Synthesis and characterization of ZnO nanostructures by two-step oxidation of Zn nano- and microparticles

被引：34

作者：

Gui, YH ^{[1
]}

Xie, CS ^{[1
]}

Zhang, QY ^{[1
]}

Hu, ML ^{[1
]}

Yu, J ^{[1
]}

Weng, Z ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Mat Sci & Engn, State Key Lab Plast Forming Simulat & Mould Techn, Wuhan 430074, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2006年 / 289卷 / 02期

基金：

中国国家自然科学基金;

关键词：

H2O2; pre-oxidation; thermal oxidation; ZnO nanostructures growth; zinc particles;

D O I：

10.1016/j.jcrysgro.2005.11.114

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

H2O2 was employed to pre-oxidize the Zn nano- and microparticles and then oxide films with different thickness coated on the surface of the particles were achieved. TG-DSC examinations were carried out for the Zn nano- and microparticles treated with and without H2O2 pre-oxidization as well as the SEM technologies for the corresponding morphologies of the thermally oxidized products. There are tremendous differences on the thermal behaviors and the morphologies between the nano- and microparticles, namely, the treatment with H2O2 pre-oxidization brought much effect on the Zn nanopartides but little on the Zn microparticles for the thermal behaviors and resulted in ZnO chestnut bur-like particles, needles, and pellets morphologies for nanoparticles, and only chestnut bur-like particles for microparticles after thermal oxidation. The models for vapor-solid (VS) growth mechanism resulted in ZnO nanostructures growth were presented. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：663 / 669

页数：7

共 24 条

[1] Growth and characterization of ZnO thin films grown by pulsed laser deposition [J].