Hydrothermal preparation of nanostructured MnO2 and morphological and crystalline evolution
Yingpin LI 1Xiaoquan ZHOU 1Huijing ZHOU 1Zhurui SHEN 1Tiehong CHEN1
作者信息
- 1. Department of Materials Chemistry,College of Chemistry,Nankai University,Tianjin 300071,China
- 折叠
Abstract
Manganese dioxides with various morphologies were prepared using a common hydrothermal method without any templates or additives.The evolution of the morphology was accompanied by the gradual conversion of the polymorphic forms from γ-type to β-type.Meanwhile,MnO2 microspheres,urchin-like nanostructures and nanowires were successfully synthesized.The products were characterized by X-ray diffraction,X-ray photoelectron spectroscopy,scanning electron microscope and transmission electron microscope.The evolution process can be explained by the Ostwald Ripening mechanism.
Key words
MnO2,hydrothermal preparation,crystal type,core-shell structure,nanowires引用本文复制引用
出版年
2008
NETL
NSTL
万方数据