Electrical conductivity and defect structure of yttria-doped ceria-stabilized zirconia

Title
Electrical conductivity and defect structure of yttria-doped ceria-stabilized zirconia
Authors
이종호윤성민김병국김주선이해원송휴섭
Keywords
zirconia; yttria; Electrical conductivity; defect structure; electrical properties; transport properties
Issue Date
2001-09
Publisher
Solid state ionics
Citation
VOL 144, NO 1-2, 175-184
Abstract
The electrical property and defect structure of 12 mro CeO2–ZrO2, which has been known for good mechanical and thermal properties, were studied in order to investigate the possibility of its use as a solid electrolyte for electrochemical device, like electrolyser, sensor and fuel cell. The electrical conductivity of 12 mro CeO2–ZrO2 was greatly enhanced and electrolytic domain boundary ŽEDB. was also extended to low PO with yttria doping, which were readily comparable with 2 those of commercial electrolyte, YSZ, CSZ. Unlike normal stabilized zirconia, saturation point of electrical conductivity appeared at higher doping concentration Ž12–15 mro yttria. and the activation energy was not also changed seriously with doping till 15 mro yttria doping. q2001 Elsevier Science B.V. All rights reserved.
URI
http://pubs.kist.re.kr/handle/201004/14074
ISSN
0167-2738
Appears in Collections:
KIST Publication > Article
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