水热法合成和表征有序排列BiFeO_3纳米线  

Synthesis and Characterization Well-Aligned Bismuth Ferrite Nanowires Using Hydrothermal Method

作　　者：刘运[1] 苗鸿雁[2] 朱刚强[3] 谈国强[2] 

机构地区：[1]陕西科技大学电气与电子工程学院,陕西咸阳712081 [2]陕西科技大学材料科学与工程学院,陕西咸阳712081 [3]陕西师范大学物理学与信息技术学院,陕西西安710062

出　　处：《稀有金属材料与工程》2007年第A02期243-246,共4页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(50372039)

摘　　要：以硝酸铋和氯化铁为原料,NaOH为矿化剂,水热条件下制备了有序排列BiFeO_3纳米线。利用透射电子显微镜(TEM)、高分辨透射电镜(HRTEM)和X射线衍射仪(XRD)对样品进行了表征。研究了矿化剂浓度和反应温度对产物结构和形貌的影响,结果表明在160～180℃制备了有序排列的BiFeO_3纳米线,纳米线的直径为50～100 nm,长为200～500 nm。Well-aligned bismuth ferrite nanowires were synthesized at a lower temperature by hydrothermal method, by Bi（NO3）3·SH2O and FeC13·6H2O as the raw materials. The structures of bismuth ferrite were characterized by X-ray diffractometer. The morphologies were observed by using TEM, HRTEM, EDS. Influences of the hydrothermal reaction temperature and the mineralizers concentrations on the morphologies and structure of the products were investigated. The results shows that the diameter size of the well aligned nanowires synthesized at 160-180℃ distributes in the range of 50 nm to 100 nm and the length of nanowires varys from 200 to 500nm.

关 键 词：水热合成 有序排列 铁酸铋 纳米线 

分 类 号：TB383.1[一般工业技术—材料科学与工程]