Template-free low temperature hydrothermal synthesis and characterization of rod-shaped manganese oxyhydroxides and manganese oxides

被引：46

作者：

Sampanthar, Jeyagowry T. ^{[1
]}

Dou, Jian ^{[1
]}

Joo, Gan Geok ^{[1
]}

Widjaja, Effendi ^{[1
]}

Eunice, Low Qui Hui ^{[1
]}

机构：

[1] Agcy Sci Technol & Res, Inst Chem & Engn Sci, Jurong Isl 627833, Singapore

来源：

NANOTECHNOLOGY | 2007年 / 18卷 / 02期

关键词：

D O I：

10.1088/0957-4484/18/2/025601

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Single-crystalline MnOOH (gamma-MnOOH) and MnO2 nanorods (beta-MnO2 and alpha-MnO2) were synthesized by redox reaction of a mixture of KMnO4 and Mn(CH3COO)(2) at various pH levels at a temperature range of 120-180 degrees C. The products were characterized by powder x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), Raman and infra-red spectroscopy, field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). It is interesting to find that the prepared MnOOH and MnO2 all have one-dimensional nanostructures. The catalytic activity of MnO2 nanorods was studied for selective catalytic sulfur oxidation of model diesel containing 4,6-dimethyl dibenzothiophene in the presence of air as oxidant.

引用

页数：9

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