Effect of chemical redox on Gd-doped ceria mass diffusion

De Wei Ni, D.Z. de Florio, Debora Marani, Andreas Kaiser, V.B. Tinti, Vincenzo Esposito

Research output: Contribution to journalJournal articleResearchpeer-review


The valence and size of cations influence mass diffusion and oxygen defects in ceria. Here we show that reduction of Ce4+ to Ce3+, at high temperatures and low oxygen activity, activates fast diffusion mechanisms which depend on the aliovalent cation concentration. As a result, polycrystalline solid solutions with enhanced electrochemical properties are formed.
Original languageEnglish
JournalJournal of Materials Chemistry A
Issue number37
Pages (from-to)18835-18838
Number of pages4
Publication statusPublished - 2015

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