Preparation of non-covalently functionalized graphene using 9-anthracene carboxylic acid

被引：40

作者：

Bose, Saswata ^{[1
]}

Kuila, Tapas ^{[1
]}

Mishra, Ananta Kumar ^{[2
]}

Kim, Nam Hoon ^{[3
]}

Lee, Joong Hee ^{[1
,2
,3
]}

机构：

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

[2] Chonbuk Natl Univ, Dept Polymer & Nano Engn, Jeonju 561756, Jeonbuk, South Korea

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

来源：

NANOTECHNOLOGY | 2011年 / 22卷 / 40期

基金：

新加坡国家研究基金会;

关键词：

AQUEOUS DISPERSIONS; RAMAN-SPECTROSCOPY; SINGLE-LAYER; GRAPHITE; FILMS; OXIDE; TRANSPARENT; REDUCTION;

D O I：

10.1088/0957-4484/22/40/405603

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A simple way of achieving stable aqueous dispersion of graphene by non-covalent functionalization using 9-anthracene carboxylic acid has been successfully accomplished. Unlike in chemically reduced graphene, the C-sp(2) network of the graphene remains undistorted and therefore of superior quality. The non-covalent functionalization facilitates the exfoliation of graphite layers in a polarity controlled combination of media. A detailed exfoliation mechanism is proposed based on the controlled experiment and is supported by the data from UV-vis spectroscopy, transmission electron microscopy, and x-ray diffraction studies. Formation of monolayer graphene has been confirmed from Raman spectroscopy. The graphene based ultracapacitor shows a high value of specific capacitance (148 F g(-1)).

引用

页数：7

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