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3723606 
Journal Article 
Synthesis of Amorphous MnO2/MWCNT Nanocomposites and Their Electrochemical Properties 
Hu, Jie; Shi, L; Men, Jie; Wang, L 
2014 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
26 
18 
6279-6284 
WOS:000343955700079 
MnO2/MWNT nanocomposites has been fabricated through a-simple route in a water-reflux condenser-system under different temperature. The as-prepared composites were characterized by scanning electron microscopy, transmission,electron microscopy, N.-ray diffraction and Brunauer-Emmett-Teller surface area analysis Capacitive properties of the synthesized composite electrodes were investigated via cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectrometry in a 0.5 M Na2SO4 electrolyte. Results show that this method can control the number and size of MnO2 particles loaded onto the surface of MWCNTs. Because excessive MnO2 enwrapping-carbon nanotubes would affect the overall-conductivity, the-composite prepared by lower temperature has better characteristics of super capacitor. 60-MnO2/MWCNT composite (51 wt % MnO2) displays the specific capacitance as high as 337 F/g at 1000 mA/g, which is higher than that of 100-MnO2/MWCNT (290 F/g) and exhibited an excellent cycling stability With no more than 6 % capacitance loss after 1000 cycles. 
MWCNTs; MnO2; Composite; Supercapacitor