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It is shown that palladium-cobalt oxide-cerium catalyst deposited on cordierite catalyzes the reduction of nitrogen(II) oxide with carbon monoxide, and cobalt-iron catalysts in simultaneous reduction of NO + NO with C-C alkanes retained high activity in the presence of water vapor and sulfur dioxide. The Pd-CoO/cordierite catalyst exceeds the Pt-CoO/codierite catalyst in the conversion of NO and CO in the reaction mixture CO + NO + O + HO + SO. Modification of the Pd-CoO/cordierite with cerium oxide considerably increases its sulfur resistance. [ABSTRACT FROM AUTHOR]

We have established that as a result of both photochemical and reduction heat treatment of titanium dioxide preparations impregnated with transition metal salts, there is an increase in their catalytic efficiency in the process of copper deposition. We consider reactions leading to activation and deactivation of the catalysts. [ABSTRACT FROM AUTHOR]

We used pulsed reduction and temperature programmed oxidation to study the interaction of methane and oxygen with the surface of manganese oxide-containing catalysts. We hypothesized that during oxidative dimerization of methane, the phase supplying strongly bound oxygen for selective methane coupling is an acceptor for weakly bound oxygen of the phase catalyzing exhaustive oxidation. [ABSTRACT FROM AUTHOR]