电源技术2011，Vol.35Issue(2)：144-147,4.
低温SOFC的SDC-碳酸盐复合物电解质
SDC-carbonate composite electrolytes for low- temperature SOFC
摘要
Abstract
Samarium doped ceria (SDC)-carbonate composites were developed as the electrolytes for low temperature solid oxide fuel cells. SDC powders were synthesized by combustion and co-precipitation processes,respectively, and denoted as NSDC and CSDC. The composite electrolytes consisting of SDC derived from these two methods and binary carbonates (Li2CO3-Na2CO3) were prepared. The structure, morphology and electrical property were examined by X-ray diffraction, scanning electron microscope and conductivity measurements. The results show that the morphology and electrical property are affected by the different oxide powders. The conductivity is greatlyimproved and sharply increased at the temperature close to the melting point of the carbonates. The composite electrolyte made of NSDC exhibits higher conductivity than the other composite. With H2 as fuel and air as oxidant, the fuel cell based on NSDC-carbonate electrolyte exhibits an open circuit voltage of 1.02 V and the maximum power density of 473 mW/cm2 at 600 ℃.关键词
SDC/碳酸盐/复合电解质/低温固体氧化物燃料电池(LTSOFC)Key words
samarium doped ceria (SDC)/ carbonate/ composite electrolyte/ low temperature solid oxide fuel cell (LTSOFC)分类
信息技术与安全科学引用本文复制引用
邸婧,陈明鸣,王成扬,范良栋,朱斌..低温SOFC的SDC-碳酸盐复合物电解质[J].电源技术,2011,35(2):144-147,4.基金项目
天津市自然科学基金项目(07jcybjc02500). （07jcybjc02500）
