Synthesis and electrochemical properties of α-MnO2 microspheres

被引：69
|
作者：
Wang, Hong-En [1 ,2 ]
Qian, Dong [1 ]
机构：
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China
[2] Zhengzhou Res Inst Light Met, Zhengzhou Res Inst CHALCO, Zhengzhou 450041, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2008年 / 109卷 / 2-3期
关键词：
microporous materials; oxides; chemical synthesis; electrochemical properties;
D O I：
10.1016/j.matchemphys.2007.12.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the synthesis of alpha-MnO2 microspheres by a low-temperature hydrothermal method involving no templates or catalysts. The products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy-dispersive X-ray spectrum (EDX), transmission electron microscopy (TEM), Fourier transform infrared spectrum (FT-IR), and Brunauer-Emmett-Teller (BET). The results show that the as-synthesized products are mainly composed of large quantities of alpha-MnO2 microspheres having a sea-urchin shape and a few microspheres constructed of small nanorods. Electrochemical characterization indicates that the resulting alpha-MnO2 microspheres display promising discharge properties than the commercial electrolytic manganese dioxides (EMD) when used as cathodes in alkaline Zn-MnO2 batteries. (D 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：399 / 403
页数：5
相关论文
共 50 条
  • [31] Single-crystal α-MnO2 nanorods:: synthesis and electrochemical properties
    Wang, Hongen
    Lu, Zhouguang
    Qian, Dong
    Li, Yujie
    Zhang, Wei
    NANOTECHNOLOGY, 2007, 18 (11)
  • [32] Synthesis of α-MnO2 and its electrochemical performances
    Nurmaimaiti
    Xia, Xi
    Dianchi/Battery, 2000, 30 (04): : 150 - 152
  • [33] Synthesis and Electrochemical Characterization of Mesoporous MnO2
    Zhao, Jia Chang
    Wang, Jun
    Xu, Jing Li
    JOURNAL OF CHEMISTRY, 2015, 2015
  • [34] Electrochemical properties of graphene/MnO2 composite
    Xu, X. (liudao_zhongsheng@163.com), 1600, Chinese Ceramic Society (41):
  • [35] Synthesis and electrochemical characterization of amorphous MnO2 for electrochemical capacitor
    Bao, SJ
    He, BL
    Liang, YY
    Zhou, WJ
    Li, HL
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 397 (1-2): : 305 - 309
  • [36] One-step electrochemical synthesis of α-MnO2 and α•γ-MnO2 compounds for lithium batteries
    Hill, LI
    Portal, R
    Verbaere, A
    Guyomard, D
    ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (11) : A180 - A183
  • [37] Rapid synthesis of hollow structured MnO2 microspheres and their capacitance
    He, Xuexia
    Yang, Mingyang
    Ni, Ping
    Li, Yan
    Liu, Zong-Huai
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2010, 363 (1-3) : 64 - 70
  • [38] Facile synthesis of mesoporous MnO2 microspheres for high performance AC//MnO2 aqueous hybrid supercapacitors
    Li, Hehe
    Zhang, Xiangdong
    Ding, Rui
    Qi, Li
    Wang, Hongyu
    ELECTROCHIMICA ACTA, 2013, 108 : 497 - 505
  • [39] Nanostructured MnO2:: Hydrothermal synthesis and electrochemical properties as a supercapacitor electrode material
    Subramanian, V.
    Zhu, Hongwei
    Wei, Bingqing
    JOURNAL OF POWER SOURCES, 2006, 159 (01) : 361 - 364
  • [40] Synthesis and Electrochemical Properties of Layered Birnessite MnO2/Activated Carbon Nanocomposite
    M. A. Shaeri
    M. M. Bagheri Mohagheghi
    Journal of Electronic Materials, 2022, 51 : 2412 - 2432
12345