Thermal stability of graphite oxide

被引：394

作者：

Jeong, Hae-Kyung ^{[1
]}

Lee, Yun Pyo ^{[1
]}

Jin, Mei Hua ^{[1
]}

Kim, Eun Sung ^{[1
]}

Bae, Jung Jun ^{[1
]}

Lee, Young Hee ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sungkyunkwan Adv Inst Nanotechnol, Ctr Nanotubes & Nanostructured Composites, Phys Div BK21, Suwon 440746, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 470卷 / 4-6期

关键词：

REDUCED GRAPHENE OXIDE; TRANSPARENT; REDUCTION; FILMS;

D O I：

10.1016/j.cplett.2009.01.050

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：

We investigated the thermal stability of graphite oxides to heat treatment under ambient argon gas. Using X-ray diffraction, we observed the development of three phases in the annealed graphite oxides, instead of a mono-dispersed expanded interlayer distance as in the pristine graphite oxide. We found that the interlayer distances dropped off in a stepwise manner by approximately 0.1 nm in relation to the annealing time. The three phases are related to the stepwise decrease in the interlayer distances which is attributed to the removal of water molecules, hydrogen atoms from hydroxyl groups, and hydroxyl groups in the annealed graphite oxide. These changes were confirmed using Fourier-transformed infrared spectroscopy, thermogravimetric analysis, and elemental analysis. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：255 / 258

页数：4

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