New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules

Autores
Calderón, Matías F.; Zelaya, Maria Eugenia; Benitez, Guillermo Alfredo; Schilardi, Patricia Laura; Hernández Creus, Alberto; González Orive, Alejandro; Salvarezza, Roberto Carlos; Ibañez, Francisco Javier
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Here we explore the synthesis of alkanethiolcoated Ni NPs following the one-phase reaction method by Brust et al.1 The reduction of NiCl2 with NaBH4 in the presence of dodecanethiol (C12SH) yields a complex product that is difficult to identify as illustrated in the figure of merit. We synthesized Ni(II) dodecanethiolate (C12S) (without the addition of NaBH4) for comparison and performed an exhaustive characterization with TEM, HR-TEM, AFM, MFM, XPS, XRD, UV−vis, magnetism, and FT-IR. It is found that the organic coating is not quite a well-organized self-assembled monolayer (SAM) surrounding the Ni cluster as previously reported.2,3 XPS and XRD data show slight differences between both syntheses; however, Ni(II) thiolate appears to be more stable than reduced Ni when exposed to ambient air, indicating the propensity of metallic Ni to oxidize. It has been shown that irradiating with TEM electrons over various metal thiolates leads to nanoparticle formation.4 We irradiated over Ni(II) thiolate and observed no evidence of NP formation whereas irradiating a reduced Ni sample exhibited an ∼3.0 nm nanoparticle diameter. Magnetism studies showed a difference between both samples, indicating ferromagnetic character for the reduced Ni sample. According to our results, the product of the synthesis is comprised of ultrasmall metallic clusters embedded in some form of Ni(II) C12S. In this work, we open a discussion of the chemical nature of the core and the shell in the synthesis of Ni NPs protected with organomercaptan molecules.
Fil: Calderón, Matías F.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Fil: Zelaya, Maria Eugenia. Comision Nacional de Energía Atómica. Gerencia del Área de Investigación y Aplicaciones No Nucleares. Gerencia de Fisica (cab); Argentina
Fil: Benitez, Guillermo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Fil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Fil: Hernández Creus, Alberto. Universidad de La Laguna; España
Fil: González Orive, Alejandro. Universidad de La Laguna; España
Fil: Salvarezza, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Fil: Ibañez, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Materia
Ni Nanoparticles
Xps
Tem
Afm
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:11336/1274
Acceder
id CONICETDig_a7dcdb77399a8da0e5b1c99f9d96f973
oai_identifier_str oai:ri.conicet.gov.ar:11336/1274
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling New findings for the composition and structure of Ni nanoparticles protected with organomercaptan moleculesCalderón, Matías F.Zelaya, Maria EugeniaBenitez, Guillermo AlfredoSchilardi, Patricia LauraHernández Creus, AlbertoGonzález Orive, AlejandroSalvarezza, Roberto CarlosIbañez, Francisco JavierNi NanoparticlesXpsTemAfmhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Here we explore the synthesis of alkanethiolcoated Ni NPs following the one-phase reaction method by Brust et al.1 The reduction of NiCl2 with NaBH4 in the presence of dodecanethiol (C12SH) yields a complex product that is difficult to identify as illustrated in the figure of merit. We synthesized Ni(II) dodecanethiolate (C12S) (without the addition of NaBH4) for comparison and performed an exhaustive characterization with TEM, HR-TEM, AFM, MFM, XPS, XRD, UV−vis, magnetism, and FT-IR. It is found that the organic coating is not quite a well-organized self-assembled monolayer (SAM) surrounding the Ni cluster as previously reported.2,3 XPS and XRD data show slight differences between both syntheses; however, Ni(II) thiolate appears to be more stable than reduced Ni when exposed to ambient air, indicating the propensity of metallic Ni to oxidize. It has been shown that irradiating with TEM electrons over various metal thiolates leads to nanoparticle formation.4 We irradiated over Ni(II) thiolate and observed no evidence of NP formation whereas irradiating a reduced Ni sample exhibited an ∼3.0 nm nanoparticle diameter. Magnetism studies showed a difference between both samples, indicating ferromagnetic character for the reduced Ni sample. According to our results, the product of the synthesis is comprised of ultrasmall metallic clusters embedded in some form of Ni(II) C12S. In this work, we open a discussion of the chemical nature of the core and the shell in the synthesis of Ni NPs protected with organomercaptan molecules.Fil: Calderón, Matías F.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaFil: Zelaya, Maria Eugenia. Comision Nacional de Energía Atómica. Gerencia del Área de Investigación y Aplicaciones No Nucleares. Gerencia de Fisica (cab); ArgentinaFil: Benitez, Guillermo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaFil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaFil: Hernández Creus, Alberto. Universidad de La Laguna; EspañaFil: González Orive, Alejandro. Universidad de La Laguna; EspañaFil: Salvarezza, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaFil: Ibañez, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; ArgentinaAmerican Chemical Society2013-03-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1274Calderón, Matías F.; Zelaya, Maria Eugenia; Benitez, Guillermo Alfredo; Schilardi, Patricia Laura; Hernández Creus, Alberto; et al.; New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules; American Chemical Society; Langmuir; 29; 15; 21-3-2013; 4670-46780743-7463enginfo:eu-repo/semantics/altIdentifier/doi/10.1021/la304993cinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la304993cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:19Zoai:ri.conicet.gov.ar:11336/1274instacron: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:34982025-09-29 09:39:20.203CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules
title New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules
spellingShingle New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules
Calderón, Matías F.
Ni Nanoparticles
Xps
Tem
Afm
title_short New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules
title_full New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules
title_fullStr New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules
title_full_unstemmed New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules
title_sort New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules
dc.creator.none.fl_str_mv Calderón, Matías F.
Zelaya, Maria Eugenia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
Hernández Creus, Alberto
González Orive, Alejandro
Salvarezza, Roberto Carlos
Ibañez, Francisco Javier
author Calderón, Matías F.
author_facet Calderón, Matías F.
Zelaya, Maria Eugenia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
Hernández Creus, Alberto
González Orive, Alejandro
Salvarezza, Roberto Carlos
Ibañez, Francisco Javier
author_role author
author2 Zelaya, Maria Eugenia
Benitez, Guillermo Alfredo
Schilardi, Patricia Laura
Hernández Creus, Alberto
González Orive, Alejandro
Salvarezza, Roberto Carlos
Ibañez, Francisco Javier
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ni Nanoparticles
Xps
Tem
Afm
topic Ni Nanoparticles
Xps
Tem
Afm
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Here we explore the synthesis of alkanethiolcoated Ni NPs following the one-phase reaction method by Brust et al.1 The reduction of NiCl2 with NaBH4 in the presence of dodecanethiol (C12SH) yields a complex product that is difficult to identify as illustrated in the figure of merit. We synthesized Ni(II) dodecanethiolate (C12S) (without the addition of NaBH4) for comparison and performed an exhaustive characterization with TEM, HR-TEM, AFM, MFM, XPS, XRD, UV−vis, magnetism, and FT-IR. It is found that the organic coating is not quite a well-organized self-assembled monolayer (SAM) surrounding the Ni cluster as previously reported.2,3 XPS and XRD data show slight differences between both syntheses; however, Ni(II) thiolate appears to be more stable than reduced Ni when exposed to ambient air, indicating the propensity of metallic Ni to oxidize. It has been shown that irradiating with TEM electrons over various metal thiolates leads to nanoparticle formation.4 We irradiated over Ni(II) thiolate and observed no evidence of NP formation whereas irradiating a reduced Ni sample exhibited an ∼3.0 nm nanoparticle diameter. Magnetism studies showed a difference between both samples, indicating ferromagnetic character for the reduced Ni sample. According to our results, the product of the synthesis is comprised of ultrasmall metallic clusters embedded in some form of Ni(II) C12S. In this work, we open a discussion of the chemical nature of the core and the shell in the synthesis of Ni NPs protected with organomercaptan molecules.
Fil: Calderón, Matías F.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Fil: Zelaya, Maria Eugenia. Comision Nacional de Energía Atómica. Gerencia del Área de Investigación y Aplicaciones No Nucleares. Gerencia de Fisica (cab); Argentina
Fil: Benitez, Guillermo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Fil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Fil: Hernández Creus, Alberto. Universidad de La Laguna; España
Fil: González Orive, Alejandro. Universidad de La Laguna; España
Fil: Salvarezza, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
Fil: Ibañez, Francisco Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicaciones; Argentina
description Here we explore the synthesis of alkanethiolcoated Ni NPs following the one-phase reaction method by Brust et al.1 The reduction of NiCl2 with NaBH4 in the presence of dodecanethiol (C12SH) yields a complex product that is difficult to identify as illustrated in the figure of merit. We synthesized Ni(II) dodecanethiolate (C12S) (without the addition of NaBH4) for comparison and performed an exhaustive characterization with TEM, HR-TEM, AFM, MFM, XPS, XRD, UV−vis, magnetism, and FT-IR. It is found that the organic coating is not quite a well-organized self-assembled monolayer (SAM) surrounding the Ni cluster as previously reported.2,3 XPS and XRD data show slight differences between both syntheses; however, Ni(II) thiolate appears to be more stable than reduced Ni when exposed to ambient air, indicating the propensity of metallic Ni to oxidize. It has been shown that irradiating with TEM electrons over various metal thiolates leads to nanoparticle formation.4 We irradiated over Ni(II) thiolate and observed no evidence of NP formation whereas irradiating a reduced Ni sample exhibited an ∼3.0 nm nanoparticle diameter. Magnetism studies showed a difference between both samples, indicating ferromagnetic character for the reduced Ni sample. According to our results, the product of the synthesis is comprised of ultrasmall metallic clusters embedded in some form of Ni(II) C12S. In this work, we open a discussion of the chemical nature of the core and the shell in the synthesis of Ni NPs protected with organomercaptan molecules.
publishDate 2013
dc.date.none.fl_str_mv 2013-03-21
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/11336/1274
Calderón, Matías F.; Zelaya, Maria Eugenia; Benitez, Guillermo Alfredo; Schilardi, Patricia Laura; Hernández Creus, Alberto; et al.; New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules; American Chemical Society; Langmuir; 29; 15; 21-3-2013; 4670-4678
0743-7463
url http://hdl.handle.net/11336/1274
identifier_str_mv Calderón, Matías F.; Zelaya, Maria Eugenia; Benitez, Guillermo Alfredo; Schilardi, Patricia Laura; Hernández Creus, Alberto; et al.; New findings for the composition and structure of Ni nanoparticles protected with organomercaptan molecules; American Chemical Society; Langmuir; 29; 15; 21-3-2013; 4670-4678
0743-7463
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/la304993c
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/la304993c
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
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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
_version_ 1844613244415639552
score 13.070432

Publicaciones similares