Acta Phys. -Chim. Sin. ›› 2011, Vol. 27 ›› Issue (03): 743-748.doi: 10.3866/PKU.WHXB20110318

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles     Next Articles

Controlled Synthesis of Mesoporous MnO2 Nanospindles

HAN Ling, NI Ji-Peng, ZHANG Liang-Miao, YUE Bao-Hua, SHEN Shan-Shan, ZHANG Hao, LU Wen-Cong   

  1. Department of Chemistry, Shanghai University, Shanghai 200444, P. R. China
  • Received:2010-09-27 Revised:2010-11-15 Published:2011-03-03
  • Contact: LU Wen-Cong E-mail:wclu@shu.edu.cn
  • Supported by:

    The project was supported by the Shanghai Special Nanotechnology Project, China (0852nm00700) and Innovation Fund of Shanghai University, China (A.10-0101-09-023).

Abstract:

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.

Key words: Hydrothermal method, Spindle, MnO2, Mesoporous

MSC2000: 

  • O641