ABSTRACT

Experimental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Vibrational spectroscopy has had a profound effect on our

understanding of the surface chemistry of silica. Indeed, it

has been the model system for the use of IR spectroscopy

for probing the surface chemistry of oxides, the first

studies having been carried out in late 1950. The books

written by Hair [1] and Little [2] in the sixties have

become ‘classics’ with respect to the early use of IR spec-

troscopy for studying the surface properties of silica and

adsorbed species thereon.