Synthesis and formation mechanism of urchin-like nano/micro-hybrid α-MnO2

被引：37

作者：

Chen, Yong ^{[1
,2
]}

Hong, Yuzhen ^{[1
,2
]}

Ma, Yanping ^{[1
,2
]}

Li, Jianbao ^{[1
,2
]}

机构：

[1] Hainan Super Resources Chem Mat, Minist Educ, Key Lab Applicat Technol, Haikou 570228, Peoples R China

[2] Hainan Univ, Hainan Prov Key Lab Res Utilizat Si Zr Ti Resourc, Haikou 570228, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 490卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

X-ray diffraction; Chemical synthesis; Nanostructures; SHAPE-CONTROLLED SYNTHESIS; HYDROTHERMAL SYNTHESIS; MNO2; NANOSTRUCTURES; ELECTROCHEMICAL CHARACTERIZATION; NANOWIRES; BETA-MNO2; ROUTE;

D O I：

10.1016/j.jallcom.2009.10.004

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：

Urchin-like nano/micro-hybrid alpha-MnO2 balls were prepared through the hydrothermal reaction of H2SO4 and KMnO4 without the use of templates, surfactants or other additives. The products were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectroscopy and X-ray diffraction (XRD). It indicates that the urchin-like alpha-MnO2 is composed of single crystalline alpha-MnO2 nanorods. The formation mechanism of urchin-shaped alpha-MnO2 was proposed and explained in detail on the basis of the time-dependent designed experiments combined with XRD analysis and TEM observations of the intermediates during the formation process. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：331 / 335

页数：5

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