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Oxygen interaction with 0.5% ruthenium on γ-alumina

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Abstract

Oxygen interaction with 0.5% Ru/Al2O3 has been studied by the static adsorption and TPD methods. Irreversible adsorption and the existence of a surface molecular species of oxygen (Edes=22 kcal/mol) at Tads=−110 to +25°C have been found. At Tads ≥ 85 °C, Ru/Al2O3 oxidation begins with the formation of two more (molecular and atomic) oxygen species with Edes=5 and 107 kcal/mol, respectively.

Abstract

Методами статической адсорбции и термодесорбции изучено взаимодействие кислорода c 0,55% Rul/γ-Al2O3. Установлена необратимость адсорбции, суЩествование поверхностной молекулярной формы кислорода (Едес=22 ккол/моль) при Тадс=−110-+25°C С Тадс ≥ 85° начинается окисление Ru/Al2O3, сопровождающееся образованием ещё двух форм кислорода: молекулярной (Едес=5 ккал/моль) и атомарной (Едес=107 ккал/моль).

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Authors and Affiliations

  1. Institute of Organic Catalysis and Electrochemistry, Alma-Ata, USSR

    G. A. Savelieva, G. V. Speranskaya & N. M. Popova

Authors
  1. G. A. Savelieva
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  2. G. V. Speranskaya
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  3. N. M. Popova
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Savelieva, G.A., Speranskaya, G.V. & Popova, N.M. Oxygen interaction with 0.5% ruthenium on γ-alumina. React Kinet Catal Lett 13, 121–124 (1980). https://doi.org/10.1007/BF02074182

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  • DOI: https://doi.org/10.1007/BF02074182

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