Study on preparation and charge-discharge properties of MnO 2/graphene/polythiophene composites
YANFu-feng
ZHANGYuan-chang
DONGXiao-dong
ZHANGZhi-hong
HELing-hao
Abstract：The MnO2/graphene/polythiophene composites were synthesized by in-situ hydrothermal oxida-tion-reduction method.The morphology and crystallinity of the composites were characterized with scanning electron microscope (SEM) and X-ray diffraction spectroscopy (XRD ).The electrochemical charge-discharge performance of the nanocomposites was tested by the battery test system.The results showed that globulg MnO2 was grown both on the surface of graphene and the gap of large particles of polythiophene in the nanocomposites.The specific capacity of synthesized MnO2/G/PTh composites was 300 mAh/g after the cycle of 20 times,the first charge and discharge efficiency of the nanocomposites with the ratio of 2010.67 was 46.5%,the discharge capacity was the highest.The charge-discharge stability and coulombic efficiency of the MnO2/graphene/polythiophene nanocomposites were better than that of pristine MnO2 .
Keywords：MnO2graphenepolythiophenenanocompositecharge-discharge property
Publication Date：2014-07-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1-5 )