Supercapacitors based sheet-structure polyprrole/grpahene composites

Zhu Jianbo; Xu Youlong; Wang Jie

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Supercapacitors based sheet-structure polyprrole/grpahene composites

Zhu Jianbo,Xu Youlong *,Wang Jie

Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, Xi'an Jiaotong University

*Correspondence author

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Funding: the Specialized Research Fund for the Doctoral Program of Higher Education of China （No.Grant No. 20110201130005）, Program for New Century Excellent Talents in University （No.NCET-11-0433）

Opened online:11 December 2015

Accepted by: none

Citation: Zhu Jianbo,Xu Youlong,Wang Jie.Supercapacitors based sheet-structure polyprrole/grpahene composites[OL]. [11 December 2015] http://en.paper.edu.cn/en_releasepaper/content/4669401

Nano-sheet polypyrrole/reduced graphene oxide (PPy/RGO) composites were prepared by in situ polymerization of the pyrrole monomer in the RGO uniform suspension. A homogeneous dispersion of individual graphene sheets coated by the PPy matrix was achieved. PPy and RGO formed a nano-sheets structure composite. Such nano-sheeets structure and the observed high electrical conductivities afforded high specific capacitance, good rate performance and cyclic stability. A high specific capacitance of 255.7 F g-1 was achieved for PPy/RGO-10. Furthermore, The PPy/RGO-10 electrodes have good cycle stability and show less than 8.5% specific capacitance decay at a charge/discharge current density of 2 A g-1 within an electrochemical window of 0.9 V after 2000 cycles.

Keywords:Polyprrole; reduced graphene oxide; Supercapacitor

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