A simple direct preparation of nanocrystalline γ-Mn2O3 at ambient temperature

被引：40

作者：

Gui, Z

Fan, R

Chen, XH ^{[1
]}

Wu, YC

机构：

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

[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China

[3] Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2001年 / 4卷 / 06期

基金：

中国国家自然科学基金;

关键词：

synthesis; gamma-Mn2O3; nanocrystalline; microstructure;

D O I：

10.1016/S1387-7003(01)00196-4

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Nanocrystalline gamma -Mn2O3 has been prepared directly by the reduction of aqueous KMnO4 with hydrazine solution at ambient temperature, without post-treatment of heating. X-ray powder diffraction (XRD) pattern demonstrates its good phase purity. Transmission electron microscopy (TEM) images show homogeneous nanoparticles with a narrow size distribution. The average grain size is about 9 nm. The evolution of crystallite size upon the annealing temperature was investigated. The effect of various reaction factors, e.g., pH, concentration of N2H4 and additants, on the nature of products was also investigated. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：294 / 296

页数：3

共 22 条

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