同轴静电纺丝技术制备ZnO@CeO2纳米电缆

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，所得到的产物为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>300 μm，对其形成机理进行了分析。

Preparation of ZnO@CeO2 Nanocables by Coaxial Electrospinning

ZnO@CeO2 coaxial nanocables were successfully synthesized 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 with a diameter of ca.90 nm，core diameter of ca.60 nm and shell thickness of ca.15 nm. The nanocables 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 is preliminarily investigated.