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

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作者
SLINKIN, AA
KHARSON, MS
DERGACHEV, AA
UDALTSOVA, EA
ERMOLOV, LV
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O64 [物理化学(理论化学)、化学物理学];
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070304 ; 081704 ;
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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 isobutylene has been studied in a flow system. Both Lewis and Bronsted centers were present on the surface of all of the catalysts, but the greatest quantity of the Bronsted centers was found on the Al2O3-SiO2 samples, which also proved to be the most active in the oligomerization reaction.
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页码:841 / 846
页数:6
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