Preparation of β-MnO2 nanorods through a γ-MnOOH precursor route

被引：75

作者：

Xi, GC

Peng, YY

Zhu, YC

Xu, LQ

Zhang, WQ

Yu, WC

Qian, YT ^{[1
]}

机构：

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

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

来源：

MATERIALS RESEARCH BULLETIN | 2004年 / 39卷 / 11期

基金：

中国国家自然科学基金;

关键词：

oxides; chemical synthesis; crystal growth; crystal structure;

D O I：

10.1016/j.materresbull.2004.05.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new MnOOH precursor route has been developed to synthesize single-crystalline nanorods of tetragonal beta-MnO2. Uniform gamma-MnOOH nanorods were first prepared by reducing KMnO4 with KI under hydrothermal conditions at 120 degreesC. After calcination of the gamma-MnOOH nanorods at 250 degreesC for 2 h in air, beta-MnO2 nanorods retaining the morphologies of gamma-MnOOH nanorods were obtained. The temperature, time and heating speed of calcination were found to be important for the morphologies of the beta-MnO2 nanorods. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1641 / 1648

页数：8

共 31 条

[1] Surface properties of sol-gel synthesized δ-MnO2 as assessed by N2 sorptometry, electron microscopy, and X-ray photoelectron spectroscopy [J].