Theoretical Studies of the Surfaces of Modified and Unmodified Fumed Silicas and X/SiO_2 (X=Al_2O_3, TiO_2, GeO_2)

摘要

Dispersed individual and mixed oxides are widely used in industry. The properties of these oxides may be improved in many respects by modification of their surfaces with organic (OC) or organosilicon compounds (OSC). Accomplishing these surface modifications is not trivial, as the reactions depend on many hard-to-control factors, such as the initial state of the surface, the amount of adsorbed water, the phase distribution in mixed oxides, surface topography, etc.