Trifluoromethylation of graphene

We demonstrate trifluoromethylation of graphene by copper-catalyzed free radical reaction. The covalent addition of CF3 to graphene, which changes the carbon atom hybridization from sp2 to sp3, and modifies graphene in a homogeneous and nondestructive manner, was verified with Raman spectroscopy, at...

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Main Authors:	Lin Zhou, Lushan Zhou, Xi Wang, Jingwen Yu, Mingmei Yang, Jianbo Wang, Hailin Peng, Zhongfan Liu
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2014-09-01
Series:	APL Materials
Online Access:	http://dx.doi.org/10.1063/1.4892849

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spelling	doaj-7720ffd6e2d84061a7d95494c6627b922020-11-25T00:18:45ZengAIP Publishing LLCAPL Materials2166-532X2014-09-0129092505092505-610.1063/1.4892849005492APMTrifluoromethylation of grapheneLin Zhou0Lushan Zhou1Xi Wang2Jingwen Yu3Mingmei Yang4Jianbo Wang5Hailin Peng6Zhongfan Liu7Center for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of ChinaCenter for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of ChinaCenter for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of ChinaCenter for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of ChinaCenter for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of ChinaCenter for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of ChinaCenter for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of ChinaCenter for Nanochemistry, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of ChinaWe demonstrate trifluoromethylation of graphene by copper-catalyzed free radical reaction. The covalent addition of CF3 to graphene, which changes the carbon atom hybridization from sp2 to sp3, and modifies graphene in a homogeneous and nondestructive manner, was verified with Raman spectroscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. X-ray photoelectron spectroscopy reveals that CF3 groups are grafted to the basal plane of graphene, with about 4 at. % CF3 coverage. After trifluoromethylation, the average resistance increases by nearly one order of magnitude, and an energy gap of about 98 meV appears. The noninvasive and mild reaction to synthesize trifluoromethylated graphene paves the way for graphene's applications in electronics and biomedical areas.http://dx.doi.org/10.1063/1.4892849
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Lin Zhou Lushan Zhou Xi Wang Jingwen Yu Mingmei Yang Jianbo Wang Hailin Peng Zhongfan Liu
spellingShingle	Lin Zhou Lushan Zhou Xi Wang Jingwen Yu Mingmei Yang Jianbo Wang Hailin Peng Zhongfan Liu Trifluoromethylation of graphene APL Materials
author_facet	Lin Zhou Lushan Zhou Xi Wang Jingwen Yu Mingmei Yang Jianbo Wang Hailin Peng Zhongfan Liu
author_sort	Lin Zhou
title	Trifluoromethylation of graphene
title_short	Trifluoromethylation of graphene
title_full	Trifluoromethylation of graphene
title_fullStr	Trifluoromethylation of graphene
title_full_unstemmed	Trifluoromethylation of graphene
title_sort	trifluoromethylation of graphene
publisher	AIP Publishing LLC
series	APL Materials
issn	2166-532X
publishDate	2014-09-01
description	We demonstrate trifluoromethylation of graphene by copper-catalyzed free radical reaction. The covalent addition of CF3 to graphene, which changes the carbon atom hybridization from sp2 to sp3, and modifies graphene in a homogeneous and nondestructive manner, was verified with Raman spectroscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. X-ray photoelectron spectroscopy reveals that CF3 groups are grafted to the basal plane of graphene, with about 4 at. % CF3 coverage. After trifluoromethylation, the average resistance increases by nearly one order of magnitude, and an energy gap of about 98 meV appears. The noninvasive and mild reaction to synthesize trifluoromethylated graphene paves the way for graphene's applications in electronics and biomedical areas.
url	http://dx.doi.org/10.1063/1.4892849
work_keys_str_mv	AT linzhou trifluoromethylationofgraphene AT lushanzhou trifluoromethylationofgraphene AT xiwang trifluoromethylationofgraphene AT jingwenyu trifluoromethylationofgraphene AT mingmeiyang trifluoromethylationofgraphene AT jianbowang trifluoromethylationofgraphene AT hailinpeng trifluoromethylationofgraphene AT zhongfanliu trifluoromethylationofgraphene
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Trifluoromethylation of graphene

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