solid–liquid interfaces
Celestite
Anglesite
Cristalografía (Geología)
Mineralogía (Geología)
2506.11 Mineralogía
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oai_identifier_str oai:docta.ucm.es:20.500.14352/43641
network_acronym_str ES
network_name_str España
repository_id_str
spelling Nanoscale anglesite growth on the celestite (001) face.Pina Martínez, Carlos ManuelRico García, Aida549.76548.2539.2Surface topographyAtomic force microscopyCrystal Growth EpitaxyAqueous solutionsSolid–liquid interfacesCelestiteAnglesiteCristalografía (Geología)Mineralogía (Geología)2506.11 MineralogíaIn situ atomic force microscopy (AFM) was used to study the growth behaviour of anglesite (PbSO4) monolayers on the celestite (001) face. Growth was promoted by exposing the celestite cleavage surfaces to aqueous solutions that were supersaturated with respect to anglesite. The solution supersaturation, βang, was varied from 1.05 to 3.09 (where βang = a(Pb2+)•a(SO42-)/Ksp,ang). In this range of supersaturation, two single anglesite monolayers (~3.5 Å in height each) from pre-existent celestite steps were grown. However, for solution supersaturation of the values of βang < 1.89 +- 0.06, subsequent multilayer growth is strongly inhibited. AFM observations indicate that the inhibition of a continuous layer-by-layer growth of anglesite on the celestite (001) face is due to the in-plane strain generated by the slight difference between the anglesite and celestite lattice parameters (i.e. the linear misfits are lower than 1.1%). The minimum supersaturation required to overcome the energy barrier for multilayer growth gave an estimate of the in-plane strain energy: 11.4 +/- 0.6 mJ/m2. Once this energy barrier is overcome, a multilayer Frank–van der Merwe epitaxial growth was observed.ElsevierUniversidad Complutense de Madrid20092009-09-0120092009-09-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/43641reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/436412026-06-02T12:44:21Z
dc.title.none.fl_str_mv Nanoscale anglesite growth on the celestite (001) face.
title Nanoscale anglesite growth on the celestite (001) face.
spellingShingle Nanoscale anglesite growth on the celestite (001) face.
Pina Martínez, Carlos Manuel
549.76
548.2
539.2
Surface topography
Atomic force microscopy
Crystal Growth Epitaxy
Aqueous solutions
Solid–liquid interfaces
Celestite
Anglesite
Cristalografía (Geología)
Mineralogía (Geología)
2506.11 Mineralogía
title_short Nanoscale anglesite growth on the celestite (001) face.
title_full Nanoscale anglesite growth on the celestite (001) face.
title_fullStr Nanoscale anglesite growth on the celestite (001) face.
title_full_unstemmed Nanoscale anglesite growth on the celestite (001) face.
title_sort Nanoscale anglesite growth on the celestite (001) face.
dc.creator.none.fl_str_mv Pina Martínez, Carlos Manuel
Rico García, Aida
author Pina Martínez, Carlos Manuel
author_facet Pina Martínez, Carlos Manuel
Rico García, Aida
author_role author
author2 Rico García, Aida
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 549.76
548.2
539.2
Surface topography
Atomic force microscopy
Crystal Growth Epitaxy
Aqueous solutions
Solid–liquid interfaces
Celestite
Anglesite
Cristalografía (Geología)
Mineralogía (Geología)
2506.11 Mineralogía
topic 549.76
548.2
539.2
Surface topography
Atomic force microscopy
Crystal Growth Epitaxy
Aqueous solutions
Solid–liquid interfaces
Celestite
Anglesite
Cristalografía (Geología)
Mineralogía (Geología)
2506.11 Mineralogía
description In situ atomic force microscopy (AFM) was used to study the growth behaviour of anglesite (PbSO4) monolayers on the celestite (001) face. Growth was promoted by exposing the celestite cleavage surfaces to aqueous solutions that were supersaturated with respect to anglesite. The solution supersaturation, βang, was varied from 1.05 to 3.09 (where βang = a(Pb2+)•a(SO42-)/Ksp,ang). In this range of supersaturation, two single anglesite monolayers (~3.5 Å in height each) from pre-existent celestite steps were grown. However, for solution supersaturation of the values of βang < 1.89 +- 0.06, subsequent multilayer growth is strongly inhibited. AFM observations indicate that the inhibition of a continuous layer-by-layer growth of anglesite on the celestite (001) face is due to the in-plane strain generated by the slight difference between the anglesite and celestite lattice parameters (i.e. the linear misfits are lower than 1.1%). The minimum supersaturation required to overcome the energy barrier for multilayer growth gave an estimate of the in-plane strain energy: 11.4 +/- 0.6 mJ/m2. Once this energy barrier is overcome, a multilayer Frank–van der Merwe epitaxial growth was observed.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-09-01
2009
2009-09-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/43641
url https://hdl.handle.net/20.500.14352/43641
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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