TEXTURE, STRUCTURE, AND SURFACE AND CATALYTIC PROPERTIES OF SILICA-GEL THAT HAS BEEN MODIFIED BY CHEMICAL MIXING .3. IR SPECTROSCOPIC AND CATALYTIC STUDY OF MODIFIED SIO2

Citation
Aa. Slinkin et al., TEXTURE, STRUCTURE, AND SURFACE AND CATALYTIC PROPERTIES OF SILICA-GEL THAT HAS BEEN MODIFIED BY CHEMICAL MIXING .3. IR SPECTROSCOPIC AND CATALYTIC STUDY OF MODIFIED SIO2, Kinetics and catalysis, 32(4), 1991, pp. 841-846
Citations number
10
Journal title
ISSN journal
00231584
Volume
32
Issue
4
Year of publication
1991
Part
2
Pages
841 - 846
Database
ISI
SICI code
0023-1584(1991)32:4<841:TSASAC>2.0.ZU;2-M
Abstract
For a comparison of the acidic and catalytic properties of SiO2 doped with Al3+, Ti4+, or Zr4+ cations, the adsorption of pyridine has been investigated by means of IR spectroscopy, and the oligomerization of i sobutylene has been studied in a flow system. Both Lewis and Bronsted centers were present on the surface of all of the catalysts, but the g reatest quantity of the Bronsted centers was found on the Al2O3-SiO2 s amples, which also proved to be the most active in the oligomerization reaction.