Synthesis of porous and hollow microspheres of nanocrystalline Mn2O3

被引：56

作者：

Yang, ZH

Zhang, WX ^{[1
]}

Wang, Q

Song, XM

Qian, YT

机构：

[1] Hefei Univ Technol, Sch Chem Engn, Hefei 230009, Anhui, Peoples R China

[2] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Anhui, Peoples R China

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

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 418卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.cplett.2005.10.076

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：

In this Letter, we report the facile synthesis of novel porous and hollow microspheres of cubic Mn2O3 nanocrystals of 50-100 nm via the heat-treatment of MnCO3 microspheres, which were prepared simply by reacting the MnCl2 center dot 2H(2)O with Na2CO3 in aqueous solution at ambient temperature and pressure. The products were characterized by X-ray powder diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy (TEM) and field-emission scanning electron microscopy. Through TEM observation, the growth mechanism of the MnCO3 microspheres was revealed and the possible formation mechanism of the porous and hollow structure of the nanocrystalline Mn2O3 microspheres was also proposed. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：46 / 49

页数：4

共 17 条

[1] Valence-band x-ray photoelectron spectroscopic studies of manganese and its oxides interpreted by cluster and band structure calculations [J].