中温直接碳氢化合物固体氧化物燃料电池Cu-CeO_2-ScSZ阳极的研究  

Intermediate temperature solid oxide fuel cells with Cu-CeO_2-ScSZ anode for direct hydrocarbon fuels

作　　者：安胜利[1] 李晓红[1] 宋希文[1] 赵文广[1] 赵永旺[1] 周芬[1] 

机构地区：[1]内蒙古科技大学,中国包头014010

出　　处：《中国有色冶金》2009年第1期57-63,共7页China Nonferrous Metallurgy

基　　金：国家自然科学基金项目(50564002);国家重点基础研究发展计划(973计划)项目(2008CB617603)

摘　　要：采用共沉淀法合成了氧化钪稳定氧化锆(9 mol%Sc_2O_3,ScSZ)粉末。应用热膨胀分析仪研究了ScSZ粉末的烧结特性,采用扫描电镜观察了烧结试样的微观组织,利用交流阻抗法测定了ScSZ电解质在500～900℃的电导率。制备了以ScSZ为电解质、Cu-CeO_2-ScSZ为阳极、ScSZ-LSM为阴极的阳极支撑燃料电池。在700℃时,直接以氢气、丁烷和甲烷为燃料,测得的电池最大输出功率密度分别为280 mW/cm^2、142 mW/cm^2和120 mW/cm^2。Scandia-stabilized zirconia （9 mol% Sc2O3, ScSZ） powder was synthesized using a co-precipitation technique. The sintering characteristics of the ScSZ powder and the microstructures of sintered samples were examined with dilatometry and SEM. The electrical conductivity of ScSZ electrolyte was measured using the AC impedance method in the temperature range from 500℃ to 900℃. The ScSZ powder was used to prepare anode-supported fuel cells using a tape casting technique. The cells with a Cu-CeO2-ScSZ anode and a ScSZ-LSM cathode demonstrated the ability to directly operate with dry hydrogen, butane and methane fuels at 700℃. The cell maximum power densities were 280 mW/cm^2, 142 mW/cm^2 and 120 mW/cm^2 for H2, c4H10 and CH4 fuel, respectively.

关 键 词：SOFC ScSZ电解质 Cu-CeO2-ScSZ阳极 

分 类 号：TM911.4[电气工程—电力电子与电力传动] O646.2[理学—物理化学]