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Electron microscopic investigation of the splitting of Re crystallites during air-aging of Re/SiO2 catalysts at ambient temperature

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Abstract

Redispersion of Re/SiO2 catalysts during air-aging at ambient temperature has been confirmed by TEM analysis. The splitting of large primary crystallites (>10 nm) under the influence of the strain energy of the oxide layer formed on the Re surface has been proposed to explain the observed phenomenon.

Abstract

Электронномикроскопическим методом доказано передиспергирование катализаторов Re/SiO2 после хранения на воздухе при комнатной температуре. Вероятно, растрескивание кристаллов Re(>10 nm), вызвано энергией напряжения окисного слоя, образующегося на поверхности рения.

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References

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Authors and Affiliations

  1. Institute of Technology and Chemical Engineering, Technical Agricultural Academy, 85-326, Bydgoszcz, Poland

    J. A. Szymura

  2. Institute of General Chemistry, Technical University of Łódź, 90-924, Łódź, Poland

    T. Paryjczak

Authors
  1. J. A. Szymura
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  2. T. Paryjczak
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Szymura, J.A., Paryjczak, T. Electron microscopic investigation of the splitting of Re crystallites during air-aging of Re/SiO2 catalysts at ambient temperature. React Kinet Catal Lett 12, 219–223 (1979). https://doi.org/10.1007/BF02064246

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  • DOI: https://doi.org/10.1007/BF02064246

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