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Effects of La Content on the Densification, Microstructure, and Conductivity of Doped La10−x Ge6 O26±δ Electrolytes
Abstract
In this study, the influence of La content on the characteristics of Nb-, Mo-, and W-doped LaxGe6O26±δ electrolytes was investigated through sintering study, X-ray diffraction, scanning electron microscopy, and conductivity measurement. The densification of LaxGe5.5Nb0.5O26±δ and LaxGe5.5W0.5O26±δ was retarded as the x reached 9.75, while that of LaxGe5.5Mo0.5O26±δ improved with increasing La content. The average grain size slightly increased and weight loss due to evaporation of GeO2 significantly reduced with increasing La content, ranging from 1.39% to 0.26%. Among the systems studied, La9.33Ge5.5Nb0.5O26.245, La9.33Ge5.5Mo0.5O26.045, and La9.50Ge5.5W0.5O26.75 electrolytes revealed great potential for use in SOFC applications.
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Authors (5)
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Sea-Fue Wang
- National Taipei University of Technology Department of Materials and Mineral Resources Engineering
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Yi-Xin Liu
- National Taipei University of Technology Department of Materials and Mineral Resources Engineering
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Yung-Fu Hsu
- National Taipei University of Technology Department of Materials and Mineral Resources Engineering
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Chun-Jui Li
- National Taipei University of Technology Department of Materials and Mineral Resources Engineering
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Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
International Journal of Applied Ceramic Technology
no. 14,
edition 1,
pages 84 - 93,
ISSN: 1546-542X - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Wang S., Liu Y., Hsu Y., Li C., Jasiński P.: Effects of La Content on the Densification, Microstructure, and Conductivity of Doped La10−x Ge6 O26±δ Electrolytes// International Journal of Applied Ceramic Technology. -Vol. 14, iss. 1 (2017), s.84-93
- DOI:
- Digital Object Identifier (open in new tab) 10.1111/ijac.12621
- Verified by:
- Gdańsk University of Technology
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