The effect of Fe doping on the properties of SOFC electrolyte YSZ
Pure YSZ (8 mol% yttria stabilized zirconia) and Fe-doped (2 mol% and 4 mol%) YSZ electrolytes were prepared and sintered at 1200℃ and 1400℃, respectively by solid state method. Their crystal structure, microstructure, sintering behavior, electrical conductivity, and performance as SOFC electrolyte were investigated. Fe can be dissolved into YSZ lattice and decrease the lattice parameter. When sintered at 1200℃, Fe dopant can make the YSZ electrolyte denser and increase its total conductivity. When sintered at 1400℃, the total conductivities of samples decrease for higher Fe dopant concentrations though the densities of samples increase. All the SOFCs with Fe-doped YSZ electrolytes show better performance than those with Fe-free electrolytes. The mechanisms of the effect of Fe doping on the properties of YSZ were analyzed.
Solid ozide fuel cells YSZ Electrolyte Fe Doping
Hongbo Gao Jiang Liu Hongyu Chen Shi Li Tianmin He Yuan Ji Jidong Zhang
School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640 College of Chemistry, South China Normal University, Guangzhou 510600, PR China College of Physics, Jilin University, Changchun 130023, PR China
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1620-1624
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）