COPPER ANODE SOLID OXIDE FUEL CELLS FOR DIRECT HYDROCARBON OXIDATION
This paper described results on the use of cathode supported configurations for easy manufacturing of copper cermet anodes via screen-printing and low temperature calcinations. Both LSM-YSZ (LSM=(La0.8Sr0.2)0.98MnO3, YSZ=8 mol% Y2O3-stabilized ZrO2) and La0.8Sr0.2FeO3 (LSF) infiltrated YSZ were used as thick substrates. Maximum power densities for LSM-YSZ supported SOFCs with CuO-YSZ-ceria anodes at 800℃ were 0.26 W·cm-2 and 0.17 W·cm-2 in hydrogen and propane, respectively. The substitution of samarium-doped ceria (SDC, Sm0.15Ce0.85O1.95), a mixed ionic and electronic conductor, for YSZ in the copper anode resulted in enhanced maximum power densities, e.g., 0.35 W·cm-2 for hydrogen and 0.22 W·cm-2 for propane. Impedance analysis revealed that the anodic polarization resistance for CuO-SDC-ceria in hydrogen was much lower than for CuO-YSZ-ceria, e.g., 0.2 Ω·cm2 versus 0.7Ω·cm2 at 800℃, and that the cathodic polarization resistance for LSM-YSZ fired at 1275℃ was 0.5 Ω·cm2 at 800℃. In comparison, substantially reduced polarization resistance values were observed for LSF infiltrated YSZ cathodes, e.g., 0.05Ω·cm2 and 0.1Ω·cm2 at 800℃ and 700℃, respectively. The CuO-SDC-ceria anode SOFCs with supporting LSF infiltrated YSZ cathodes were tested in hydrogen, propane, dodecane and low sulfur diesel, yielding maximum power densities of 0.62 Wcm-2, 0.37 W·cm-2, 0.34 W·cm-2 and 0.36 W·cm-2, respectively.
ZHONGLIANG ZHAN TINGLIAN WEN
Research Center of Energy Conversion Materials, Shanghai Institute of Ceramics,Chinese Academy of Sc Research Center of Energy Conversion Materials, Shanghai Institute of Ceramics, Chinese Academy of S
国际会议
The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)
武汉
英文
981-993
2010-05-02（万方平台首次上网日期，不代表论文的发表时间）