Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Characterization, electrical conduction and stability of Yb-doped barium cerate prepared by sol–gel method

Characterization, electrical conduction and stability of Yb-doped barium cerate prepared by... Ceramics powder of BaCe0.95Yb0.05O2.975 was successfully prepared by sol–gel method. Thermogravimetric analysis showed that the decomposition of the dried powder was completed at 1,000 °C. Three strongly exothermic peaks observed in differential thermogravimetric signal indicated three major stages of weight loss in the sample. The high crystallinity of sample with orthorhombic structure was confirmed by X-ray diffraction. The loose particles size obtained from scanning electron microscope was in the range of 65–100 nm, which is almost in the same range as that observed in particle size distribution. The sample showed a dc conductivity of ~1.3 × 10−4 S cm−1 at 650 °C and the activation energy, E a, was found to be 1.4 eV. Result of chemical stability test showed that the compound was unstable in atmosphere containing pure carbon dioxide. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Characterization, electrical conduction and stability of Yb-doped barium cerate prepared by sol–gel method

Ionics , Volume 14 (5) – Dec 17, 2007

Loading next page...
 
/lp/springer-journals/characterization-electrical-conduction-and-stability-of-yb-doped-r7x69Xiajq

References (19)

Publisher
Springer Journals
Copyright
Copyright © 2007 by Springer-Verlag
Subject
Chemistry; Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-007-0184-x
Publisher site
See Article on Publisher Site

Abstract

Ceramics powder of BaCe0.95Yb0.05O2.975 was successfully prepared by sol–gel method. Thermogravimetric analysis showed that the decomposition of the dried powder was completed at 1,000 °C. Three strongly exothermic peaks observed in differential thermogravimetric signal indicated three major stages of weight loss in the sample. The high crystallinity of sample with orthorhombic structure was confirmed by X-ray diffraction. The loose particles size obtained from scanning electron microscope was in the range of 65–100 nm, which is almost in the same range as that observed in particle size distribution. The sample showed a dc conductivity of ~1.3 × 10−4 S cm−1 at 650 °C and the activation energy, E a, was found to be 1.4 eV. Result of chemical stability test showed that the compound was unstable in atmosphere containing pure carbon dioxide.

Journal

IonicsSpringer Journals

Published: Dec 17, 2007

There are no references for this article.