摘要
固体氧化物燃料电池有高的能量转换效率．近年来成为电化学、材料和化学工程方面研究的一个重要热点。目前商业化和正在商业化过程中的固体氧化物燃料电池中普遍使用的LSM-YSZ／YSZ／Ni-YSZ体系，西门子-西屋公司已经有多套200kW级的固体氧化物燃料电池发电装置在试验运行中。
Transition metal （Mn, Fe, Co, Ni, Cu） oxide was formed in LSM-YSZ cathode by nitrate solution infiltration method. LSM-YSZ/YSZ/LSM-YSZ symmetric cell performance at intermediate temperature range 600-800℃ was studied by electrochemical impedance spectroscopy （EIS）. EIS test results showed that the polarization resistances of LSM-YSZ with metal oxide infiltration were much lower than that without metal oxide infiltration, 60%-80% polarization resistance decrease was reached by metal nitrate solution infiltration. The activation energy of oxygen reduction reaction derived from polarization resistance showed that the performance of LSM-YSZ with different metal oxide infiltration has different activation energy decrease, Co nitrate infiltration showed the biggest activation energy decrease. Mn, Fe and Cu nitrate solution infiltrated LSM-YSZ showed good polarization resistance decrease at the tested temperature range.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2007年第7期1287-1290,共4页
Chinese Journal of Inorganic Chemistry
