Artículo
Synthesis and Properties of Bifunctional Fe3O4/Ag Nanoparticles
Fecha de publicación:
05/2013
Editorial:
Institute Of Electrical And Electronics Engineers
Revista:
Ieee Transactions On Magnetics
ISSN:
0018-9464
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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.
Palabras clave:
Conducting Materials
,
Magnetic Nanoparticles
,
Magnetite
,
Silver
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Colecciones
Articulos(INQUIMAE)
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA
Citación
Landa, Romina Ailín; Jorge, Guillermo Antonio; Molina, Fernando Víctor; Antonel, Paula Soledad; Synthesis and Properties of Bifunctional Fe3O4/Ag Nanoparticles; Institute Of Electrical And Electronics Engineers; Ieee Transactions On Magnetics; 49; 6; 5-2013; 4602-4605
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