Au-CeO2 nanoporous films/carbon nanotubes composites prepared by magnetron sputtering

• DOI: 10.1016/j.apsusc.2012.08.106
• Publication Date: 2012-08-31T16:50:18Z
• Authors: Ivan Khalakhan; Mykhailo Vorokhta; Mykhailo Chundak; Vladimír Matolín
• Keywords: Nanoporous; Stoichiometry; Cerium oxide

Abstract CeO 2 and Au-CeO 2 thin films with different thickness were deposited on the carbon nanotubes by using magnetron sputtering of cerium dioxide and gold. The catalyst films were tested using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). XPS showed that thickness has significant influence on CeO 2 films stoichiometry and in turn ceria stoichiometry influences gold oxidation states in Au doped CeO 2 catalyst.