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Journal of Thermal Analysis and Calorimetry

, Volume 99, Issue 3, pp 965–971 | Cite as

Characterization of gold supported on Al2O3–CuO–Mn2O3 catalysts obtained by thermal decomposition of aerosols

  • Barbara MałeckaEmail author
  • Maria Rajska
Article

Abstract

Gold (~1%) has been supported on the mixed oxides Al2O3–CuO–Mn2O3 with molar compositions 1:1:1, 1:0.7:0.3, 1:0.3:0.7, prepared by spray pyrolysis method. The supports and catalysts have been characterized by TG, DTA, N2 physisorption, XRD, SEM, and TEM methods and tested for CO oxidation (25–300 °C). The catalysts revealed high specific surface area and amorphous form for compositions 1:0.7:0.3 and 1:0.3:0.7. Gold deposited on the supports lowered the T 50 values by 50–80 °C. The highest CO conversion was obtained for 1:1:1 composition.

Keywords

TG DTA Spray pyrolysis Gold catalysts Transition metal oxides Oxidation of CO 

Notes

Acknowledgements

The authors thank Ms. Barbara Trybalska of the Faculty of Materials Science and Ceramics AGH UST, Kraków, Poland for performing the SEM measurements. This study has been performed with the financial support of the Polish Ministry of Science and Higher Education, under the grant No. 11.11.160.110.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2010

Authors and Affiliations

  1. 1.Faculty of Materials Science and CeramicsAGH University of Science and TechnologyKrakowPoland

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