Author/Authors :
Frolova، نويسنده , , Yu.V. and Kochubey، نويسنده , , D.I. and Kriventsov، نويسنده , , V.V. and Moroz، نويسنده , , E.M. and Neofitides، نويسنده , , S. and Sadykov، نويسنده , , V.A. and Zyuzin، نويسنده , , D.A.، نويسنده ,
Abstract :
The local structure of mixed oxides with the composition Ce1−xBixOy, where x = 0.1 – 0.5 , y<2 was studied by EXAFS and X-ray radial distribution of electronic density method. It is shown, that samples represent single-phase systems of solid solutions with the structure close to that of CeO2. The unit cell parameter increases and disorder of the structure takes place with bismuth content increasing: modification of interatomic distances, distortion in the cation sublattice, and arising of oxygen vacancies in anion sublattice.
Keywords :
Mixed oxides , EXAFS , Radial distribution of electronic density , structure , ceria , Synchrotron radiation
