中文摘要：

以NiO-（CeO2）1-x2x（Sm2O3）x固体氧化物燃料电池（solid oxide fuel cell，SOFC）的阳极负载，采用甘氨酸-硝酸盐燃烧法制备（CeO2）0.8（Sm2O3）0.1固体电解质前驱体粉末并流延成膜。在中温（650～850℃），分别测定了H2S-Air SOFC的电输出性能随H2S流速r（H2S）、运行温度的变化情况。实验结果表明：SOFC的开路电压随r（H2S）的增大而呈指数关系增大。电流密度-电压（电功率密度）曲线显示：SOFC电输出性能随r（H2S）的增大而改善；但当r（H2S）=80mL／min时，在高电流密度区间输出电压出现明显的下降，这是由于流速增大产生的浓差极化和阳极Ni受H2S腐蚀导致的结果。温度对极化曲线影响表明，SOFC电输出性能随温度的升高而改善，但基于（CeO2）0.8（Sm2O3）0.1离子-电子混合导电等原因，单体电池开路电压受温度影响比较复杂。

英文摘要：

A glycine-nitrate combustion process was adopted to prepare samaria doped ceria [（CeO2）1-2x（Sm2O3）x,SDC] electrolyte on NiO-SDC anode substrate. The electrochemical performance of liES-Air solid oxide fuel cells （SOFCs） was characterized at different intermediate temperatures and HES flow rates, r（H2S）. The results demonstrate that the open circuit voltage （OCV） of SOFCs increases exponentially with the H2S flow rate, and the electrochemical performance is improved at higher flow rates except r（HES）=80 mL/min. The descent of voltage at r（HES）=80 mL/min appears in the higher current density range, which can be attributed to the concentrated polarization and the fact that Ni particles in anodes are corrupted by H2S. The influence of temperature on OCV seems complicated, although the polarization curve ofH2S-Air SOFC based on ceria electrolyte is improved at elevated temperatures.