Au/Fe3O4 and Au/Fe2O3 Catalysts: Physicochemical Properties and Oxidation of CO and Propane

• Autorzy: Grzybowska B. , Ruszel M. , Samson K. , Grabowski R. , Spiridis N. , Freindl K. , Korecki J.
• Języki publikacji: EN

Abstrakty

EN

Catalysts containing Au deposited on Fe3O4 (commercial Cerac) and on Fe2O3 were synthesized, characterized by XPS, XRD, Mössbauer spectroscopy, H2TPR, isopropanol decomposition – a probe reaction of acid-base properties, and tested in oxidation of CO and C3H8. Au//Fe3O4 cat a lyst, containing a mixture of magnetite and maghemite (gamma-Fe2O3) phases, was found to be more acidic containing more surface OH groups and less reducible than Au/alfa-Fe2O3 (hematite). The activity in oxidation of CO and propane was higher for Au/alfa-Fe2O3 catalyst as compared with Au/Fe3O4.

Słowa kluczowe

EN

Au/FeOx catalysts: physicochemical properties; oxidation of CO; oxidation of propane

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2009
• Tom: Vol. 83, nr 12
• Strony: 2129--2136
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Grzybowska B.

autor

Ruszel M.

autor

Samson K.

autor

Grabowski R.

autor

Spiridis N.

autor

Freindl K.

autor

Korecki J.

• Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, 30-239 Kraków, ul. Niezapominajek 8, Poland corresponding author: ul. Senatorska 25/34, 30-106 Kraków,

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