Six different silicas, (two aerosils, a hydrophobic aerosil, a silica gel and Stober spheres) pretreated at 423 K in vacuum were impregnated with Ti-(O-i-Pr)4 in a N2 atmosphere and the excess alkoxide washed away in an inert environment. Infrared spectroscopy showed significant differences in the relative proportioins of isolateed and H-bonded surface hydroxyls on these silicas. The silicas that had a higher proportion of H-bonded hydroxyls on these silicas.
Revised: September 6, 2019 |
Published: February 1, 1994
Citation
Srinivasan S., A.K. Datye, M.J. Hampden-Smith, and C.H. Peden. 1994.Interaction of Titanium Isopropoxide with Surface Hydroxyls on Silica.Journal of Catalysis 145, no. 2:565-573.PNNL-SA-23182.doi:10.1006/jcat.1994.1068