AUTHOR=Ramirez Reina Tomas , Ivanova Svetlana , Centeno Miguel Angel , Odriozola Jose Antonio 

TITLE=Low-temperature CO oxidation on multicomponent gold based catalysts

JOURNAL=Frontiers in Chemistry

VOLUME=1

YEAR=2013

URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2013.00012

DOI=10.3389/fchem.2013.00012

ISSN=2296-2646

ABSTRACT=<p>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 TEM, OSC, XPS, UV-Vis spectroscopy and H<sub>2</sub>-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 CeO<sub>2</sub> or FeO<sub>X</sub> improves the catalytic performance, especially observed for the CeO<sub>2</sub>-FeO<sub>x</sub> 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 activity.</p>