Abstract
We report the results of our investigation on protonic conduction in 1 µm-thick polycrystalline films of 8 mol% yttria-stabilized zirconia (YSZ) with an average grain size of 17 nm prepared on sapphire substrate using a spin-coating process. Protonic conductivity of the films is found to be higher by over an order of magnitude (at 30 °C) than earlier reported values for nanocrystalline YSZ bulk ceramics with a similar grain size. This value is comparable to the oxygen-ionic conductivity of this material presented at about 400 °C. These results suggest that, besides grain size, the structural characteristics of the grain boundaries may also play an important role in determining protonic transport in this material, and possibly other nanocrystalline solid electrolytes (SEs), and that the protonic conductivity can further be enhanced by optimizing such characteristics of the grain boundaries. © 2010 the Royal Society of Chemistry.
Recommended Citation
H. J. Avila-Paredes et al., "Room-temperature Protonic Conduction in Nanocrystalline Films of Yttria-stabilized Zirconia," Journal of Materials Chemistry, vol. 20, no. 30, pp. 6235 - 6238, Royal Society of Chemistry, Jul 2010.
The definitive version is available at https://doi.org/10.1039/c0jm00051e
Department(s)
Materials Science and Engineering
International Standard Serial Number (ISSN)
1364-5501; 0959-9428
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Royal Society of Chemistry, All rights reserved.
Publication Date
20 Jul 2010
