| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5360659 | Applied Surface Science | 2013 | 10 Pages |
Abstract
⺠Cation rearrangement between the surface and bulk of grains was studied in composites. ⺠Surface of La0.6Sr0.4CoO3-CeO2 and La0.8Sr0.2MnO3-CeO2 composites is depleted in Ce. ⺠Ce4+ (major fraction) and Ce3+ cations are present at the surface or interfaces. ⺠Small fraction of CeO2 facilitates surface segregation of Co cations in composites. ⺠O 1s spectra vary with CeO2 content and chemical origin of transition metal cations.
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Authors
Elena Yu Konysheva, Stephen M. Francis,