Selection of cathode contact materials for solid oxide fuel cells
Selection of cathode contact materials for solid oxide fuel cells
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DOI：
10.1016/j.jpowsour.2011.06.044
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发表时间：
2011-10
影响因子：
9.2
通讯作者：
M. Tucker;Lei Cheng;L. Dejonghe
中科院分区：
文献类型：
--
作者：
M. Tucker;Lei Cheng;L. Dejonghe
本工作的目标是在900-1000°C的相对较低温度烧结后，确定合适的阴极接触材料（CCM），将LSCF阴极与mn1.5 co1.5 o4涂层的441不锈钢结合并电连接。各种各样的候选CCM被合成和表征。对每种材料的电导率、热膨胀系数、烧结行为以及与LSCF或mn1.5 co1.5 o4反应的倾向进行了测定。经过筛选，LSCF、LSCF、LSC和SSC被选为最有希望的候选。这些组合物应用于LSCF和mn1.5 co1.5 o4涂层的441不锈钢板，并在800°C下进行200小时ASR测试。在进行区域电阻测试后，对样品进行横截面分析，并分析其在CCM/LSCF或CCM/ mn1.5 co1.5 o4界面上的相互扩散。观察到相对较窄的相互扩散带。
The goal of this work is to identify suitable cathode contact materials (CCM) to bond and electrically connect LSCF cathode to Mn1.5Co1.5O4-coated 441 stainless steel after sintering at the relatively low temperature of 900–1000°C. A wide variety of CCM candidates are synthesized and characterized. For each, the conductivity, coefficient of thermal expansion, sintering behavior, and tendency to react with LSCF or Mn1.5Co1.5O4are determined. From this screening, LSCF, LSCuF, LSC, and SSC are selected as the most promising candidates. These compositions are applied to LSCF and Mn1.5Co1.5O4-coated 441 stainless steel coupons and subjected to 200h ASR testing at 800°C. After area-specific resistance testing, the specimens are cross-sectioned and analyzed for interdiffusion across the CCM/LSCF or CCM/Mn1.5Co1.5O4interfaces. A relatively narrow band of interdiffusion is observed.