Electrochemically exfoliated graphene using 9-anthracene carboxylic acid for supercapacitor application

被引：84

作者：

Khanra, Partha ^{[1
]}

Kuila, Tapas ^{[1
]}

Bae, Seon Hyeong ^{[1
]}

Kim, Nam Hoon ^{[2
]}

Lee, Joong Hee ^{[1
,2
]}

机构：

[1] Chonbuk Natl Univ, Dept BIN Fus Technol, WCU Programme, Jeonju 561756, Jeonbuk, South Korea

[2] Chonbuk Natl Univ, Dept Hydrogen & Fuel Cell Engn, Jeonju 561756, Jeonbuk, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 46期

基金：

新加坡国家研究基金会;

关键词：

CARBON NANOTUBE; GREEN APPROACH; OXIDE; TRANSPARENT; ELECTRODES; NANOPARTICLES; POLYANILINE; CAPACITANCE; REDUCTION; COMPOSITE;

D O I：

10.1039/c2jm34838a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A green approach for the electrochemical exfoliation of graphite to graphene is reported. After the exfoliation of graphite, the 9-anthracene carboxylate ion (ACA), which was used as an electrolyte, was adsorbed on the surface of graphene through noncovalent interaction. X-ray diffraction analysis confirms the exfoliation of graphite to graphene. Atomic force microscopy and transmission electron microscopy analyses show the formation of single layer graphene. Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and Raman spectroscopy confirm the noncovalent attachment of ACA on the surface of graphene. The 9-anthracene carboxylic acid modified graphene (ACEG) shows good electrochemical performance with a high specific capacitance of 577 F g(-1) M H2SO4. The ACEG electrode shows 83.4% retention in specific capacitance after 1000 charge-discharge cycles. A high coulombic efficiency of 102% is also observed indicating its suitability as energy storage electrode materials.

引用

页码：24403 / 24410

页数：8

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