固体氧化物燃料电池Cu-LSCM-CeO_2/LSCM-YSZ/Ni-ScSZ复合阳极制备及性能  

Fabrication and Characterization of the Ni-ScSZ Composite Anodes with a Cu-LSCM-CeO_2 Catalyst Layer in the Thin Film SOFC

作　　者：吕尧[1] 黄波[1] 顾习之[1] 候春一 胡一星[1] 王晓颖[1] 朱新坚[1] 

机构地区：[1]上海交通大学机械与动力工程学院燃料电池研究所,上海200240

出　　处：《电化学》2014年第5期470-475,共6页Journal of Electrochemistry

基　　金：国家自然科学基金项目(No.51201098)资助

摘　　要：采用流延法制得LSCM-YSZ阳极支撑层/Ni-ScSZ阳极活性层/ScSZ电解质层复合膜,在LSCM-YSZ支撑层上印刷一层Cu-LSCM-CeO2阳极催化层,即Cu-LSCM-CeO2/LSCM-YSZ/Ni-ScSZ功能梯度层阳极.研究表明,Cu/LSCM/CeO2质量配比为2:7:1功能梯度阳极(LSCM-YSZ2010)有较好的性能,单电池以氢气和乙醇为燃料(750oC)最大功率密度分别为511和390 mW·cm-2.单电池稳定性实验表明,LSCM-YSZ2010阳极单电池以乙醇为燃料750oC长时间运行218 h,性能稳定.X-射线能量散射分析表明该阳极具有较好的抗碳沉积性能.Solid oxide fuel cell （SOFC） directly operating on hydrocarbon without external reforming has the potential of greatly speeding up the application of SOFCs for transportation. In this paper, a three-layer structure anode was fabricated by tape casting and screen printing method. The addition of Cu-LSCM-CeO2 to the supported anode surface presented better performance running on H~ and ethanol. The maximum power densities were 511 and 390 mW·cm-% respectively running on H2 and ethanol at 750 ℃. No significant degradation was observed on the anode. Consequently, the Cu-LSCM-CeO2 catalyst layer on the surface of the LSCM-YSZ support layer makes it possible to have good stability for long-term operation in ethanol fuel due to free carbon deposition.

关 键 词：固体氧化物燃料电池 催化层 碳沉积 阻抗谱 电化学性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动]