%A HAN Ling, NI Ji-Peng, ZHANG Liang-Miao, YUE Bao-Hua, SHEN Shan-Shan, ZHANG Hao, LU Wen-Cong %T Controlled Synthesis of Mesoporous MnO2 Nanospindles %0 Journal Article %D 2011 %J Acta Phys. -Chim. Sin. %R 10.3866/PKU.WHXB20110318 %P 743-748 %V 27 %N 03 %U {http://www.whxb.pku.edu.cn/CN/abstract/article_27434.shtml} %8 2011-03-03 %X

We synthesized mesoporous MnO2 nanospindles by a one-step hydrothermal process in an aqueous solution of KMnO4 and glucose. The structure, morphology, purity, and size of the products were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), high resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), and nitrogen adsorption/desorption (BET) measurements. The reaction time and concentrations of glucose influenced the final structures and shapes of the MnO2 nanospindles. The length to diameter ratio of the MnCO3 precursor nanospindles can be easily tuned from 1.35:1 to 2.89:1. A possible formation mechanism for the mesoporous MnO2 nanospindles is proposed and discussed.