硅酸盐通报2012，Vol.31Issue(4)：789-793,5.
SmBaCo2O5+δ-Ce0.8Sm0.2O1.9复合阴极的热膨胀及电化学性能
Thermal Expansion and Electrochemical Performance of SmBaCo2O5+δ-Ce0.8Sm0.2O1.9 Composite Cathodes
摘要
Abstract
The cathode material SmBaCo2O5+δ ( SBCO) and electrolyte material Ce0.8 Sm0.2 O1.9 ( SDC ) were synthesized by the glycine-nitrate process ( GNP). SBCO-SDC composite cathodes were prepared with different content of SDC. The effects of SDC content on the properties of the composite cathodes, including thermal expansion, electrical conductivity and electrochemical performance were evaluated. XRD results showed no chemical reaction between SBCO cathode and SDC electrolyte at 1100 ℃. The thermal expansion coefficient ( TEC) and electrical conductivity of the electrode decrease with the increase of SDC content. The area specific resistance ( ASR) of the composite cathodes increase as the content of SDC increased. The ASR of SBCO-SDC with 20% in mass SDC is 0. 145 Ω · cm2 at 750 ℃ and the electrical conductivity of the electrode was higher than 100 S · cm-1 at 500-800 ℃ , which indicate that SBCO-20SDC composite cathode could be a promising cathode material for IT-SOFC.关键词
SmBaCo2O5+δ-Ce0.8Sm0.2O1.9/复合阴极/电化学性能Key words
SmBaCo2O5+δ-Ce0.8Sm0.2O1.9/ composite cathodes/electrochemical performance分类
信息技术与安全科学引用本文复制引用
靳宏建,王欢,蒋晓勇,张华..SmBaCo2O5+δ-Ce0.8Sm0.2O1.9复合阴极的热膨胀及电化学性能[J].硅酸盐通报,2012,31(4):789-793,5.基金项目
江苏高校优势学科建设工程资助项目 （）
