ADSORPTION AND OXIDATION OF ETHYLENE ON PURE AND Cr//2O//3-DOPED SnO//2.

F. Solymosi, F. Bozso

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Adsorption meausrements revealed that both oxygen and ethylene promote adsorption of the other gas; this was interpreted by formation of a surface complex. Oxidation of ethylene on pure SnO//2 takes place above 350 C. Electric conductivity measurements during the reaction, and studies of the reduction and reoxidation of the SnO//2 showed that the catalytic reaction occurs on the oxidized surface. The oxidation is zero order with respect to oxygen, and first order with respect to ethylene. The activation energy is 105 kJ/mol. The rate of oxidation markedly increased and the value of activation energy decreased when a small amount (0. 1-1%) of chromium had been incorporated into SnO//2. A direct correlation was found between the increased reaction rate and the active oxygen content of the catalyst. The possible mechanism of the oxidation is discussed in detail.

Original languageEnglish
Pages (from-to)529-535
Number of pages7
JournalBerichte der Bunsengesellschaft/Physical Chemistry Chemical Physics
Volume81
Issue number5
Publication statusPublished - 1977

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Ethylene
Adsorption
Oxidation
Oxygen
Electric conductivity measurement
Activation energy
Chromium
Reaction rates
Reactive Oxygen Species
Gases
Catalysts
ethylene

ASJC Scopus subject areas

  • Chemical Engineering(all)

Cite this

ADSORPTION AND OXIDATION OF ETHYLENE ON PURE AND Cr//2O//3-DOPED SnO//2. / Solymosi, F.; Bozso, F.

In: Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics, Vol. 81, No. 5, 1977, p. 529-535.

Research output: Contribution to journalArticle

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