INVESTIGADORES
SOLER ILLIA Galo Juan De Avila Arturo
artículos
Título:
Sorption Properties of Mesoporous Multilayer Thin Films
Autor/es:
M. C. FUERTES; S. COLODRERO; G. LOZANO; A. RODRÍGUEZ GONZÁLEZ-ELIPE; D. GROSSO; C BOISSIÈRE; C. SÁNCHEZ; G. J. DE A. A. SOLER-ILLIA; H. MÍGUEZ
Revista:
JOURNAL OF PHYSICAL CHEMISTRY C
Editorial:
AMERICAN CHEMICAL SOCIETY
Referencias:
Año: 2008 vol. 112 p. 3157 - 3163
ISSN:
1932-7447
Resumen:
The vapor sorption properties of multilayers made of ordered mesoporous thin films with tailored composition and mesostructure are herein investigated. Optical reflectance measurements versus partial pressure of several vapors are performed to analyze the interplay between the affinity to and the accessibility of the different types of layers in the structure. We find that the behavior of a mesoporous oxide layer within the multilayer largely differs from that of the isolated thin film, its sorption properties being determined by the interaction with neighboring films. An explanation of the phenomena observed in these complex systems is provided in terms of the pore size, the affinity of each type of layer to specific compounds, and the effect of neighboring layers in the sorption properties of bilayers by an independent environmental ellipsometric study.
