Facile synthesis, magnetic and optical properties of double-shelled Co3O4 hollow microspheres

被引：25
|
作者：
Hu, Wenlong [1 ]
Wang, Liuding [1 ]
Wu, Qiaofeng [1 ]
Wu, Hongjing [1 ]
机构：
[1] Northwestern Polytech Univ, Dept Appl Phys, Xian 710072, Peoples R China
来源：
ADVANCED POWDER TECHNOLOGY | 2014年 / 25卷 / 06期
关键词：
Cobalt oxide; Double-shelled hollow spheres; Hydrothermal reaction; Transmission electron microscopy; SPHERES; TEMPLATE; NANOPARTICLES; FABRICATION; CAPSULES;
D O I：
10.1016/j.apt.2014.07.007
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Double-shelled Co3O4 hollow spheres are successfully synthesized by chemically induced self-assembly in the hydrothermal environment. The morphology, chemical composition, and crystalline structure of the double-shelled Co3O4 hollow spheres are characterized by different techniques, such as powder X-ray diffraction (PXRD), Raman spectrum, X-ray photoelectron spectrum (XPS), field emission scanning electron microscope (FESEM), and high resolution transmission electron microscope (HRTEM) with selected area electron diffraction (SAED). Magnetic measurements and optical spectra suggest the double-shelled Co3O4 hollow spheres exhibit close to a weak ferromagnetic behaviour and enhanced photo-generated carrier separation. Since this synthetic route is simple, convenient, and "green", it is possible to extend this synthetic method to preparation of a wide range of the multishelled hollow spheres of metal oxides for semiconductor device applications. (C) 2014 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
引用
收藏
页码：1780 / 1785
页数：6
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