The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface p...

Autores
Aguirre, Matías Ezequiel; Perelstein, Gonzalo Martín; Feldhoff, Armin; Condo, Adriana Maria; Tolley, Alfredo Juan; Grela, Maria Alejandra
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The room temperature spontaneous reduction of HAuCl4 in ethylene glycol in the presence of pre-formed ZnO nanoparticles is investigated by UV-vis spectroscopy. Analysis by HRTEM demonstrated that the synthesized nanostructures consist of small ZnO nanoparticles (5.0 nm) in contact with bigger (15 nm) spherical Au nanoparticles. The electronic communication between Au and ZnO blocks is confirmed by UV excitation of the colloid. These experiments indicate that ZnO nanoparticles efficiently transfer the electrons to Au nanoparticles in contact, inducing a 15 nm blue shift in the plasmon band. Titration experiments using the methylviologen couple (MV2+/MV+) are presented and analyzed to quantify the enhancement in the electron storage capability in the new nanostructure and the negative shift in the Fermi level caused by the Au loading in ZnO.
Fil: Aguirre, Matías Ezequiel. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Perelstein, Gonzalo Martín. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Feldhoff, Armin. Institut Für Physikalische Chemie Und Elektrochemie.; Alemania
Fil: Condo, Adriana Maria. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tolley, Alfredo Juan. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Grela, Maria Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Synthesis
Metal/Semiconductor nanocomposites
Plasmons
Fermi level
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:11336/37257
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/37257
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage propertiesAguirre, Matías EzequielPerelstein, Gonzalo MartínFeldhoff, ArminCondo, Adriana MariaTolley, Alfredo JuanGrela, Maria AlejandraSynthesisMetal/Semiconductor nanocompositesPlasmonsFermi levelhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The room temperature spontaneous reduction of HAuCl4 in ethylene glycol in the presence of pre-formed ZnO nanoparticles is investigated by UV-vis spectroscopy. Analysis by HRTEM demonstrated that the synthesized nanostructures consist of small ZnO nanoparticles (5.0 nm) in contact with bigger (15 nm) spherical Au nanoparticles. The electronic communication between Au and ZnO blocks is confirmed by UV excitation of the colloid. These experiments indicate that ZnO nanoparticles efficiently transfer the electrons to Au nanoparticles in contact, inducing a 15 nm blue shift in the plasmon band. Titration experiments using the methylviologen couple (MV2+/MV+) are presented and analyzed to quantify the enhancement in the electron storage capability in the new nanostructure and the negative shift in the Fermi level caused by the Au loading in ZnO.Fil: Aguirre, Matías Ezequiel. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Perelstein, Gonzalo Martín. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Feldhoff, Armin. Institut Für Physikalische Chemie Und Elektrochemie.; AlemaniaFil: Condo, Adriana Maria. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Tolley, Alfredo Juan. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Grela, Maria Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaRoyal Society of Chemistry2015-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/37257Aguirre, Matías Ezequiel; Perelstein, Gonzalo Martín; Feldhoff, Armin; Condo, Adriana Maria; Tolley, Alfredo Juan; et al.; The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties; Royal Society of Chemistry; New Journal of Chemistry; 39; 2; 2-2015; 909-9141144-0546CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/c4nj01663ginfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2015/NJ/C4NJ01663Ginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:29:03Zoai:ri.conicet.gov.ar:11336/37257instacron: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:34982025-10-15 15:29:03.295CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties
title The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties
spellingShingle The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties
Aguirre, Matías Ezequiel
Synthesis
Metal/Semiconductor nanocomposites
Plasmons
Fermi level
title_short The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties
title_full The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties
title_fullStr The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties
title_full_unstemmed The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties
title_sort The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties
dc.creator.none.fl_str_mv Aguirre, Matías Ezequiel
Perelstein, Gonzalo Martín
Feldhoff, Armin
Condo, Adriana Maria
Tolley, Alfredo Juan
Grela, Maria Alejandra
author Aguirre, Matías Ezequiel
author_facet Aguirre, Matías Ezequiel
Perelstein, Gonzalo Martín
Feldhoff, Armin
Condo, Adriana Maria
Tolley, Alfredo Juan
Grela, Maria Alejandra
author_role author
author2 Perelstein, Gonzalo Martín
Feldhoff, Armin
Condo, Adriana Maria
Tolley, Alfredo Juan
Grela, Maria Alejandra
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Synthesis
Metal/Semiconductor nanocomposites
Plasmons
Fermi level
topic Synthesis
Metal/Semiconductor nanocomposites
Plasmons
Fermi level
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The room temperature spontaneous reduction of HAuCl4 in ethylene glycol in the presence of pre-formed ZnO nanoparticles is investigated by UV-vis spectroscopy. Analysis by HRTEM demonstrated that the synthesized nanostructures consist of small ZnO nanoparticles (5.0 nm) in contact with bigger (15 nm) spherical Au nanoparticles. The electronic communication between Au and ZnO blocks is confirmed by UV excitation of the colloid. These experiments indicate that ZnO nanoparticles efficiently transfer the electrons to Au nanoparticles in contact, inducing a 15 nm blue shift in the plasmon band. Titration experiments using the methylviologen couple (MV2+/MV+) are presented and analyzed to quantify the enhancement in the electron storage capability in the new nanostructure and the negative shift in the Fermi level caused by the Au loading in ZnO.
Fil: Aguirre, Matías Ezequiel. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Perelstein, Gonzalo Martín. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Feldhoff, Armin. Institut Für Physikalische Chemie Und Elektrochemie.; Alemania
Fil: Condo, Adriana Maria. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tolley, Alfredo Juan. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Grela, Maria Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The room temperature spontaneous reduction of HAuCl4 in ethylene glycol in the presence of pre-formed ZnO nanoparticles is investigated by UV-vis spectroscopy. Analysis by HRTEM demonstrated that the synthesized nanostructures consist of small ZnO nanoparticles (5.0 nm) in contact with bigger (15 nm) spherical Au nanoparticles. The electronic communication between Au and ZnO blocks is confirmed by UV excitation of the colloid. These experiments indicate that ZnO nanoparticles efficiently transfer the electrons to Au nanoparticles in contact, inducing a 15 nm blue shift in the plasmon band. Titration experiments using the methylviologen couple (MV2+/MV+) are presented and analyzed to quantify the enhancement in the electron storage capability in the new nanostructure and the negative shift in the Fermi level caused by the Au loading in ZnO.
publishDate 2015
dc.date.none.fl_str_mv 2015-02
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/11336/37257
Aguirre, Matías Ezequiel; Perelstein, Gonzalo Martín; Feldhoff, Armin; Condo, Adriana Maria; Tolley, Alfredo Juan; et al.; The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties; Royal Society of Chemistry; New Journal of Chemistry; 39; 2; 2-2015; 909-914
1144-0546
CONICET Digital
CONICET
url http://hdl.handle.net/11336/37257
identifier_str_mv Aguirre, Matías Ezequiel; Perelstein, Gonzalo Martín; Feldhoff, Armin; Condo, Adriana Maria; Tolley, Alfredo Juan; et al.; The spontaneous room temperature reduction of HAuCl4 in ethylene glycol in the presence of ZnO: A simple strategy to obtain stable Au/ZnO nanostructures exhibiting strong surface plasmon resonance and efficient electron storage properties; Royal Society of Chemistry; New Journal of Chemistry; 39; 2; 2-2015; 909-914
1144-0546
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/c4nj01663g
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2015/NJ/C4NJ01663G
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/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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
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score 13.22299

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