Preferential and Reversible Fluorination of Monolayer Graphene

被引：72

作者：

Yang, Huaichao ^{[1
,2
]}

Chen, Minjiang ^{[1
,2
]}

Zhou, Haiqing ^{[1
,2
]}

Qiu, Caiyu ^{[1
,2
]}

Hu, Lijun ^{[1
,2
]}

Yu, Fang ^{[1
,2
]}

Chu, Weiguo ^{[1
]}

Sun, Shuqing ^{[1
]}

Sun, Lianfeng ^{[1
]}

机构：

[1] Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 34期

基金：

美国国家科学基金会;

关键词：

RAMAN-SPECTROSCOPY; CARBON NANOTUBES; LAYER GRAPHENE; SINGLE-LAYER; FUNCTIONALIZATION; HYDROGENATION; TRANSITION;

D O I：

10.1021/jp204573z

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：

In this work, we report the layer-dependent fluorination of n-layer graphenes by SF6 plasma treatment. For monolayer graphene, D, D', and D+G peaks of Raman spectroscopy can be clearly observed, whereas these peaks are absent for thicker n-layer graphenes (n >= 2) at the same experimental conditions. This indicates that monolayer graphene is much more susceptible to being fluorinated than thicker graphenes. These results can be well explained by larger corrugations of monolayer graphene than those of thicker graphenes. Meanwhile, the fluorination of n-layer graphenes is reversible after vacuum annealing. These studies provide useful information for exploiting the useful surface information of the fluorination of n-layer graphenes through plasma techniques.

引用

页码：16844 / 16848

页数：5

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