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.%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300 μm,并分析了其形成机理.
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