摘要
采用硝酸盐/柠檬酸溶胶-凝胶法制备混合氧化物MO-SDC(M=Cu,Ni,Co;SDC=Ce0.9Sm0.1O1.95)。将导电炭黑均匀分散到MO-SDC中,将得到的材料作为阳极并采用共压法制备成单电池。与MO-SDC作阳极材料对比,导电炭黑的加入可以改善阳极材料的微结构,提高电池的电导率。单电池性能使用I-V测试仪进行测试,从曲线可以看到添加了1.5%(质量分数)导电炭黑的MO-SDC,在氢气作为燃料气体时,电池的比功率可以达到0.285W/cm2。MO-SDC的焙烧温度同样影响着电化学性能,通过X射线衍射光谱法(XRD)以及I-V测试曲线确定在550℃焙烧1h为最佳条件。
Mixture oxides MO-SDC （M = Cu, Ni, Co; SDC = Ce0.9Sm0.1O1.96） were synthesized by citrate/nitrate sol-gel method, Carbon black （CB） was dispersed into MO-SDC, and the material was used as anode of solid oxide fuel cell （SOFC）. Comparing with the basic MO-SDC anode, the addition of CB improved the anode properties of the SOFC, which changed the microstructures of the anode materials and enhanced their electron conductivity. Single cell performance was evaluated by /-V measurements. The curves show that the specific power of MO-SDC with 1.5% CB （1.5% CB-MO-SDC for short） achieves 0.285 W/cm^2 with H2 as fuel. Roasted temperature also strongly influenced the electrochemical performance of 1.5% CB-MO-SDC material. The results of XRD spectrum and I-V measurement curves show that 1 h is optimal for roasting at 550 ℃.
出处
《电源技术》
CAS
CSCD
北大核心
2007年第11期869-872,共4页
Chinese Journal of Power Sources
