The oxidative polymerization of aniline was investigated using H2O2 as an oxidant and metallic gold as a catalyst. In the form of colloidal nanoparticles, gold produces the conductive polyaniline only in a low yield, whereas when supported on carbon and titania, it improves the polymerisation reaction. For an Au/TiO2 catalyst, a synergistic effect between the metal and the support has been demonstrated that allows the production of polyaniline at high yield (70%). Morphological aspects, derived by TEM and SEM techniques, allow identification of the polymeric material in form of nanospheres 45-600 nm in diameter.
Facile synthesis of polyaniline using gold catalyst / Z. Chen, C. Della Pina, E. Falletta, M. Lo Faro, M. Pasta, M. Rossi, N. Santo. - In: JOURNAL OF CATALYSIS. - ISSN 0021-9517. - 259:1(2008), pp. 1-4.
Titolo: | Facile synthesis of polyaniline using gold catalyst |
Autori: | DELLA PINA, CRISTINA (Secondo) ROSSI, MICHELE (Penultimo) SANTO, NADIA (Ultimo) |
Parole Chiave: | Catalysis; Conductive polymer; Gold; Polyaniline |
Settore Scientifico Disciplinare: | Settore CHIM/03 - Chimica Generale e Inorganica |
Data di pubblicazione: | 2008 |
Rivista: | |
Tipologia: | Article (author) |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jcat.2008.07.006 |
Appare nelle tipologie: | 01 - Articolo su periodico |