Synthesis of manganese oxide hollow urchins with a reactive template of carbon spheres

被引：30

作者：

Wang, Nan ^{[1
]}

Gao, Yu ^{[1
]}

Gong, Jian ^{[1
]}

Ma, Xinyan ^{[1
]}

Zhang, Xiaoli ^{[1
]}

Guo, Yihang ^{[1
]}

Qu, Lunyu ^{[1
]}

机构：

[1] NE Normal Univ, Fac Chem, Inst Polyoxometalate Chem, Key Lab Polyoxometalate Sci,Minist Edu, Changchun 130024, Peoples R China

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2008年 / 24期

关键词：

carbon spheres; template synthesis; manganese; hollow urchins;

D O I：

10.1002/ejic.200800236

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this paper, a novel route to synthesize manganese oxide (MnO2) hollow urchins by a reactive template of carbon spheres is described. The formation process of the MnO2 hollow urchins and the mechanism for the removal of the carbon spheres are suggested. The results of scanning electron microscopy and transmission electron microscopy indicate that MnO2 shows a hollow-urchin structure with an average diameter of 1.5 mu m and with cavities that are about 250-500 nm in diameter. The X-ray diffraction pattern indicates that the as-prepared hollow urchins are gamma-MnO2. It has a high Brunauer-Emmett-Teller surface area of 110m(2)g(-1) and a mesoporous structure. In addition, the magnetic properties of the gamma-MnO2 hollow urchins are investigated. This method opens a way to obtain different morphologies of metal oxides by changing the morphologies of the reactive carbon template, ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).

引用

页码：3827 / 3832

页数：6

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