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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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Article information


Submitted
20 Jul 2015
Accepted
14 Aug 2015
First published
17 Aug 2015

J. Mater. Chem. A, 2015,3, 18835-18838
Article type
Communication
Author version available

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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