Polyhedral construction of hollow ZnO microspheres by CO2 bubble templates

被引：45

作者：

Yan, Chenglin

Xue, Dongfeng

机构：

[1] Dalian Univ Technol, Sch Chem Engn, Dept Mat Sci & Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China

[2] Dalian Univ Technol, Key Lab Micro Nano Technol & Syst Liao Ning Prov, Dalian 116023, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 431卷 / 1-2期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

microstructured materials; ZnO; chemical synthesis;

D O I：

10.1016/j.jallcom.2006.05.064

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new type of complex ZnO hollow structures constructed by polyhedral particles has been prepared via a facile solution-phase route, in which ZnO precursors (ZnCO3) are synthesized through the reaction between Zn(CH3COOH)(2) and NH4HCO3 in aqueous solution. Similar morphology of hollow ZnO microspheres can be effectively obtained simply by the pyrolysis method. The formation mechanism of hollow microspheres is mainly via an oriented aggregation process. CO, bubble templates produced during the reaction to form the aggregation centers help the small particles to aggregate and form hollow microspheres. The surface morphology and size of these microspheres can be tuned by simply varying the reaction temperature. The hollow ZnO microspheres constructed by polyhedral particles may bring novel physical and chemical properties in the field of microscale electronics and photonics. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：241 / 245

页数：5

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