Facile preparation of graphene induced from electron-beam irradiated graphite

被引：9
|
作者：
Park, Mira [1 ]
Shin, Hye Kyoung [1 ]
Kim, Byoung-Suhk [1 ]
Pant, Bishweshwar [2 ]
Barakat, Nasser A. M. [1 ,3 ]
Kim, Hak-Yong [1 ]
机构：
[1] Chonbuk Natl Univ, Dept Organ Mat & Fiber Engn, Jeonju Si 561756, Jeollabuk Do, South Korea
[2] Chonbuk Natl Univ, Dept Bionano Syst Engn, Jeonju Si 561756, Jeollabuk Do, South Korea
[3] Menia Univ, Dept Chem Engn, El Minia, Egypt
来源：
MATERIALS LETTERS | 2013年 / 105卷
基金：
新加坡国家研究基金会;
关键词：
Carbon materials; Electron beam irradiation; Graphite; Graphene; Microstructure; REDUCTION; OXIDE;
D O I：
10.1016/j.matlet.2013.04.027
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
SP2 bonded crystal lattices structure of graphite was affected by Electron Beam Irradiation (EBI). After EBI treatment at a dose of 50 kGy, graphite flakes were further treated with sulfuric acid (H2SO4), and were characterized by Transmission Electron Microscope (TEM), X-ray Diffraction (XRD) and Raman spectroscopy. It was found that the interlayer spacing of graphite was increased and disordered easily by EBI-H2SO4 treatments, confirming successful direct exfoliation of graphite flakes. EBI-H2SO4 treated graphene exhibited higher thermal stability (weight loss of about 7.0% at 833 degrees C) caused by the better graphite structures without defects than graphene oxide (GO) which was prepared from graphite by the modified Hummer's method. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：236 / 238
页数：3
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