Specimens of tin dioxide with modifying Sb and Pt additives are synthesized. Their physicochemical properties (specific surface area, porosity, and conductivity), chemisorption and catalytic activity in the model reaction of CO oxidation are studied. A considerable chemisorption of CO on SnO 2 and SnO 2 -SbO x is observed at 150–180°C. The oxidation of CO in the flow of gases starts in the same temperature range. An addition of platinum leads to a significant increase in the rate of CO oxidation, the reaction starts at 80°C. It is proposed that the process proceeds at the SnO 2 /Pt interface.

α-MnO2 nanorods were obtained by a fast redox transformation of aqueous solution of potassium permanganate. The formation mechanism of 1D nanocrystals proceeds via a first pH- and temperature sensitive stage followed by cation/anion control of the nanorod growth. A high surface area and nanostructuring allowed to achieve superb catalytic activity in a CO oxidation process compared to a conventionally prepared manganese dioxide.

This paper compares the catalytic performance of platinum catalysts supported on different forms of TiO2. A composite material in the form of Pt supported on titanium dioxide nanotubes is shown to possess the highest catalytic performance for CO oxidation. It exhibits stable catalytic activity at temperatures from 65 to 300°C.

We examined the possibility of application of nanotubes based on titanium dioxide and vanadium pentoxide as catalysts for carbon monoxide oxidation. The efficiency of TiO2 nanotubes in this process was confirmed

The reaction of Bi 2 O 3 + Fe 2 O 3 mixtures with chlorine and SO 2 at 250–700°C is studied. At 300–500°C, the degree of bismuth chloride sublimation from the oxide mixture increases in the presence of SO 2 . Chemical sublimation of FeCl 3 occurs after BiCl 3 is virtually completely recovered from the solid phase.

We report the thermodynamic calculations and experimental studies of the kinetics of the reaction of Co 3 O 4 with chlorine at 300–850°C. The show that cobalt chloride sublimation is controlled by the rate of chloride evolution from the surface. The chlorination specifics of the oxides of iron-family metals are compared.

The hydrogen sulfide chemisorption on lead sulfide at 22–100°C is studied by static testing in a vacuum and by pulsed chromatography. It is established that H 2 S is sorbed in reversible and irreversible forms and that the process is accompanied by the sample charging. Irreversibly sorbed hydrogen sulfide is removed by heating the sample in a vacuum or in an inert-gas stream at temperatures exceeding the adsorption temperature by 30–50°C.