Atomic Structure of Reduced Graphene Oxide

被引：997

作者：

Gomez-Navarro, Cristina ^{[1
,2
]}

Meyer, Jannik C. ^{[3
]}

Sundaram, Ravi S. ^{[1
]}

Chuvilin, Andrey ^{[3
]}

Kurasch, Simon ^{[3
]}

Burghard, Marko ^{[1
]}

Kern, Klaus ^{[1
,4
]}

Kaiser, Ute ^{[3
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] Univ Autonoma Madrid, Dept Fis Mat Condensada, E-28049 Madrid, Spain

[3] Univ Ulm, Electron Microscopy Grp Mat Sci, D-89143 Ulm, Germany

[4] Ecole Polytech Fed Lausanne, Inst Phys Mat Condensee, CH-1015 Lausanne, Switzerland

来源：

NANO LETTERS | 2010年 / 10卷 / 04期

关键词：

Graphene oxide; transmission electron microscopy; defects; GRAPHITE OXIDE; AQUEOUS DISPERSIONS; ROUTE;

D O I：

10.1021/nl9031617

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using high resolution transmission electron microscopy. we identify the specific atomic scale features in chemically derived graphene monolayers that originate from the oxidation-reduction treatment of graphene. The layers are found to comprise defect-free graphene areas with sizes of a few nanometers interspersed with defect areas dominated by clustered pentagons and heptagons. Interestingly, all carbon atoms in these defective areas are bonded to three neighbors maintaining a planar sp(2)-configuration, which makes them undetectable by spectroscopic techniques. Furthermore, we observe that they introduce significant in-plane distortions and strain in the surrounding lattice.

引用

页码：1144 / 1148

页数：5

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