Ba_(0.8)Sr_(0.2)Ti_(0.5)Mn_(0.5)O_3纳米晶体的合成及气敏性质研究  

Study on Synthesis and Gas Sensitivity Property of Ba_(0.8)Sr_(0.2)Ti_(0.5)Mn_(0.5)O_3 nanorods

作　　者：夏川茴[1] 韩向宇[1] 殷鹏飞[1] 

机构地区：[1]重庆交通大学理学院,重庆400074

出　　处：《材料导报》2011年第18期38-40,共3页Materials Reports

基　　金：重庆交通大学青年基金(XN(2009)16)

摘　　要：采用复合碱媒介法(CHM),在合成BaMnO3和Ba0.5Sr0.5MnO3的基础上,以Sr(NO3)2、BaCO3以及MnO2和TiO2为原料,在200℃、24h的生长条件下,用20%的Sr离子替代20%的Ba离子,用50%的Ti离子替代50%的Mn离子成功合成了Ba0.8Sr0.2Ti0.5Mn0.5O3纳米晶体。采用XRD、SEM及EDS对产物的晶相、形貌和成分进行了分析,对Ba0.8Sr0.2Ti0.5Mn0.5O3制作的电极进行了气敏性质的测定。Ba0.8Sr0.2Ti0.5Mn0.5O3 nanorods started from Sr（NO3）2,BaCO3 ,MnO2 and TiO2 were successfully synthesized by a composite-hydroxide-mediated（CHM） method at 200℃ for 24h. Morphology, composition and crystalline phase were investigated by XRD, SEM and EDS. Gas sensitivity was investigated on the Ba0.8Sr0.2Ti0.5Mn0.5O3 nanorods for O2. The results show that the nanorods may be adopted for development of gas sensors with performances suitable for practical applications.

关 键 词：复合碱媒介法 钛锰酸锶钡 气敏性质 

分 类 号：TK121[动力工程及工程热物理—工程热物理]