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Landa, R.A.; Jorge, G.A.; Molina, F.V.; Antonel, P.S. "Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles" (2013) IEEE Transactions on Magnetics. 49(8):4602-4605
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Abstract:

In this work, a facile synthesis of Fe3O4/Ag nanoparticles, with magnetic properties and electrical conductivity, was successfully developed, by reducing Ag(I) ions with D-Glucose, in the presence of a dispersion of superparamagnetic Fe3O4 nanoparticles, under ultrasound treatment. Poly(vinylpyrrolidone) (PVP) was used as protecting agent and Ag(I) were incorporated in different molar ratios with respect to Fe3O4 nanoparticles. The obtained particles were characterized by XRD studies, SEM and TEM observation, Energy Dispersive X-Ray Spectroscopy (EDS), DC magnetization and conductivity measurements. From TEM and SEM observation it was found that the PVP protection has shown to be partial, as the Fe3O4 nanoparticles have a lower diameter after the reduction treatment. Despite this, the particles retain the superparamagnetic behavior and the saturation magnetization decreases as the Ag content increases. From conductivity measurements, a minimum Ag(I)/Fe3O4 molar ratio = 1.75 was needed in order to observe electrical conductivity in the metallic regime. © 1965-2012 IEEE.

Registro:

Documento: Artículo
Título:Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles
Autor:Landa, R.A.; Jorge, G.A.; Molina, F.V.; Antonel, P.S.
Filiación:Instituto de Química Física de Materiales, Ambiente y Energía (INQUIMAE), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
Instituto de Ciencias, Universidad Nacional de General Sarmiento, Los Polvorines, Buenos Aires 1633, Argentina
Palabras clave:Conducting materials; Magnetic nanoparticles; Magnetite; Silver; Conducting materials; Conductivity measurements; Electrical conductivity; Energy dispersive X ray spectroscopy; Magnetic nano-particles; Polyvinyl pyrrolidone; Superparamagnetic behavior; Ultrasound treatments; Electric conductivity; Electric conductivity measurement; Magnetite; Nanoparticles; Saturation magnetization; Superparamagnetism; X ray spectroscopy; Silver
Año:2013
Volumen:49
Número:8
Página de inicio:4602
Página de fin:4605
DOI: http://dx.doi.org/10.1109/TMAG.2013.2255588
Título revista:IEEE Transactions on Magnetics
Título revista abreviado:IEEE Trans Magn
ISSN:00189464
CODEN:IEMGA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00189464_v49_n8_p4602_Landa

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Citas:

---------- APA ----------
Landa, R.A., Jorge, G.A., Molina, F.V. & Antonel, P.S. (2013) . Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles. IEEE Transactions on Magnetics, 49(8), 4602-4605.
http://dx.doi.org/10.1109/TMAG.2013.2255588
---------- CHICAGO ----------
Landa, R.A., Jorge, G.A., Molina, F.V., Antonel, P.S. "Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles" . IEEE Transactions on Magnetics 49, no. 8 (2013) : 4602-4605.
http://dx.doi.org/10.1109/TMAG.2013.2255588
---------- MLA ----------
Landa, R.A., Jorge, G.A., Molina, F.V., Antonel, P.S. "Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles" . IEEE Transactions on Magnetics, vol. 49, no. 8, 2013, pp. 4602-4605.
http://dx.doi.org/10.1109/TMAG.2013.2255588
---------- VANCOUVER ----------
Landa, R.A., Jorge, G.A., Molina, F.V., Antonel, P.S. Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles. IEEE Trans Magn. 2013;49(8):4602-4605.
http://dx.doi.org/10.1109/TMAG.2013.2255588