Health & Environmental Research Online (HERO)


Print Feedback Export to File
1620458 
Journal Article 
Au/Fe3O4 and Au/Fe2O3 Catalysts: Physicochemical Properties and Oxidation of CO and Propane 
Grzybowska, B; Ruszel, M; Samson, K; Grabowski, R; Spiridis, N; Freindl, K; Korecki, J 
2009 
1 
Polish Journal of Chemistry
ISSN: 0137-5083 
83 
12 
2129-2136 
WOS:000274494500010 
Catalysts containing Au deposited on Fe3O4 (commercial
Cerac) and on Fe2O3 were synthesized, characterized by XPS, XRD, Mossbauer spectroscopy, H2TPR,
isopropanol decomposition - a probe reaction of acid-base properties, and tested in oxidation of
CO and C3H8. Au//Fe3O4 catalyst, 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/alpha-Fe2O3 (hematite). The activity in oxidation of CO and propane was higher for Au/alpha-
Fe2O3 catalyst as compared with Au/Fe3O4. 
Au/FeOx catalysts: physicochemical properties; oxidation of CO; oxidation of propane