INVESTIGADORES
ANGELOME Paula Cecilia
artículos
Título:
Large-pore mesoporous titania-silica thin films (Ti1-xSixO2, 0.1 < x < 0.9) with highly interdispersed mixed oxide frameworks
Autor/es:
PAULA C. ANGELOMÉ; LEANDRO ANDRINI; M. CECILIA FUERTES; FÉLIX G. REQUEJO; GALO J. A. A. SOLER-ILLIA
Revista:
COMPTES RENDUS CHIMIE
Editorial:
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
Referencias:
Año: 2010 vol. 13 p. 256 - 269
ISSN:
1631-0748
Resumen:
Large-size mesoporous thin films with mixed titania-silica framework and Im m cubic-derived or worm-like mesostructure were obtained by combining sol-gel and macromolecular templating techniques. These materials presented accessible mesopores (20-25% pore volume), tunable refractive index and high molecular-scale mixing of both ions, as demonstrated by UV-Visible, FTIR and XANES spectroscopy. In addition, a composition effect in the catalytic reduction of silver was found, which permitted to obtain homogeneous metal nanoparticle-mesoporous film nanocomposites with tuned plasmon position.
