| 中温固体氧化物燃料电池阴极材料Sm2-xCexCuO4的制备与性能研究 | |
| Synthesis and Performance of Sm2-xCexCuO4 Cathode Materials for IT-SOFC | |
| 摘要: 采用甘氨酸-硝酸盐法合成了新型中温固体氧化物燃料电池(ITSOFC)阴极材料Sm2-xCexCuO4(SCC，x=0.0～0.25)。利用XRD和SEM对材料的结构、化学稳定性和微观形貌进行分析表明，该阴极材料与电解质Ce0.9Gd0.1O1.9(CGO)在1 000 ℃烧结时不发生反应;且烧结2 h后，二者之间形成良好的接触界面。利 | |
| 关键词: 中温固体氧化物燃料电池(ITSOFC) 阴极材料 Sm2-xCexCuO4 电极反应 | |
| 基金项目: | |
| Abstract: The samples of Sm2-xCexCuO4(SCC，x=0.0～0.25) as cathode materials for intermediate temperature solid oxide fuel cell (IT-SOFC) were prepared by the glycine-nitrate process and characterized by XRD and SEM. The results showed that SCC had no reaction with electrolyte Ce0.9Gd0.1O1.9 (CGO) at 1 000 ℃ in air. SEM results indicated that the electrode formed good contact with CGO electrolyte after sintering at 1 000 ℃ for 2 h. AC impedance spectroscopy and DC polarization measurements showed that the polarization resistance decreased with the doping of cerium in the lattice. The optimum value of Sm1.8Ce0.2CuO4 resulted in 0.37 Ω·cm2 area specific resistance (ASR) at 750 ℃ in air. The charge transfer process was the rate-limiting step of the electrode reactions as indicated by the oxygen partial pressure measurement. | |
| Keywords: intermediate temperature solid oxide fuel cell (ITSOFC) cathode materials Sm2-xCexCuO4 electrode reaction | |
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| 孙丽萍,霍丽华,赵 辉,Christophe Pijolat.中温固体氧化物燃料电池阴极材料Sm2-xCexCuO4的制备与性能研究[J].无机化学学报,2007,23(9):1545-1549. | |
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