Sr，Ti双位掺杂铬酸镧电导性能研究  

Electrical Conductivity of Sr and Ti doped LaCrO_3 Ceramics

作　　者：陈争辉[1] 潘伟[1] 李彬[1] 刘燕祎[1] 

机构地区：[1]清华大学材料科学与工程系,北京100084

出　　处：《稀有金属材料与工程》2007年第A02期593-595,共3页Rare Metal Materials and Engineering

基　　金：国家自然科学基金项目(50232020;50572042)

摘　　要：分别用固相反应法和凝胶注方法制备了固体氧化物燃料电池(SOFCs)阳极用La_xSr_(1-x)Cr_yTi_(1-y)O_3(LSCT)系列化合物,用SEM、XRD等手段研究了其显微结构,并测试了该材料的电导率,综合以上三项对La_xSr_(1-x)Cr_yTi_(1-y)O_3系列用作固体氧化物燃料电池阳极材料的性能进行评价,筛选了配方,并对制备工艺进行了讨论。Sr and Ti co-doped LaCrO3 （LaxSr1-xCryTi1-yO3） powders were synthesized from carbonate and oxides based on the principle of solid state reaction and gel-casting. XRD patterns indicated the perovskite structure was formed without any second phases when sintering at 1450 ℃ for 6 h by gel-casting, which was lower than by solid state reaction at 100 ℃. The total electrical conductivity was greatly depended on the ingredient, and reached the maximum when x=0.2, y=0.3.

关 键 词：阳极材料 固体氧化物燃料电池 双位掺杂铬酸镧 

分 类 号：TB302[一般工业技术—材料科学与工程] TM911.4[电气工程—电力电子与电力传动]