Preparation and electrochemical properties of PANI/Ni/MWCNTs
The ternary core-shell composites(PANI/Ni/MWCNTs)with nickel nanotube/multi-wall carbon nanotubes(Ni/MWCNTs)as core and polyaniline as shell were successfully prepared in situ polymerization using acidized carbon nanotubes template and ammonium persulfate as oxidant,The electrochemical properties of the composites with different mass fractions of Ni/MWCNTs were analyzed by cyclic voltammetry,AC impedance and constant current charge-discharge methods.The specific capacitance(Cp-cv)of the prepared electrode material reached 737.13 F·g-1 at 0.001 V·s-1 by cyclic voltammetry,and specific capacitance of the assembled supercapacitor was 50.86 F·g-1 at 10 mA·cm-2.This approach is expected to provide an effective way to develop high-performance supercapacitiors.
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