摘要
应用双微乳液法,在聚乙二醇辛基苯基醚(TX100)/正己醇/环己烷/水体系的油包水(W/O)型微乳液中合成了掺锡和金的氧化铁前驱体,对前驱体经400℃焙烧后所得的粉体进行了表征和气敏性测试,表明制得的掺杂0.5mol%Sn和0.5mol%Au的粉体对C2H5OH气体有较好的气敏性。
The Sn/Fe2O3 and Sn/Au/Fe2O3 particles were prepared in W/O microemulsion system containing TX100/n- hexanol/cyelohexane/H2O. The powders calcined at 400℃ were characterized by XRD,Zeta potential analysis and gas sensitivity measurement. The material doped with 0.5mol% Sn -0.5mol% Au reveals the smallest crystallite size and exhibits good gas sensing response to C2H5OH. The sensitivity reaches 13 when the heating current is 110mA and the C2H5OH concentration is 1000ppm.
出处
《功能材料与器件学报》
EI
CAS
CSCD
北大核心
2006年第6期513-516,523,共5页
Journal of Functional Materials and Devices
基金
福建省教育厅基金(K02011)
福州大学科技发展基金(No.XKJ(YM)-0101)
关键词
微乳液法
氧化铁
掺杂
气敏性
mieroemulsion
Fe2O3
doping
gas sensitivity
