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dc.contributor.author
Martínez, Eduardo David
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García Flores, Alí F.
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Pastoriza, Hernan
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Urbano, Ricardo R.
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Rettori, Carlos
dc.date.available
2019-01-21T17:51:31Z
dc.date.issued
2018-04-15
dc.identifier.citation
Martínez, Eduardo David; García Flores, Alí F.; Pastoriza, Hernan; Urbano, Ricardo R.; Rettori, Carlos; Electrothermal silver nanowire thin films for In-Situ observation of thermally-driven chemical processes; Elsevier Science Sa; Sensors and Actuators B: Chemical; 259; 15-4-2018; 475-483
dc.identifier.issn
0925-4005
dc.identifier.uri
http://hdl.handle.net/11336/68301
dc.description.abstract
We develop a novel device comprised of high optical transmittance thin films containing silver nanowires (AgNWs) in poly(methyl methacrylate) (PMMA) acting as heating elements. The electrothermal control of the AgNWs network allows us to externally trigger and tune the temperature conditions required to run chemical reactions and physicochemical processes. The device was successfully applied for the spectroscopic in-situ observation of three different model reactions: i) the thermal equilibrium of a CoCl2/HCl/H2O complex, ii) the reversible macromolecular phase transition of a pNIPAM solution, and iii) the nucleation and growth of gold nanoparticles (AuNPs). In the first case, the color of the Co2+ complex was reversibly switched from pink to blue when changing the thermal equilibrium condition. In the second one, the optical transmittance of an aqueous solution of carboxylic-terminated pNIPAM polymer was cycled from high to low as the temperature of the solution was below or above the lower critical solubility temperature (LCST) respectively. Finally, the electrothermal control on the device was applied to the study of the nucleation and growth of AuNPs in an organic solution of AuCl3 containing oleylamine acting as both the reducer and the stabilizing agent. The versatility of the electrothermal device provides an easy way to undertake thermally controlled processes and develop optical elements such as smart windows and lab-on-a-chip devices. The AgNWs-PMMA nanocomposite was also applied successfully as an electrothermal ink on the external side walls of a test tube.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science Sa
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Electrothermal Device
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Gold Nanoparticles
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Nanocomposites
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Pnipam
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Silver Nanowires
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Transparent Conductors
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Nano-materiales
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Nanotecnología
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Electrothermal silver nanowire thin films for In-Situ observation of thermally-driven chemical processes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-01-14T14:18:54Z
dc.journal.volume
259
dc.journal.pagination
475-483
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Martínez, Eduardo David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; Argentina. Universidade Estadual de Campinas; Brasil
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Fil: García Flores, Alí F.. Universidade Federal do ABC; Brasil
dc.description.fil
Fil: Pastoriza, Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Investigación y Aplicaciones No Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Bajas Temperaturas; Argentina
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Fil: Urbano, Ricardo R.. Universidade Estadual de Campinas; Brasil
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Fil: Rettori, Carlos. Universidade Estadual de Campinas; Brasil. Universidade Federal do ABC; Brasil
dc.journal.title
Sensors and Actuators B: Chemical
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S092540051732347X
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.snb.2017.12.021
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