Improvement of Chemical Stability of BaCe0.9Y0.1O3/BaCe0.6Zr0.3Y0.1O3 Bi-Layer Electrolyte

Title
Improvement of Chemical Stability of BaCe0.9Y0.1O3/BaCe0.6Zr0.3Y0.1O3 Bi-Layer Electrolyte
Authors
신동욱
Keywords
Chemical Stability; BCY; BCZY; Proton Ceramic Fuel Cell; Bi-Layer
Issue Date
2015-01
Publisher
AMER SCIENTIFIC PUBLISHERS
Citation
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v. 15, NO 1, Page. 269-272
Abstract
Doped-BaCeO3 has high protonic conductivity at intermediate temperature, but poor chemical stability. In contrast, doped-BaZrO3 is rather stable, but has poor protonic conductivity. In this study, the BCY-BCZY bi-layer system was investigated in the hope of the synergetic improvement of high conductivity and good chemical stability. Nano-sized the BCY and modified-BCZY powders were prepared by the citric-nitrate route and bi-layer electrolyte made of BCY covered with a thin film BCY-BCZY deposited by the electrostatic slurry spray deposition. The improvement of chemical stability, measured in CO2 atmosphere, is turned out to be resulted from the substitution of Zr4+ cation. Overall, the BCY-BCZY bi-layer electrolyte shows promising improvement in chemical stability against produced water on the cathode side during the cell operation.
URI
http://hdl.handle.net/20.500.11754/21546http://www.ingentaconnect.com/content/asp/jnn/2015/00000015/00000001/art00044
ISSN
1533-4880
DOI
http://dx.doi.org/10.1166/jnn.2015.8402
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE & ENGINEERING(신소재공학부) > Articles
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