固体氧化物燃料电池Cu-LSCM-CeO2/LSCM-YSZ/Ni-ScSZ复合阳极制备及性能

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（750 ^oC）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750 ^oC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.

Fabrication and Characterization of the Ni-ScSZ Composite Anodes with a Cu-LSCM-CeO2 Catalyst Layer in the Thin Film SOFC

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 H₂ and ethanol. The maximum power densities were 511 and 390 mW?cm^-2, respectively, running on H₂ and ethanol at 750 °C. 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.