电源技术2009，Vol.33Issue(7)：576-578,617,4.
Ce_(0.8)M_(0.2)O_(2-δ)(M=Co,Fe,Mn)用于天然气中温SOFCs阳极的研究
Research on Ce_(0.8)M_(0.2)O_(2-δ)(M=Co,Fe,Mn)used in intermediate temperature SOFCs anodes for natural gas
摘要
Abstract
In this paper, the samples of Ce_(0.8)M_(0.2)O_(2-δ) (M=Co、Fe、Mn) (20 CDC、20 FDC、20 MDC) as anode materials for intermediate temperature solid oxide fuel cells (IT-SOFCs) were prepared by the sol-gel method. The NiO-20 CDC, NiO-20 FDC and NiO-20 MDC anode supported cells were fabricated by dry-pressing process using Ce_(0.8)Gd_(0.2)0_(2-δ)(GDC) as electrolyte and La_(0.8)Sr_(0.2)Co_(0.8)Fe_(0.2)0_(3-δ)(LSCF)-Ce_(0.8)Gd_(0.2)0_(2-δ)(GDC) as cathode. The crystal forms and microstructures have been investigated using XRD and SEM methods. The performances of single cells using humidified natural gas(3% H_2O) as fuel and oxygen as oxidant were tested from 400 ℃ to 700 ℃ . The results of experiment show that the obtained powers have a cubic fluorite structure. The (50%)NiO-20 CDC anode of the cells represents good structure of hole. The (50% )NiO-20 CDC anode supported-cell manifests the best electrochemical performances among the three cells. The maximum current density and power density are 148.84 mA/cm~2 and 30.91 mW/cm~2 at 650 ℃.关键词
中温固体氧化物燃料电池/复合阳极材料/过渡金属掺杂/天然气Key words
IT-SOFCs/ composite anode materials/ transition metal doping/ natural gas分类
信息技术与安全科学引用本文复制引用
郝红霞,刘瑞泉,韩慧..Ce_(0.8)M_(0.2)O_(2-δ)(M=Co,Fe,Mn)用于天然气中温SOFCs阳极的研究[J].电源技术,2009,33(7):576-578,617,4.基金项目
国家自然科学基金资助项目(NO.50662005) （NO.50662005）
