Magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles

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Composites of ferromagnetic CoFe2O4 nanoparticles and two conducting polymers (polyethylenedioxythiophene-PEDOT- and polypyrrole-Ppy-) were prepared and characterized. Both syntheses were performed by monomer polymerization in presence of a dispersion of the magnetic nanoparticles, at different mono...

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Autores principales: Resta, I.M., Horwitz, G., Elizalde, M.L.M., Jorge, G.A., Molina, F.V., Antonel, P.S.
Formato: JOUR
Materias:
Conducting materials
ferrites
magnetic analysis
magnetic nanoparticles
Composite properties
Conducting properties
Electrical conductivity measurements
Ferrite nanoparticles
High electrical conductivity
Magnetic analysis
Magnetic nano-particles
Conducting polymers
Electric conductivity
Ferrite
Gyrators
Monomers
Nanoparticles
Polypyrroles
Synthesis (chemical)
Nanomagnetics
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00189464_v49_n8_p4598_Resta
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00189464_v49_n8_p4598_Resta
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spelling todo:paper_00189464_v49_n8_p4598_Resta2023-10-03T14:16:21Z Magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles Resta, I.M. Horwitz, G. Elizalde, M.L.M. Jorge, G.A. Molina, F.V. Antonel, P.S. Conducting materials ferrites magnetic analysis magnetic nanoparticles Composite properties Conducting materials Conducting properties Electrical conductivity measurements Ferrite nanoparticles High electrical conductivity Magnetic analysis Magnetic nano-particles Conducting polymers Electric conductivity Ferrite Gyrators Monomers Nanoparticles Polypyrroles Synthesis (chemical) Nanomagnetics Composites of ferromagnetic CoFe2O4 nanoparticles and two conducting polymers (polyethylenedioxythiophene-PEDOT- and polypyrrole-Ppy-) were prepared and characterized. Both syntheses were performed by monomer polymerization in presence of a dispersion of the magnetic nanoparticles, at different monomer: CoFe2O4 molar ratios. For PPy-composites, both the coercive field and the applied field required to reach the maximum magnetization decrease as the polymer content increases. For PEDOT-composites, the remanence ratio increases as the polymer content increases, indicating the presence of interactions related to the amount of polymer present. Electrical conductivity measurements indicate that, for both types of composites, a high polymer content gives rise to high electrical conductivity. These results indicate that the composite properties can be modulated by varying the polymer identity and the monomer: CoFe 2O4 molar ratio. © 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_p4598_Resta
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
ferrites
magnetic analysis
magnetic nanoparticles
Composite properties
Conducting materials
Conducting properties
Electrical conductivity measurements
Ferrite nanoparticles
High electrical conductivity
Magnetic analysis
Magnetic nano-particles
Conducting polymers
Electric conductivity
Ferrite
Gyrators
Monomers
Nanoparticles
Polypyrroles
Synthesis (chemical)
Nanomagnetics
spellingShingle Conducting materials
ferrites
magnetic analysis
magnetic nanoparticles
Composite properties
Conducting materials
Conducting properties
Electrical conductivity measurements
Ferrite nanoparticles
High electrical conductivity
Magnetic analysis
Magnetic nano-particles
Conducting polymers
Electric conductivity
Ferrite
Gyrators
Monomers
Nanoparticles
Polypyrroles
Synthesis (chemical)
Nanomagnetics
Resta, I.M.
Horwitz, G.
Elizalde, M.L.M.
Jorge, G.A.
Molina, F.V.
Antonel, P.S.
Magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles
topic_facet Conducting materials
ferrites
magnetic analysis
magnetic nanoparticles
Composite properties
Conducting materials
Conducting properties
Electrical conductivity measurements
Ferrite nanoparticles
High electrical conductivity
Magnetic analysis
Magnetic nano-particles
Conducting polymers
Electric conductivity
Ferrite
Gyrators
Monomers
Nanoparticles
Polypyrroles
Synthesis (chemical)
Nanomagnetics
description Composites of ferromagnetic CoFe2O4 nanoparticles and two conducting polymers (polyethylenedioxythiophene-PEDOT- and polypyrrole-Ppy-) were prepared and characterized. Both syntheses were performed by monomer polymerization in presence of a dispersion of the magnetic nanoparticles, at different monomer: CoFe2O4 molar ratios. For PPy-composites, both the coercive field and the applied field required to reach the maximum magnetization decrease as the polymer content increases. For PEDOT-composites, the remanence ratio increases as the polymer content increases, indicating the presence of interactions related to the amount of polymer present. Electrical conductivity measurements indicate that, for both types of composites, a high polymer content gives rise to high electrical conductivity. These results indicate that the composite properties can be modulated by varying the polymer identity and the monomer: CoFe 2O4 molar ratio. © 1965-2012 IEEE.
format JOUR
author Resta, I.M.
Horwitz, G.
Elizalde, M.L.M.
Jorge, G.A.
Molina, F.V.
Antonel, P.S.
author_facet Resta, I.M.
Horwitz, G.
Elizalde, M.L.M.
Jorge, G.A.
Molina, F.V.
Antonel, P.S.
author_sort Resta, I.M.
title Magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles
title_short Magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles
title_full Magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles
title_fullStr Magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles
title_full_unstemmed Magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles
title_sort magnetic and conducting properties of composites of conducting polymers and ferrite nanoparticles
url http://hdl.handle.net/20.500.12110/paper_00189464_v49_n8_p4598_Resta
work_keys_str_mv AT restaim magneticandconductingpropertiesofcompositesofconductingpolymersandferritenanoparticles
AT horwitzg magneticandconductingpropertiesofcompositesofconductingpolymersandferritenanoparticles
AT elizaldemlm magneticandconductingpropertiesofcompositesofconductingpolymersandferritenanoparticles
AT jorgega magneticandconductingpropertiesofcompositesofconductingpolymersandferritenanoparticles
AT molinafv magneticandconductingpropertiesofcompositesofconductingpolymersandferritenanoparticles
AT antonelps magneticandconductingpropertiesofcompositesofconductingpolymersandferritenanoparticles
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