The effect of the parent graphite on the structure of graphene oxide

被引：193

作者：

Botas, Cristina ^{[1
]}

Alvarez, Patricia ^{[1
]}

Blanco, Clara ^{[1
]}

Santamaria, Ricardo ^{[1
]}

Granda, Marcos ^{[1
]}

Ares, Pablo ^{[2
]}

Rodriguez-Reinoso, Francisco ^{[3
]}

Menendez, Rosa ^{[1
]}

机构：

[1] CSIC, Inst Nacl Carbon, INCAR, E-33080 Oviedo, Spain

[2] Nanotec Elect SL, Madrid 28760, Spain

[3] Univ Alicante, Dept Quim Inorgan, E-03080 Alicante, Spain

来源：

CARBON | 2012年 / 50卷 / 01期

关键词：

AQUEOUS DISPERSIONS; REDUCTION;

D O I：

10.1016/j.carbon.2011.08.045

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：

The effect of the parent graphite on the structure of graphene oxide (GO) is investigated using high purity graphites with a uniform crystallite size. Our results provide direct evidence of how the size of the graphite crystal affects the oxidation process and the functionality and sheet size of the resulting GO. The important role of the crystal boundaries in the graphite with smaller crystallites is confirmed by the smaller size of the GO sheets obtained and also by the presence of carboxylic groups, located at the edges of the sheets. However, functionalization in the graphite with larger crystals mainly occurs in the vicinity of basal plane defects, as evidenced by the larger number of epoxy groups. Thus, this study leads to a better understanding of the oxidation process of graphite and provides a way to produce GOs suitable for different applications. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：275 / 282

页数：8

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