Abstract: In order to study the operation stability of solid oxide fuel cell with methane as fuel，10%CuO-Ce0.15Zr0.85O2 was prepared by the co-precipitation method and citric acid sol-gel method，respectively. YSZ electrolyte support planar SOFC with LSM cathode was made with 10%CuO-Ce0.15Zr0.85O2 and NiO/YSZ anode，respectively. XRD and SEM were used to characterize the anode materials and the structure of anode and cathode. The electrical performance of the cell with different anode materials were measured with methane as fuel. The performance to prevent carbon deposition of two Cu-Ce-Zr-O anode materials prepared by different methods were compared with methane as fuel. The anode structure and the electrical performance of citric acid sol-gel Cu-Ce-Zr-O anode was better than co-precipitation one. The long-term stability of two anodes prepared by two different Cu-Ce-Zr-O anode materials were better than conventional Ni-YSZ anode.

摘要： 为研究甲烷在固体氧化物燃料电池中操作稳定性，分别采用共沉淀法和柠檬酸溶胶-凝胶法制备了10%CuO-Ce0.15Zr0.85O2催化剂，并以此为阳极催化剂、LSM为阴极制成了YSZ电解质支撑的SOFC单电池。用XRD对材料进行表征；用SEM对阳极、阴极进行表征。以甲烷为燃料对单电池发电性能进行测试，研究了两种不同方法制备的Cu-Ce-Zr-O阳极催化剂的抗积炭性能。相对于共沉淀法，溶胶-凝胶法制备的阳极结构和发电性能都要优于前者。长期稳定性方面，共沉淀法和溶胶-凝胶法制备的Cu-Ce-Zr-O/YSZ阳极都较传统的Ni-YSZ阳极更能够长期稳定运行。