| AVS 62nd International Symposium & Exhibition | |
| Applied Surface Science | Thursday Sessions |
| Session AS-ThP |
| Session: | Applied Surface Science Poster Session |
| Presenter: | Lazaro Huerta, Universidad Nacional Autonoma de Mexico |
| Authors: | L. Huerta, Universidad Nacional Autonoma de Mexico R. Escamilla, Universidad Nacional Autonoma de Mexico M. Romero, Universidad Nacional Autonoma de Mexico M. Flores, Universidad de Guadalajara, Mexico A. Duran, Universidad Nacional Autonoma de Mexico |
| Correspondent: | Click to Email |
The general formula of the oxide pyrochlores can be written as A2B2O6O′ with four crystallographically nonequivalent atom sites. These compounds have potential applications in a variety of applications as catalysis, magnetic and ionic conducting materials. A particular pyrochlore-type phase with Bi1.5ZnSb1.5O7 stoichiometry is used in ZnO-based varistors, a polyphasic ceramic with property based on the grain boundary phenomenon. Here, we synthetized the polycrystalline samples of (Bi3M)(Sb3M)O14 with M = Cu, Co and Zn by solid state reaction. The samples were characterized by X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy. X-ray diffraction studies revealed that the a lattice parameter increases with Cu, Co and Zn respectively. On the other hand, the Cu 2p, Co 2p, Zn 2p, Bi 4f and O1s core levels were analysed and the valence bands respective were studied.