Fabrication of hollow ZnO microsphere with zinc powder precursor

被引：24
|
作者：
Kou, Huamin [1 ]
Wang, Jing [1 ]
Pan, Yubai [1 ]
Guo, Jingkun [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2006年 / 99卷 / 2-3期
基金：
中国国家自然科学基金;
关键词：
oxides; heat treatment; coatings;
D O I：
10.1016/j.matchemphys.2005.11.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A facile approach is reported for the preparation of hollow ZnO microspheres using Zn powders as raw materials. Firstly, Zn(OH)(2) was precipitated on the surface of Zn powder to form core/shell structure in solution, and subsequent calcination these core/shell composite particles at 650 degrees C in air would lead to the formation of ZnO hollow spheres whose diameter were determined by the dimension of the used Zn powder. XRD, TEM, SAED, EDS and UV-vis were used to characterize the as-prepared samples. A formation mechanism is proposed to be a process following the formation of Zn/Zn(OH)(2) core/shell particles, the decomposition of Zn(OH)(2) shell to ZnO, and the sublimation and oxidation of Zn core. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：325 / 328
页数：4
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