Novel hybrid nanocomposite based on poly(3,4-ethylenedioxythiophene)/multiwalled carbon nanotubes/graphene as electrode material for supercapacitor

•A novel b-PEDOT/MWCNTs/rGO hybrid nanocomposite was prepared.•The nanocomposite as electrode material for supercapacitor was studied.•The nanocomposite could exhibit a specific capacitance of 225 F g−1.•The synergistic effects of rGO, PEDOT and MWCNTs in the nanocomposite were studied. The hybrid n...

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Bibliographic Details
Published in:Synthetic metals 2014-03, Vol.189, p.69-76
Main Authors: Chen, Jun, Jia, Chunyang, Wan, Zhongquan
Format: Article
Language:English
Subjects:
Applied sciences
Capacitors. Resistors. Filters
Composites
Electrical engineering. Electrical power engineering
Electrode material
Exact sciences and technology
Forms of application and semi-finished materials
Graphene
Multiwalled carbon nanotubes
Nanocomposite
Poly(3,4-ethylenedioxythiophene)
Polymer industry, paints, wood
Supercapacitor
Technology of polymers
Various equipment and components
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Summary:•A novel b-PEDOT/MWCNTs/rGO hybrid nanocomposite was prepared.•The nanocomposite as electrode material for supercapacitor was studied.•The nanocomposite could exhibit a specific capacitance of 225 F g−1.•The synergistic effects of rGO, PEDOT and MWCNTs in the nanocomposite were studied. The hybrid nanocomposite based on poly(3,4-ethylenedioxythiophene)/multiwalled carbon nanotubes/graphene was prepared by reducing the graphene oxide with hydrazine in the presence of multiwalled carbon nanotubes (MWCNTs) and the anchored poly(3,4-ethylenedioxythiophene) hollow spheres (b-PEDOT). The transmission electron microscope (TEM) images of b-PEDOT/MWCNTs/rGO nanocomposite reveal that the b-PEDOT and MWCNTs were sandwiched between layers of graphene sheets. The b-PEDOT nanoparticles act as spacers to create gaps between neighboring graphene sheets, resulting in a higher surface area compared to pure graphene. Furthermore, it shows a significant pseudocapacitance energy storage mechanism during the charge/discharge process. And the MWCNTs improve electric conductivity of the nanocomposite and contribute to a low equivalent series resistance (ESR). Utilizing this composite material, a specific capacitance of 225 F g−1 at a current density of 0.1 A g−1 has been achieved.
ISSN:0379-6779
1879-3290
DOI:10.1016/j.synthmet.2014.01.001