ISSN 0005-2531 (Print) ISSN 2522-1841 (Online)
THERMAL ANALYSIS OF THE CATALYTIC SYSTEM OF PHOSFORMOLYBDENIC HETEROPOLY ACID–ALUMINUM OXIDE
E.A.Guseinova, S.E.Yusubova, B.B.Orujzadeh

The methods of thermal analysis – thermogravimetry, differential thermal analysis – were used to study the catalytic system phosphor-molybdenum heteropoly acid–aluminum oxide. It is shown that the modification of aluminum oxide has a direct effect on the state of the phosphor-molybdenum heteropoly acid. On the surface of ƞ-Al2O3, phosphomolybdic acid is destroyed by interaction with strong Lewis’s acid sites of the carrier, while on γ-Al2O3 it retains the individuality, probably due to ²multipoint² adsorption on weak Bronsted and Lewis acid sites of the oxide

doi.org/10.32737/0005-2531-2022-1-22-28

Keywords : η-, α-aluminum oxide; phosphor-molybdenum heteropoly acid; thermal analysis; isopropyl alcohol; catalytic properties
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