Wang Gongling, Lai Xiaoyong, Wang Dan
State Key Laboratory of Multi-Phase and Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
J Nanosci Nanotechnol. 2013 Feb;13(2):1423-6. doi: 10.1166/jnn.2013.5960.
Cadmium Oxide (CdO) hollow spheres have been synthesized by using carbon microsphere as sacrificial template. The products were characterized by X-ray powder diffraction (XRD), scanning electronic microscopy (SEM) and transmission electron microscopy (TEM). The average diameter and shell thickness of as-prepared hollow spheres are about 600 nm and 50 nm, respectively. The formation of hollow spheres was investigated and it was found that the shell formed when the heating temperature reached about 673 K and the sequential heat treatment could remove the carbon template. Moreover, the influence of other experimental parameters including concentration (0.1-5 M) and type of cadmium salts (cadmium chloride, cadmium acetate and cadmium nitrate, etc.) as well as type of solvents (water, ethanol and dimethylfomamide) were also investigated.
以碳微球为牺牲模板合成了氧化镉（CdO）空心球。采用X射线粉末衍射（XRD）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）对产物进行了表征。所制备空心球的平均直径和壳层厚度分别约为600 nm和50 nm。对空心球的形成过程进行了研究，发现当加热温度达到约673 K时形成壳层，随后的热处理可以去除碳模板。此外，还研究了其他实验参数的影响，包括镉盐的浓度（0.1 - 5 M）和类型（氯化镉、醋酸镉和硝酸镉等）以及溶剂的类型（水、乙醇和二甲基甲酰胺）。
