Mechanism of oxidation of hydrogen on vanadium pentoxide

Journal Article · Fri Apr 01 04:00:00 EST 1977 · Kinet. Catal. (USSR) (Engl. Transl.); (United States)

OSTI ID:7290768

Svintsova, L G; Korneichuk, G L

In this paper it is shown that the rate of hydrogen oxidation in the presence of vanadium pentoxide depends on the composition of the reaction mixture. This dependence can be described satisfactorily by the Langmuir--Schwab equation for the kinetics of heterogeneous reactions in a wide range of hydrogen/oxygen ratios at 400-500/sup 0/C. The data obtained suggest the heterogeneous nature of the process. The observed deviation from the theory at high relative hydrogen concentrations can be explained by the existence of chemical nonhomogeneity of the vanadium pentoxide surface resulting from its partial reduction during the catalytic oxidation of hydrogen.

• Research Organization: Physical Chemistry Inst., Kiev
• OSTI ID: 7290768
• Journal Information: Kinet. Catal. (USSR) (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (USSR) (Engl. Transl.); (United States) Vol. 17:5; ISSN KICAA
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080800* -- Hydrogen-- Properties & Composition
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CRYOGENIC FLUIDS
ELEMENTS
FLUIDS
HIGH TEMPERATURE
HYDROGEN
KINETICS
NONMETALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES