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Chemisorption of oxygen on cobalt oxysalts of different bond ionicity

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Abstract

The adsorption of oxygen on cobalt oxysalts is shown to increase in the order: Co3(PO4)2, CoMoO4, CoTiO3, CoFe2O4, CoCo2O4, i.e. with increasing ionicity of the X−O bonds in the anionic groups. This is interpreted in terms of increasing electron donor properties of Co(II) ions at the surface of the solid on increasing the ligand field of oxygen ions due to the polarization of X−O bonds.

Abstract

Адсорбция кислорода на оксисолях кобальта увеличивается в ряду: Co3(PO4)2, CoMoO4, CoTiO3, CoFe2O4 и CoCo2O4, т.е. с увеличением ионности связей X−O в анионных группах. Это обьясняется, исходя из увеличения электроно-донорных свойств ионов Co (II) на поверхности кристалла при повышении силы лигандного поля ионов кислорода вследствие поляризации связей X−O.

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Authors and Affiliations

  1. Research Laboratory of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-060, Krakow, Poland

    J. Haber

  2. Department of Physical Chemistry and Technology of Polymers, Silesian Polytechnic, Gliwice, Poland

    Z. Dziewiecki & E. Mielczarska

Authors
  1. Z. Dziewiecki
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  2. J. Haber
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  3. E. Mielczarska
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Dziewiecki, Z., Haber, J. & Mielczarska, E. Chemisorption of oxygen on cobalt oxysalts of different bond ionicity. React Kinet Catal Lett 3, 55–62 (1975). https://doi.org/10.1007/BF02216889

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  • DOI: https://doi.org/10.1007/BF02216889

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