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Size effects in the sequential oxidation-reduction of Co nanoparticles in the Co/SiO2 catalyst

  • Physical Chemistry of Nanoclusters and Nanomaterials
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Abstract

The size effects during the oxidation-reduction treatment (ORT) of Co nanoparticles in the Co/SiO2 catalyst were studied. The results of ORT on Co nanoparticles depended on the initial size distribution of nanoparticles; for small nanoparticles, ORT did not lead to further decrease in size. (The threshold size was obviously less than 10–15 nm.) The critical size of Co particles depended on the conditions of oxidation and reduction, i.e., the heating rate, the composition of the gas mixture, etc.

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Authors and Affiliations

  1. Department of Chemistry, Moscow State University, Moscow, Russia

    P. A. Chernavskii, G. V. Pankina & M. I. Ivantsov

  2. Universite des Sciences et Technologies de Lille, Lille, France

    A. Yu. Khodakov

Authors
  1. P. A. Chernavskii
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  2. G. V. Pankina
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  3. M. I. Ivantsov
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  4. A. Yu. Khodakov
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Corresponding author

Correspondence to P. A. Chernavskii.

Additional information

Original Russian Text © P.A. Chernavskii, G.V. Pankina, M.I. Ivantsov, A.Yu. Khodakov, 2013, published in Zhurnal Fizicheskoi Khimii, 2013, Vol. 87, No. 8, pp. 1356–1360.

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Chernavskii, P.A., Pankina, G.V., Ivantsov, M.I. et al. Size effects in the sequential oxidation-reduction of Co nanoparticles in the Co/SiO2 catalyst. Russ. J. Phys. Chem. 87, 1349–1352 (2013). https://doi.org/10.1134/S0036024413070108

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  • DOI: https://doi.org/10.1134/S0036024413070108

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