Performances of cathode-supported SOFC with Ni0.5Cu0.5-CGO anode operated in humidified hydrogen and in low concentration dry methane
Performances of cathode-supported SOFC with Ni0.5Cu0.5-CGO anode operated in humidified hydrogen and in low concentration dry methane
复制标题
湿润氢气和低浓度干燥甲烷中运行的带有 Ni0.5Cu0.5-CGO 阳极的阴极支撑 SOFC 的性能
DOI：
10.1007/s10008-011-1615-1
复制
发表时间：
2012
影响因子：
2.5
通讯作者：
Abuliti Abudula
中科院分区：
文献类型：
--
作者：
Gang Chen;Guoqing Guan;Yutaka Kasai;Hong-Xin You;Abuliti Abudula
在LSM（（La0.75Sr0.25）0.95MnO3−δ）-CGO阴极支撑的SOFC中，分别在加湿H2（3%H2O）和低浓度干甲烷中测试Ni0.5Cu0.5-CGO（Ce0.8Gd0.2O1.9）阳极。在1，300 °C下共烧结后，发现A位缺陷的LSM有效地阻碍了La 2 Zr 2 O 7或SrZrO 3的形成。在850、800和750 °C下，电池的开路电压在潮湿的H2中分别高达1.132、1.14和1.147 V，在14.8%的干燥甲烷中分别高达1.314、1.269和1.2 V，表明通过本方法制备的ScSZ电解质膜足够致密。在850、800和750 °C下，相应的峰值功率密度在潮湿的H2中分别为0.396、0.287和0.19 W cm − 2，在14.8%的干燥甲烷中分别为0.249、0.164和0.096 W cm− 2。以干甲烷为燃料时，所制备的NiCu-CGO阴极支撑SOFC具有较好的长期稳定性。
A Ni0.5Cu0.5–CGO (Ce0.8Gd0.2O1.9) anode in a LSM ((La0.75Sr0.25)0.95MnO3−δ)–CGO cathode-supported SOFC is tested in humidified H2(3% H2O) and in low concentration of dry methane, respectively. After co-sintering at 1,300 °C, it was found that the A-site-deficient LSM effectively hindered the formation of La2Zr2O7or SrZrO3. The OCVs of the cell are as high as 1.132, 1.14, and 1.147 V in humidified H2and 1.314, 1.269, and 1.2 V in 14.8% of dry methane at 850, 800 and 750 °C, respectively, indicating that the ScSZ electrolyte film prepared by the present method is dense enough. The corresponding peak power densities are 0.396, 0.287, and 0.19 W cm−2in humidified H2and 0.249, 0.164, and 0.096 W cm−2in 14.8% of dry methane at 850, 800, and 750 °C, respectively. The prepared cathode-supported SOFC with NiCu–CGO bimetallic anode shows long-term stability when dry methane is used as fuel.