Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles

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(vinylpyrroli...

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Autores principales:	Landa, R.A., Jorge, G.A., Molina, F.V., Antonel, P.S.
Formato:	JOUR
Materias:	Conducting materials Magnetic nanoparticles Magnetite Silver Conductivity measurements Electrical conductivity Energy dispersive X ray spectroscopy Magnetic nano-particles Polyvinyl pyrrolidone Superparamagnetic behavior Ultrasound treatments Electric conductivity Electric conductivity measurement Nanoparticles Saturation magnetization Superparamagnetism X ray spectroscopy
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00189464_v49_n8_p4602_Landa
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00189464_v49_n8_p4602_Landa
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spelling	todo:paper_00189464_v49_n8_p4602_Landa2023-10-03T14:16:21Z Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles Landa, R.A. Jorge, G.A. Molina, F.V. Antonel, P.S. 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 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. Fil:Jorge, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Molina, F.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Antonel, P.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00189464_v49_n8_p4602_Landa
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 Landa, R.A. Jorge, G.A. Molina, F.V. Antonel, P.S. Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles
topic_facet	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
description	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.
format	JOUR
author	Landa, R.A. Jorge, G.A. Molina, F.V. Antonel, P.S.
author_facet	Landa, R.A. Jorge, G.A. Molina, F.V. Antonel, P.S.
author_sort	Landa, R.A.
title	Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles
title_short	Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles
title_full	Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles
title_fullStr	Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles
title_full_unstemmed	Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles
title_sort	synthesis and properties of bifunctional fe3o4/ag nanoparticles
url	http://hdl.handle.net/20.500.12110/paper_00189464_v49_n8_p4602_Landa
work_keys_str_mv	AT landara synthesisandpropertiesofbifunctionalfe3o4agnanoparticles AT jorgega synthesisandpropertiesofbifunctionalfe3o4agnanoparticles AT molinafv synthesisandpropertiesofbifunctionalfe3o4agnanoparticles AT antonelps synthesisandpropertiesofbifunctionalfe3o4agnanoparticles
_version_	1782031117140885504

Synthesis and properties of bifunctional Fe3O4/Ag nanoparticles

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