Preparation of Co2+-doped ZnAl2O4 nanoparticles by citrate sol-gel method

被引：58

作者：

Duan, XL ^{[1
]}

Yuan, DR ^{[1
]}

Sun, ZH ^{[1
]}

Luan, CN ^{[1
]}

Pan, DY ^{[1
]}

Xu, D ^{[1
]}

Lv, MK ^{[1
]}

机构：

[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 386卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

nanostructures; sol-gel synthesis; x-ray diffraction; luminescence;

D O I：

10.1016/j.jallcom.2004.05.059

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：

Nano-sized ZnAl2O4 particles doped with Co2+ ions were prepared by a citrate sol-gel method. The precursor was prepared from metal nitrates and citric acid and heat-treated at 600-900degreesC. The nanocrystalline Co2+:ZnAl2O4 is characterized by X-ray diffraction transmission electron microscopy and luminescence spectroscopy. The precursor gel began to crystallize to the ZnAl2O4 nanopowders at 600degreesC. The average particles size was estimated as 16-30 nm in the temperature range of 600-900degreesC. The emission spectra of Co2+ZnAl2O4 in the visible region were characterized by the tetrahedrally coordinated Co2+. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：311 / 314

页数：4

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