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IR, TPR and chemisorption study of alumina-supported cobalt catalysts

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Abstract

Decomposition of cobalt nitrate on alumina in air or hydrogen leads to the formation of different cobalt oxide phases. Chemisorption of H2 and IR spectra of adsorbed CO show that for the catalyst pretreated in H2 the reduction to metallic cobalt occurs at T>573 K and results in lower metal dispersity. Formation of cobalt particles of different surface structures is proposed depending on the pretreatment mode.

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Authors and Affiliations

  1. Institute of Catalysis, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

    S. Todorova, V. Zhelyazkov & G. Kadinov

Authors
  1. S. Todorova
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  2. V. Zhelyazkov
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  3. G. Kadinov
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Todorova, S., Zhelyazkov, V. & Kadinov, G. IR, TPR and chemisorption study of alumina-supported cobalt catalysts. React Kinet Catal Lett 57, 105–110 (1996). https://doi.org/10.1007/BF02076127

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  • DOI: https://doi.org/10.1007/BF02076127

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