In this paper, we report on the catalytic activity of MFe2O4 nanoparticles (M = Mn, Ni, Cu, Zn, Mg) in the oxidative polymerization of N-(4-aminophenyl)aniline yielding polyaniline/nanoparticle composites. Hydrogen peroxide is used as the oxidizing agent and ferrite nanoparticles play the dual role of reaction catalysts and fillers. The obtained polyaniline/MFe2O4 composites maintained the pristine size of the ferrite crystallites and showed a modest conductive behavior. Polyaniline/MFe2O4 (M = Mn, Ni) composites displayed good dispersion of the nanoparticles in the polyaniline matrix and magnetic hardness intermediate between those of soft M = Fe and hard M = Co composites, evidencing the tunability of the magnetic properties.

Nanoferrites as Catalysts and Fillers for Polyaniline/Nanoparticle Composites Preparation / E. Falletta, A. Ponti, A. Sironi, A. M. Ferretti, C. Della Pina. - In: JOURNAL OF ADVANCED CATALYSIS SCIENCE AND TECHNOLOGY. - ISSN 2408-9834. - 2:2(2015 Sep 30), pp. 8-16.

Nanoferrites as Catalysts and Fillers for Polyaniline/Nanoparticle Composites Preparation

E. Falletta;A. Sironi;C. Della Pina
2015-09-30

Abstract

In this paper, we report on the catalytic activity of MFe2O4 nanoparticles (M = Mn, Ni, Cu, Zn, Mg) in the oxidative polymerization of N-(4-aminophenyl)aniline yielding polyaniline/nanoparticle composites. Hydrogen peroxide is used as the oxidizing agent and ferrite nanoparticles play the dual role of reaction catalysts and fillers. The obtained polyaniline/MFe2O4 composites maintained the pristine size of the ferrite crystallites and showed a modest conductive behavior. Polyaniline/MFe2O4 (M = Mn, Ni) composites displayed good dispersion of the nanoparticles in the polyaniline matrix and magnetic hardness intermediate between those of soft M = Fe and hard M = Co composites, evidencing the tunability of the magnetic properties.
catalysis; composites; ferrites; nanoparticles; polyaniline
Settore CHIM/03 - Chimica Generale e Inorganica
Settore CHIM/05 - Scienza e Tecnologia dei Materiali Polimerici
Settore CHIM/02 - Chimica Fisica
JOURNAL OF ADVANCED CATALYSIS SCIENCE AND TECHNOLOGY
10.15379/2408-9834.2015.02.02.02
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/322958
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