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Oxidation of CO on Ag-based composite oxides

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Abstract

Thermal stability of the oxidized state of silver was increased in the Cr, Mn, Fe and Co oxides. However, Ni and Cu oxides did not stabilize Ag, leading to its aggregation to form metallic Ag at 400°C. The Ag in the former group exhibited high catalytic activity in the oxidation of CO due to the formation of composite oxides with these transition metals.

Abstract

Термическую стабильность к окислению серебра повышали окислами Cr, Mn, Fe и Co. Однако, окислы Ni и Cu не стабилизируют Ag, приводя к его агрегации в металлическую форму при 400°C. В такой смеси Ag обладает высокой каталитической активностью в окислении CO, вследствие образования композитных окислов с этими переходными металлами.

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Authors and Affiliations

  1. Department of Chemistry, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, 606, Kyoto, Japan

    S. Imamura

  2. Department of Industrial Chemistry, Chubu University, Matsumoto-cho, 487, Kasugai, Japan

    S. Ishida

Authors
  1. S. Imamura
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  2. H. Minagawa
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  3. M. Ishihara
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  4. S. Ishida
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Imamura, S., Minagawa, H., Ishihara, M. et al. Oxidation of CO on Ag-based composite oxides. React Kinet Catal Lett 41, 79–83 (1990). https://doi.org/10.1007/BF02075485

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  • DOI: https://doi.org/10.1007/BF02075485

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