New catalysts for the oxidation of carbon monoxide

Kirovskaya, I. A.; Podgornyi, S. O.

doi:10.1134/s0036024412010153

Cited by 5 publications

(1 citation statement)

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“…7), which was evidence of its more acid surface. According to [4,7,8], medium acidification (a decrease in pH) was caused by the molecular adsorption of water in the "dispersed semi conductor-water" system with the formation of Н 3 SbO 4 and H 2 SO 4 acids, which are transferred into volume under mechanochemical actions [9]. An insig nificant increase in pH at the end of mechanochemi cal actions can be explained by the hydrolysis of SbO ions (acid residues of a weak acid) observed by the authors of [2,9].…”

Section: A Kirovskaya and T N Filatovamentioning

confidence: 99%

The structure and chemical and acid-base state of the surface of solid solutions and binary components in the InSb-CdS system

Kirovskaya

Filatova

2012

Russ. J. Phys. Chem.

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The surface physicochemical properties, including microstructure, chemical composition, and acid base surface properties, of solid solutions and binary components in the InSb-CdS system obtained for the first time were studied. Films of all the components had a polycrystalline structure with a nonuniform character of the distribution of crystallites, which associated into agglomerates. The chemistry of the surface was mainly determined by adsorbed H 2 O and CO 2 molecules, OH -groups, and, to a lesser extent, oxygen and hydrogen carbon compounds. The strength, concentration, and nature of acid centers were determined. Coordination unsaturated In and Cd atoms, adsorbed water molecules, and OH -groups were responsible for acid basic centers. Changes in the acid base properties of the surface of InSb-CdS system components caused by composition variations were studied. They correlated with the "specific conductivity-composi tion" dependence, reflected the special features of donor acceptor interactions in solid solutions, and could be used to predict adsorption catalytic properties.

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Section: A Kirovskaya and T N Filatovamentioning

confidence: 99%