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Kinetics of exchange and species of oxygen on the surface of oxide catalysts

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Abstract

On the basis of the kinetic law of isotope exchange, it has been established that the heteroexchange of O2 occurs via two different mechanisms: 1/reversible adsorption resulting in the formation of two atomic species with different bonding strengths, and 2/formation of a triatomic complex from the oxygen molecule and an oxygen atom on the surface. Simultaneously, the homoexchange of molecular oxygen may take place by an associative mechanism.

Abstract

На основании кинетических закономерностей изотопного обмена установлено, что гетерообмен O2 на поверхности окислов осуществляется по двум различным механизмам: 1) за счет обратимой адсорбции с образованием двух атомных форм с различной прочностью связи и 2) через трехатомный комплекс из молекулы и поверхностного атома кислорода. Наяду с этим, может протекать гомообмен молекулярного кислорода по ассоциативному механизму.

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Authors and Affiliations

  1. Institute of Catalysis, Novosibirsk, USSR

    V. S. Muzykantov, G. K. Boreskov & G. I. Panov

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  1. V. S. Muzykantov
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  2. G. K. Boreskov
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  3. G. I. Panov
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Muzykantov, V.S., Boreskov, G.K. & Panov, G.I. Kinetics of exchange and species of oxygen on the surface of oxide catalysts. React Kinet Catal Lett 1, 315–319 (1974). https://doi.org/10.1007/BF02070900

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  • DOI: https://doi.org/10.1007/BF02070900

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