Tuning graphene surface chemistry to prepare graphene/polypyrrole supercapacitors with improved performance

Linfei Lai; Liang Wang; Huanping Yang; Nanda Gopal Sahoo; Qian Xin Tam; Jilei Liu; Chee Kok Poh; San Hua Lim; Zexiang Shen; Jianyi Lin

doi:10.1016/j.nanoen.2012.05.012

Tuning graphene surface chemistry to prepare graphene/polypyrrole supercapacitors with improved performance

Linfei Lai, Liang Wang, Huanping Yang, Nanda Gopal Sahoo, Qian Xin Tam, Jilei Liu, Chee Kok Poh, San Hua Lim, Zexiang Shen, Jianyi Lin

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

Abstract

A series of functionalized graphene derived from graphite oxide (GO) and doped with polypyrrole (PPy) are prepared to systematically investigate the combined effect of surface functionalization and polymer hybridization on supercapacitor performance. Surface chemistry of graphene is found to be of significant importance to PPy growth and PPy/graphene electrochemical performance improvement. High specific capacitance has been achieved by N doped graphene/polypyrrole (NG-PPy) electrode with a value of 393.67Fg ^-1, which is larger than those of -NH ₂ modified graphene/PPy (225.33Fg ^-1), GO/PPy (165.25Fg ^-1), reduced GO/PPy electrodes (150.00Fg ^-1) under the same experimental conditions. Incorporation of N into the graphene network enhances electronic transfer efficiency and improved graphene surface wettability, therefore, largest synergistic effect is achieved on NG-PPy. Introduction of N doping to carbon material before the growth of conducting polymer is essential to prepare carbon/conducting polymer composites with high cycling stability and specific capacitance for supercapacitor application.

Original language	English
Pages (from-to)	723-731
Number of pages	9
Journal	Nano Energy
Volume	1
Issue number	5
DOIs	https://doi.org/10.1016/j.nanoen.2012.05.012
State	Published - Sep 2012
Externally published	Yes

Keywords

Conducting polymer
Graphene
Supercapacitor
Surface chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.nanoen.2012.05.012

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title = "Tuning graphene surface chemistry to prepare graphene/polypyrrole supercapacitors with improved performance",

abstract = "A series of functionalized graphene derived from graphite oxide (GO) and doped with polypyrrole (PPy) are prepared to systematically investigate the combined effect of surface functionalization and polymer hybridization on supercapacitor performance. Surface chemistry of graphene is found to be of significant importance to PPy growth and PPy/graphene electrochemical performance improvement. High specific capacitance has been achieved by N doped graphene/polypyrrole (NG-PPy) electrode with a value of 393.67Fg -1, which is larger than those of -NH 2 modified graphene/PPy (225.33Fg -1), GO/PPy (165.25Fg -1), reduced GO/PPy electrodes (150.00Fg -1) under the same experimental conditions. Incorporation of N into the graphene network enhances electronic transfer efficiency and improved graphene surface wettability, therefore, largest synergistic effect is achieved on NG-PPy. Introduction of N doping to carbon material before the growth of conducting polymer is essential to prepare carbon/conducting polymer composites with high cycling stability and specific capacitance for supercapacitor application.",

keywords = "Conducting polymer, Graphene, Supercapacitor, Surface chemistry",

author = "Linfei Lai and Liang Wang and Huanping Yang and Sahoo, {Nanda Gopal} and Tam, {Qian Xin} and Jilei Liu and Poh, {Chee Kok} and Lim, {San Hua} and Zexiang Shen and Jianyi Lin",

year = "2012",

month = sep,

doi = "10.1016/j.nanoen.2012.05.012",

language = "英语",

volume = "1",

pages = "723--731",

journal = "Nano Energy",

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TY - JOUR

T1 - Tuning graphene surface chemistry to prepare graphene/polypyrrole supercapacitors with improved performance

AU - Lai, Linfei

AU - Wang, Liang

AU - Yang, Huanping

AU - Sahoo, Nanda Gopal

AU - Tam, Qian Xin

AU - Liu, Jilei

AU - Poh, Chee Kok

AU - Lim, San Hua

AU - Shen, Zexiang

AU - Lin, Jianyi

PY - 2012/9

Y1 - 2012/9

N2 - A series of functionalized graphene derived from graphite oxide (GO) and doped with polypyrrole (PPy) are prepared to systematically investigate the combined effect of surface functionalization and polymer hybridization on supercapacitor performance. Surface chemistry of graphene is found to be of significant importance to PPy growth and PPy/graphene electrochemical performance improvement. High specific capacitance has been achieved by N doped graphene/polypyrrole (NG-PPy) electrode with a value of 393.67Fg -1, which is larger than those of -NH 2 modified graphene/PPy (225.33Fg -1), GO/PPy (165.25Fg -1), reduced GO/PPy electrodes (150.00Fg -1) under the same experimental conditions. Incorporation of N into the graphene network enhances electronic transfer efficiency and improved graphene surface wettability, therefore, largest synergistic effect is achieved on NG-PPy. Introduction of N doping to carbon material before the growth of conducting polymer is essential to prepare carbon/conducting polymer composites with high cycling stability and specific capacitance for supercapacitor application.

AB - A series of functionalized graphene derived from graphite oxide (GO) and doped with polypyrrole (PPy) are prepared to systematically investigate the combined effect of surface functionalization and polymer hybridization on supercapacitor performance. Surface chemistry of graphene is found to be of significant importance to PPy growth and PPy/graphene electrochemical performance improvement. High specific capacitance has been achieved by N doped graphene/polypyrrole (NG-PPy) electrode with a value of 393.67Fg -1, which is larger than those of -NH 2 modified graphene/PPy (225.33Fg -1), GO/PPy (165.25Fg -1), reduced GO/PPy electrodes (150.00Fg -1) under the same experimental conditions. Incorporation of N into the graphene network enhances electronic transfer efficiency and improved graphene surface wettability, therefore, largest synergistic effect is achieved on NG-PPy. Introduction of N doping to carbon material before the growth of conducting polymer is essential to prepare carbon/conducting polymer composites with high cycling stability and specific capacitance for supercapacitor application.

KW - Conducting polymer

KW - Graphene

KW - Supercapacitor

KW - Surface chemistry

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U2 - 10.1016/j.nanoen.2012.05.012

DO - 10.1016/j.nanoen.2012.05.012

M3 - 文章

AN - SCOPUS:84867101135

SN - 2211-2855

VL - 1

SP - 723

EP - 731

JO - Nano Energy

JF - Nano Energy

IS - 5

ER -

Tuning graphene surface chemistry to prepare graphene/polypyrrole supercapacitors with improved performance

Abstract

Keywords

UN SDGs

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