同轴静电纺丝技术制备ZnO@CeO_2纳米电缆  

Preparation of ZnO@CeO_2 Nanocables by Coaxial Electrospinning

作　　者：徐淑芝[1] 董相廷[1] 盖广清[1] 刘桂霞[1] 王进贤[1] 鲁统晓[1] 

机构地区：[1]长春理工大学化学与环境工程学院,长春130022

出　　处：《高等学校化学学报》2011年第6期1255-1260,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:50972020);吉林省科技发展计划重大项目(批准号:20060504;20070402);吉林省教育厅"十一五"科学技术研究项目(批准号:2006JYT05;2007-45);吉林省环保局科技项目(批准号:2006-24);教育部科学技术研究重点项目(批准号:207026);长春市科技计划项目(批准号:2007045)资助

摘　　要：采用同轴静电纺丝技术,以硝酸铈、硝酸锌、聚乙烯吡咯烷酮、N,N-二甲基甲酰胺、甘油和氯仿为原料,制备了ZnO@CeO2同轴纳米电缆.用差热-热重分析、X射线衍射、扫描电镜、透射电镜和能谱仪对样品进行了表征.结果表明,所得产物为ZnO@CeO2同轴纳米电缆,以晶态CeO2为壳层,晶态ZnO为芯层,电缆直径约90 nm,芯层直径约60 nm,壳层厚度约15 nm,电缆长度大于300μm,并分析了其形成机理.ZnO@CeO2 coaxial nanocables were successfully prepared by coaxial electrospinning,using cerous nitrate,zinc nitrate,polyvinyl pyrrolidone,N,N-dimethylformamide,glycerin and chloroform as starting materials.The samples were characterized by thermogravimetry and differential thermal analysis,X-ray diffractometry,scanning electron microscopy,transmission electron microscopy and energy dispersive spectroscopy techniques.The results show that ZnO@CeO2 coaxial nanocable has a diameter of ca.90 nm,core diameter of ca.60 nm and shell thickness of ca.15 nm.The nanocable has a core of crystalline ZnO and a shell of crystalline CeO2.The length of the ZnO@CeO2 nanocables is greater than 300 μm.The formation mechanism of the ZnO@CeO2 nanocables was preliminarily investigated.

关 键 词：同轴静电纺丝 纳米电缆 氧化铈 氧化锌 

分 类 号：O614[理学—无机化学] TB331[理学—化学]