| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1295522 | Solid State Ionics | 2006 | 6 Pages |
Abstract
Nanocomposites comprised of fluorite-like (Gd- or Pr-doped ceria) and perovskite-like (LaMnO3+δ) phases were prepared using a polymerized precursor (Pechini) route. Genesis of the structure of composites with annealing temperature has been studied by X-ray diffraction, Transmission Electron Microscopy and EXAFS. Up to 1300 °C, particle sizes of both fluorite and perovskite phases remain in the nano-range. Interaction between components is reflected in the increase of doped ceria lattice parameter and disordering of Mn coordination sphere. Despite this interaction, nanocomposites possess a high conductivity along with a high lattice oxygen mobility and reactivity. The addition of CoO improves sintering of nanocomposites.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Yu. V. Frolova-Borchert, V.A. Sadykov, G.M. Alikina, A.I. Lukashevich, E.M. Moroz, D.I. Kochubey, V.V. Kriventsov, V.I. Zaikovskii, V.V. Zyryanov, N.F. Uvarov,