Lecture: Surface Molecular Engineering in the Confined Space of Templated Porous Silica
Prof. Laurent Bonneviot
Ecole normals Superieure de Lyon, Unversity of Lyon, France
Abstract:Advanced materials for molecular sensing, selective adsorption and heterogeneous catalysis require a fine control at the surface-fluid interface. To reach this objective several aspects of the material have to be considered: i) the molecular structure of the active sites, ii) their vicinity at the manometer scale of length, iii) their distribution in the solid and iv) the confinement controlled by the size and shape of the porosity. The approaches developed to synthesis such materials are reviewed here considering mainly mesoporous templated silicas such as MCM-41or SBA-15 and related materials. In addition, a new nomenclature (ITSE) is proposed to classify hybrid materials depending on the location of the function in the porous solid support. Special attention is devoted to the different strategies described in the literature to control the grafting of organic functions and metal complexes. The challenge is to obtain isolated and well-defined unique sites in a confined nanometric space with an appropriate environment. Some application applications will be presented.
Venue: Conference Room of Basic Energy Science Building
Date: July 24, 2015