Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.creator | Calderón, Matías F. | - |
| dc.creator | Zelaya, Maria Eugenia | - |
| dc.creator | Benitez, Guillermo Alfredo | - |
| dc.creator | Schilardi, Patricia Laura | - |
| dc.creator | Hernández Creus, Alberto | - |
| dc.creator | González Orive, Alejandro | - |
| dc.creator | Salvarezza, Roberto Carlos | - |
| dc.creator | Ibañez, Francisco Javier | - |
| dc.date | 2015-07-20T16:38:30Z | - |
| dc.date | 2015-07-20T16:38:30Z | - |
| dc.date | 2013-03-21 | - |
| dc.date | 2016-03-30 10:35:44.97925-03 | - |
| dc.date.accessioned | 2019-04-29T15:51:04Z | - |
| dc.date.available | 2019-04-29T15:51:04Z | - |
| dc.date.issued | 2013-03-21 | - |
| dc.identifier | Calderón, Matías F.; Zelaya, Eugenia; Benitez, Guillermo Alfredo; Schilardi, Patricia Laura; Hernández Creus, Alberto; et al.; Surface-diffusion-driven decay of high-aspect-ratio gratings: Existence of morphologically related classes; Amer Chemical Soc; Langmuir; 29; 21-3-2013; 4670-4678 | - |
| dc.identifier | 0743-7463 | - |
| dc.identifier | http://hdl.handle.net/11336/1274 | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/303688 | - |
| dc.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. | - |
| dc.description | 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; | - |
| dc.description | Fil: Zelaya, Eugenia. Comision Nacional de Energía Atómica. Gerencia del Área de Investigación y Aplicaciones No Nucleares. Gerencia de Fisica (cab); Argentina; | - |
| dc.description | 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; | - |
| dc.description | 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; | - |
| dc.description | Fil: Hernández Creus, Alberto. Universidad de La Laguna. Departamento de Química Física. Instituto de Materiales y Nanotecnología; España; | - |
| dc.description | Fil: González Orive, Alejandro. Universidad de La Laguna. Departamento de Química Física. Instituto de Materiales y Nanotecnología; España; | - |
| dc.description | 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; | - |
| dc.description | 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; | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Amer Chemical Soc | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/la304993c | - |
| dc.rights | info:eu-repo/semantics/restrictedAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.subject | Ni nanoparticles | - |
| dc.subject | XPS | - |
| dc.subject | TEM | - |
| dc.subject | AFM | - |
| dc.subject | Físico-Química, Ciencia de los Polímeros, Electroquímica | - |
| dc.subject | Ciencias Químicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | Surface-diffusion-driven decay of high-aspect-ratio gratings: Existence of morphologically related classes | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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