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Issue 37, 2015
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Effect of chemical redox on Gd-doped ceria mass diffusion

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Abstract

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.

Graphical abstract: Effect of chemical redox on Gd-doped ceria mass diffusion

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Publication details

The article was received on 20 Jul 2015, accepted on 14 Aug 2015 and first published on 17 Aug 2015


Article type: Communication
DOI: 10.1039/C5TA05537G
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. A, 2015,3, 18835-18838
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    Effect of chemical redox on Gd-doped ceria mass diffusion

    D. W. Ni, D. Z. de Florio, D. Marani, A. Kaiser, V. B. Tinti and V. Esposito, J. Mater. Chem. A, 2015, 3, 18835
    DOI: 10.1039/C5TA05537G

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