期刊
ELECTROCHIMICA ACTA
卷 151, 期 -, 页码 497-501出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2014.11.071
关键词
pulsed laser deposition; proton-conducting; chemical stability; electrochemical performance
资金
- National Natural Science Foundation of China [51472228, 21406190]
A thin BaZr0.7Pr0.1Y0.2O3-delta (BZPY) layer (similar to 3.3 mu m) is fabricated on anode-supported BaCe0.8Y0.2O3-delta (BCY) electrolyte layer (similar to 28 mu m) with pulsed laser deposition (PLD) technique. The BZPY/BCY bilayer electrolyte shows better chemical stability against CO2 atmosphere compared with the BCY single electrolyte layer. The open circuit voltages (OCVs) of 0.966, 0.997 and 1.021 V with maximum power densities of 250, 177, 122 mW cm(-2) are measured in the bilayer electrolyte cell at 700, 650 and 600 degrees C, respectively. Besides, the BZPY/BCY bilayer electrolyte cell also exhibits a good long-term stability under the operating condition. BZPY thin film deposited with PLD technique can improve chemical stability with little effect on the electrochemical performance of proton-conducting SOFC. (C) 2014 Elsevier Ltd. All rights reserved.
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