Low-temperature CO oxidation on multicomponent gold based catalysts
Open Access
- 1 January 2013
- journal article
- research article
- Published by Frontiers Media SA in Frontiers in Chemistry
- Vol. 1, 12
- https://doi.org/10.3389/fchem.2013.00012
Abstract
In this work the development of gold catalysts, essentially based on γ-alumina with small superficial fraction of Ce-Fe mixed oxides as support for the low temperature CO oxidation is proposed. Characterization results obtained by means of XPS, UV-Vis spectroscopy and H2-TPR are employed to correlate the activity data with the catalysts composition. The bare γ-alumina supported gold catalyst demonstrates the poorest activity within the series. The addition of CeO2 or FeOX improves the catalytic performance, especially observed for the CeO2-FeOx mixed oxide doped samples. This enhanced CO oxidation activity was related to the Ce-Fe interaction producing materials with promoted redox properties and therefore oxidation activityKeywords
This publication has 18 references indexed in Scilit:
- Sub-ambient CO oxidation over Au/MOx/CeO2-Al2O3 (M=Zn or Fe)Applied Catalysis A: General, 2012
- Fe-doped ceria solids synthesized by the microemulsion method for CO oxidation reactionsApplied Catalysis B: Environment and Energy, 2011
- Gold supported on metal-doped ceria catalysts (M=Zr, Zn and Fe) for the preferential oxidation of CO (PROX)Journal of Catalysis, 2010
- Synthesis and characterization of Fe/CeO2 catalysts: Epoxidation of cyclohexeneJournal of Molecular Catalysis A: Chemical, 2010
- Analysis of XPS spectra of Fe2+ and Fe3+ ions in oxide materialsApplied Surface Science, 2008
- Preparation of alumina supported gold catalysts: Influence of washing procedures, mechanism of particles size growthApplied Catalysis A: General, 2006
- A new preparation method for the formation of gold nanoparticles on an oxide supportApplied Catalysis A: General, 2004
- Water-gas shift: comparative screening of metal promoters for metal/ceria systems and role of the metalApplied Catalysis A: General, 2004
- Comparative studies of the N2O/H2, N2O/CO, H2/O2 and CO/O2 reactions on supported gold catalysts: effect of the addition of various oxidesJournal of Catalysis, 2003
- Synthetic Insertion of Gold Nanoparticles into Mesoporous SilicaChemistry of Materials, 2003