Low-temperature synthesis of metal tungstates nanocrystallites in ethylene glycol

被引：71

作者：

Chen, D ^{[1
]}

Shen, GZ ^{[1
]}

Tang, KB ^{[1
]}

Zheng, HG ^{[1
]}

Qian, YT ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Struct Res Lab, Hefei 230026, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 14期

基金：

中国国家自然科学基金;

关键词：

nanostructures; chemical synthesis; x-ray diffraction;

D O I：

10.1016/j.materresbull.2003.09.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we report the low-temperature synthesis of metal tungstate, MWO4 (M = Ca, Sr, Ba, Cd, Zn, Pb) nanocrystallites. By reaction between metal chloride and sodium tungstate in ethylene glycol at 180 degreesC for 10 h, well-crystallized tungstate particles were successfully obtained. Characterization by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM) shows that the product powders consist of nanosize particles. Photolummescence measurement reveals that the as-obtained CaWO4, CdWO4, and PbWO4 show excitonic peaks at about 430, 500 and 500 nm, respectively. The solvent and reaction conditions are important in the formation of the products. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1783 / 1789

页数：7

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