Spherical hollow assembly composed of Cu2O nanoparticles

被引：112

作者：

Yang, M ^{[1
]}

Zhu, JJ ^{[1
]}

机构：

[1] Nanjing Univ, Dept Chem, Lab Mesoscop Mat, Nanjing 210093, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2003年 / 256卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

nanostructures; growth from solutions; oxides; nanomaterials; semiconducting materials;

D O I：

10.1016/S0022-0248(03)01298-3

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Hollow spheres of Cu2O with an average diameter of 0.3-0.6 mum have been prepared by a simple reaction between CuO suspension and NH2OH in the presence of deionized gelatin at room temperature. Gelatin played a decisive role as an inhibitor of the direct attack of NH2OH to CuO surfaces and coagulation of the growing Cu2O in producing the hollow spheres. The products were characterized by X-ray powder diffraction, transmission electron microscopy, X-ray photoelectron spectra techniques and UV-visible absorption spectroscopy. The band gap is estimated to be 2.60eV according to the results of optical measurements of the hollow spheres. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：134 / 138

页数：5

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