Hydrothermal synthesis and characterization of orchid-like MnO₂ nanostructures

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• 作者：Xueliang Li ; Wenjie Li ; Xiangying Chen ; Chengwu Shi
• 关键词：A1. Chromium-doping ; A1. Orchid-like ; A2. Hydrothermal synthesis ; B1. Manganese dioxide
• 刊名：Journal of Crystal Growth
• 出版年：2006
• 期刊代码：49_00220248
• 类别：ch
• 出版时间：29 December 2006
• 卷：297
• 期：2
• 页码：387-389
• 文件大小：276 K

摘要

Orchid-like Cr-doped MnO₂ nanostructures have been synthesized via a hydrothermal method, using KClO₃ as the oxidant. The as-obtained samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), transmission electron microscopy (TEM) and field emission scanning electron microscopy (FE-SEM). Results show that the morphologies of orchid-like MnO₂ are made up of nanorods. The influences of chromium in the solution on the morphology of the products are discussed. The electrochemical characterization was carried out by cyclic voltammetry, which indicated that the products were excellent electrode material for super-capacitor.