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


Autoria(s): Kumar, Deepak; Banerjee, Anjan; Patil, Satish; Shukla, Ashok K
Data(s)

2015

Resumo

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.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/52847/1/Bul_Mat_Sci_38-6_1507_2015.pdf

Kumar, Deepak and Banerjee, Anjan and Patil, Satish and Shukla, Ashok K (2015) A 1 V supercapacitor device with nanostructured graphene oxide/polyaniline composite materials. In: BULLETIN OF MATERIALS SCIENCE, 38 (6). pp. 1507-1517.

Publicador

INDIAN ACAD SCIENCES

Relação

http://dx.doi.org/10.1007/s12034-015-0966-0

http://eprints.iisc.ernet.in/52847/

Palavras-Chave #Solid State & Structural Chemistry Unit
Tipo

Journal Article

PeerReviewed