A 1 V supercapacitor device with nanostructured graphene oxide/polyaniline composite materials

Polyaniline and graphene oxide composite on activated carbon cum reduced graphene oxide-supported supercapacitor electrodes are fabricated and electrochemically characterized in a three-electrode cell assembly. Attractive supercapacitor performance, namely high-power capability and cycling stability...

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Bibliographic Details
Published in:Bulletin of materials science 2015-10, Vol.38 (6), p.1507-1517
Main Authors: KUMAR, DEEPAK, BANERJEE, ANJAN, PATIL, SATISH, SHUKLA, ASHOK K
Format: Article
Language:English
Subjects:
Acids
Activated carbon
Assembly
Capacitance
Chemistry and Materials Science
Comparative studies
Composite materials
Electrodes
Electrolytes
Engineering
Fourier transforms
Graphene
Graphite
Materials Science
Nanomaterials
Polyanilines
Polymers
Spectrum analysis
Sulfuric acid
Supercapacitors
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Summary:Polyaniline and graphene oxide composite on activated carbon cum reduced graphene oxide-supported supercapacitor electrodes are fabricated and electrochemically characterized in a three-electrode cell assembly. Attractive supercapacitor performance, namely high-power capability and cycling stability for graphene oxide/polyaniline composite, is observed owing to the layered and porous-polymeric-structured electrodes. Based on the materials characterization data in a three-electrode cell assembly, 1 V supercapacitor devices are developed and performance tested. A comparative study has also been conducted for polyaniline and graphene oxide/polyaniline composite-based 1 V supercapacitors for comprehending the synergic effect of graphene oxide and polyaniline. Graphene oxide/polyaniline composite-based capacitor that exhibits about 100 F g −1 specific capacitance with faradaic efficiency in excess of 90% has its energy and power density values of 14 Wh kg −1 and 72 kW kg −1 , respectively. Cycle-life data for over 1000 cycles reflect 10% capacitance degradation for graphene oxide/polyaniline composite supercapacitor.
ISSN:0250-4707
0973-7669
DOI:10.1007/s12034-015-0966-0