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Titolo:
Polyaniline composites: improving the electrochemical properties by template synthesis
Autore:
Neves, S; Fonseca, CP; Zoppi, RA; de Torresi, SIC;
Indirizzi:
Univ Sao Paulo, Inst Quim, BR-05599970 Sao Paulo, SP, Brazil Univ Sao Paulo Sao Paulo SP Brazil BR-05599970 BC70 Sao Paulo, SP, Brazil Pontificia Univ Catolica Campinas, Inst Ciencias Biol & Quim, BR-13020904 Campinas, SP, Brazil Pontificia Univ Catolica Campinas Campinas SP Brazil BR-13020904 BCBrazil Univ Sao Francisco, Ctr Ciencias Exatas & Tecnol, LCAM, BR-13251900 Itatiba, SP, Brazil Univ Sao Francisco Itatiba SP Brazil BR-13251900 BC00 Itatiba, SP, Brazil
Titolo Testata:
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
fascicolo: 6, volume: 5, anno: 2001,
pagine: 412 - 418
SICI:
1432-8488(200108)5:6<412:PCITEP>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELECTROACTIVE POLYMER-FILMS; CONDUCTING POLYMERS; ELECTRICAL-PROPERTIES; ELECTRODES; MORPHOLOGY; NANOMATERIALS; POLYPYRROLE; SOLITONS; BEHAVIOR; GROWTH;
Keywords:
polyaniline; composite; template;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
43
Recensione:
Indirizzi per estratti:
Indirizzo: Neves, S Univ Sao Paulo, Inst Quim, CP 26077, BR-05599970 Sao Paulo, SP, Brazil Univ Sao Paulo CP 26077 Sao Paulo SP Brazil BR-05599970 BC Brazil
Citazione:
S. Neves et al., "Polyaniline composites: improving the electrochemical properties by template synthesis", J SOL ST EL, 5(6), 2001, pp. 412-418

Abstract

We have been exploring the idea of using the heterogeneous porosity of inorganic (sol-gel silica) and organic (poly(vinylidene fluoride)) films as a template for the preparation of polyaniline composites. The large size poredistribution (similar to2.5-800 nm) in both template matrices results in apart of the polyaniline growing more ordered than in films synthesized without spatial restriction. Small-angle X-ray scattering and scanning electron microscopy experiments were done to determine the extreme values of the pore diameters. Using other experimental techniques, including cyclic voltammetry, UV-Vis-NIR spectroscopy, electrochemical impedance and chronopotentiometry, we concluded that the electrochemical properties of polyaniline, such as oxidation and reduction charges, diffusion coefficient and charge-discharge capacity, are improved in these composites.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 20:03:00