Preparation and liquid-phase exfoliation of graphite fluoroxide towards graphene fluoroxide

被引：23

作者：

Yan, Shijing ^{[1
]}

Zhao, Jianqing ^{[1
,2
]}

Yuan, Yanchao ^{[1
,2
]}

Liu, Shumei ^{[1
,2
]}

Huang, Zhenxun ^{[1
]}

Chen, Zhigeng ^{[1
]}

Jiang, Dan ^{[3
]}

Zhao, Wenxia ^{[3
]}

机构：

[1] S China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] Key Lab Polymer Proc Engn, Minist Educ, Guangzhou 510640, Guangdong, Peoples R China

[3] Sun Yat Sen Univ, Instrumental Anal & Res Ctr, Guangzhou 510275, Guangdong, Peoples R China

来源：

RSC ADVANCES | 2013年 / 3卷 / 44期

基金：

中国国家自然科学基金;

关键词：

FLUORINATED GRAPHENE; CARBON NANOTUBES; RAMAN-SCATTERING; OXIDE; REDUCTION; NANORIBBONS; OXYFLUORIDE; FLUORIDE;

D O I：

10.1039/c3ra43578d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

As a new graphene derivative, graphene fluoroxide (GFO) has not been fully studied because of its complex preparation process. In this paper, two simple methods, a modified Hummers' method and an improved method, were adopted to oxidize unsaturated commercial graphite fluoride (GIF) to prepare graphite fluoroxide (GIFO), the precursor of GFO. GFO was finally obtained via liquid-phase ultrasonic exfoliation of GIFO in organic solvents. Multiple spectroscopic techniques were used to characterize GIFO and GFO. The test results indicate that both of the two methods can covalently bond oxygen functional groups to graphene fluoride (GF) sheets successfully, but the modified Hummers' method gives higher yield and oxidizability. The structure of the GFO sheet is confirmed as few-layer by its atomic force microscopy results and transmission electron microscopy images. UV-vis and fluorescence emission measurements suggest that introducing oxygen groups into GF sheets can change their optoelectronic properties. Based on this, GFO with tunable optoelectronic properties might be facilely obtained in large batches through oxidization and liquid-phase exfoliation of unsaturated GIF with different fluorine coverage.

引用

页码：21869 / 21876

页数：8

共 44 条

[21] Layer-by-layer assembly of ultrathin composite films from micron-sized graphite oxide sheets and polycations [J].

Kovtyukhova, NI ;

Ollivier, PJ ;

Martin, BR ;

Mallouk, TE ;

Chizhik, SA ;

Buzaneva, EV ;

Gorchinskiy, AD .

CHEMISTRY OF MATERIALS, 1999, 11 (03) :771-778

[22] sp2/sp3 Carbon Ratio in Graphite Oxide with Different Preparation Times [J].

Lee, D. W. ;

Seo, J. W. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (06) :2705-2708

[23] Improved Synthesis of Graphene Oxide [J].

Marcano, Daniela C. ;

Kosynkin, Dmitry V. ;

Berlin, Jacob M. ;

Sinitskii, Alexander ;

Sun, Zhengzong ;

Slesarev, Alexander ;

Alemany, Lawrence B. ;

Lu, Wei ;

Tour, James M. .

ACS NANO, 2010, 4 (08) :4806-4814

[24] Effect of the perfluoroalkyl groups on the preparation of carbon-based transparent and conductive thin films from silylated graphite oxides [J].

Matsuo, Yoshiaki ;

Iwasa, Kenshiro ;

Sugie, Yosohiro ;

Usami, Hisanao ;

Kawaguchi, Masayuki .

JOURNAL OF FLUORINE CHEMISTRY, 2011, 132 (10) :669-672

[25] Electrochemical synthesis and physical-chemical characterization of the low-oxidized graphite fluoroxide materials [J].

Mitkin, V. N. ;

Yudanov, N. F. ;

Galizky, A. A. .

JOURNAL OF FLUORINE CHEMISTRY, 2006, 127 (10) :1374-1382

[26]

Mitkin VN, 2003, J NEW MAT ELECTR SYS, V6, P103

[27]

Nakajima F., 1994, CARBON, V32, P469

[28]

Nazarov A. S., 1992, MAT SCI FORUM ISIC 6, V91-93, P10

[29]

Nikolenko Y. M., 2001, AM CARB SOC CARB 200, P133

[30] Simple method for the fluorinated functionalization of graphene oxide [J].

Pu, Linyu ;

Ma, Yongjun ;

Zhang, Wei ;

Hu, Hailong ;

Zhou, Yong ;

Wang, Qionglin ;

Pei, Chonghua .

RSC ADVANCES, 2013, 3 (12) :3881-3884

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