Preparation of ZnO nanoparticles by a surfactant-assisted complex sol-gel method using zinc nitrate

被引：59

作者：

Zhang, Y. L. ^{[1
]}

Yang, Y. ^{[1
]}

Zhao, J. H. ^{[1
]}

Tan, R. Q. ^{[2
]}

Cui, P. ^{[1
]}

Song, W. J. ^{[1
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Div Funct Mat & Nanodevices, Ningbo 315201, Zhejiang, Peoples R China

[2] Ningbo Univ, Coll Informat Sci & Engn, Ningbo 315211, Peoples R China

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2009年 / 51卷 / 02期

基金：

浙江省自然科学基金;

关键词：

ZnO; Nanoparticles; Sol-gel; Sintering; GRAIN-GROWTH; DENSIFICATION; MORPHOLOGY; GELATION;

D O I：

10.1007/s10971-009-1959-5

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper presents a surfactant-assisted complex sol-gel method for the controlled preparation of Zinc Oxide (ZnO) nanoparticles using zinc nitrate and citric acid as starting material. ZnO nanoparticles with a pure wurtzite structure were obtained after calcination at 773 K. The effects of the citric acid concentration, the pH, and the surfactants on the average particle size and morphology of the ZnO nanoparticles were investigated using X-ray diffraction and scanning electron microscopy. Well dispersed ZnO nanoparticles with a uniform size distribution were obtained using polyethylene glycol (PEG) 2000 as a surfactant. During sintering, the ZnO nanoparticles revealed isotropic growth below 1,373 K and anisotropic growth above 1,473 K. The particles' activation energy was calculated to be 140 +/- A 6 kJ/mol between 773 and 1,373 K.

引用

页码：198 / 203

页数：6

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