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中温SOFC阴极材料La_(0.7)Sr_(0.3)Co_(1-x)Cu_xO_(3-δ)的制备及性能 被引量：3

Preparation and Performance of Cathode Materials of La_(0.7)Sr_(0.3)Co_(1-x)Cu_xO_(3-δ) for IT-SOFC
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摘要 采用固相反应法制备了La0.7Sr0.3Co1-xCuxO3-δ系列中温固体氧化物燃料电池(SOFC)阴极材料粉体.对其进行晶体结构表征,高温电导率和热膨胀曲线测试,并选取其中性能较好的样品进行了单电池实验.结果表明,Cu的掺杂降低了(La,Sr)CoO3体系阴极材料的热膨胀系数,在x=0.05时电导率略高于未掺Cu的样品.以La0.7Sr0.3Co0.95Cu0.05O3-δ为阴极、Ce0.8Sm0.2O1.9为电解质组成的SOFC单电池,在850℃最大短路电流密度达511 mA/cm2,最大输出功率密度约为0.106 W/cm2. The powders of cathode material LA0.7Sr0.3Co1-xCuxO3-δ for intermediate temperature solid oxide fuel cell （IT-SOFC） were prepared with the solid reaction method. The crystal structure, high temperature conductivity and thermal expansion curve of these samples were characteristiced and a selected sample was tested in the single cell. The results show that the thermal expansion coefficients of （La, Sr）CoO3 are decreased by Cu doping, while the conductivity at x = 0.05 is higher than that of the one without Cu. A single fuel cell with LA0.7Sr0.3Co1-xCuxO3-δ as the cathode and Ce0.8 Sm0.2 O1.9 as the electrolyte was tested, the maximum current density was 511 mA/cm^2, and the maximum power density was 0. 106 W/cm^2 at 850 ℃.
作者 荆波 吕喆 许大鹏 苏文辉
机构地区 吉林大学物理学院 哈尔滨工业大学凝聚态科学与技术研究中心
出处 《吉林大学学报（理学版）》 CAS CSCD 北大核心 2005年第5期650-653,共4页 Journal of Jilin University:Science Edition
基金 国家"863"计划项目基金(批准号:2001AA323090)
关键词 中温固体氧化物燃料电池 阴极材料 LA0.7Sr0.3Co1-xCuxO3-δ intermediate temperature solid oxide fuel cell cathode material LA0.7Sr0.3Co1-xCuxO3-δ
分类号 TM911.4 [电气工程—电力电子与电力传动]
  • 相关文献

参考文献7

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二级参考文献8

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共引文献4

同被引文献19

  • 1程乐华,王敏,陈永红.La_(0.7-x)Sr_xNd_(0.3)FeO_(3-δ)体系复合氧化物的合成与表征[J].应用化学,2006,23(5):561-565. 被引量：4
  • 2吕洪,赵斌元,孙刚,吴宇骥,胡克鳌.新型中温固体氧化物燃料电池阴极材料Fe掺杂Sm_(0.5)Sr_(0.5)CoO_3性能研究[J].无机化学学报,2006,22(11):1967-1972. 被引量：8
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  • 9Ding X F,Cui C,Du X J,Guo L C.Electrical conductivity,,thermal expansion and electrochemical properties of Fe-doped La0.7Sr0.3CuO3-δ cathodes for solid oxide fuel cells[J].J.Alloy Comp.,2009,475:418.
  • 10Lee K T,Manthiram A.Effect of cation doping on the physical properties and electrochemical performance of Nd0.6Sr0.4Co0.8M0.2O3-δ(M =Ti,Cr,Mn,Fe,Co,and Cu)cathodes[J].Solid State Ionics,2007,178:995.

引证文献3

二级引证文献8

吉林大学学报（理学版）
2005年 第5期

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