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.
Facile synthesis of polyaniline using gold catalyst
C. Della PinaSecondo
;E. Falletta;M. Pasta;M. RossiPenultimo
;N. SantoUltimo
2008
Abstract
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.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.