کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1285325 | 973134 | 2009 | 5 صفحه PDF | دانلود رایگان |
Sr0.88Y0.08TiO3 (YST) was synthesized and the performance of a YST–CeO2 composite as an alternative anode for the direct utilization of CH4 in solid oxide fuel cells (SOFCs) was investigated. X-ray diffraction showed that YST had good chemical compatibility with CeO2 and YSZ (8 mol% Y-doped ZrO2). The shrinkage of the YST–CeO2 composite on sintering was less than that of pure YSZ and CeO2, and its thermal-expansion behavior was similar to that of YSZ. With YSZ as electrolyte, ScSZ (10 mol% Sc-doped ZrO2)–LSM (La0.8Sr0.2MnO3) as cathode, and YST–CeO2 composite as anode, single cells were prepared and tested in both H2 and CH4. The maximum power density obtained at 900 °C was 161.7 mW cm−2 in H2 atmosphere and 141.3 mW cm−2 in CH4. The results demonstrated the potential of using YST–CeO2 composite as the anode for SOFCs.
Journal: Journal of Power Sources - Volume 187, Issue 1, 1 February 2009, Pages 85–89