| AVS 54th International Symposium | |
| Surface Science | Tuesday Sessions |
| Session SS-TuP |
| Session: | Surface Science Poster Session |
| Presenter: | A.S. Karaoti, University of Central Florida |
| Authors: | A.S. Karaoti, University of Central Florida S.V.N.T. Kuchibhatla, University of Central Florida T. Spalding, University of Central Florida K. Suresh babu, University of Central Florida S. Seal, University of Central Florida |
| Correspondent: | Click to Email |
Oxide based semiconductors such as ceria and titania are used prolifically for a host of catalytic applications. Recently there has been an upsurge in the research, marrying the two materials for enhanced catalytic applications. A marked increase in the catalytic performance of the mixed ceria-titania oxides have been reported by various groups. However, a clear understanding of the underlying mechanisms is still at large. The present work focuses on the characterization of ceria mixed titania using X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Differential Scanning Calorimetry (DSC) and Photoluminescence (PL) experiments. The retention of more catalytic anatase phase at higher temperature upon mixing with ceria and the electronic properties which result in enhancing the catalytic behavior are critically analyzed. Influence of increasing ceria concentration on phase stability, particle size and electronic properties of titania will also be discussed.