Reduction of functionalized graphite oxides by trioctylphosphine in non-polar organic solvents

被引：110

作者：

Liu, Jincheng ^{[1
]}

Jeong, Huiseong ^{[1
]}

Liu, Jinzhang ^{[1
]}

Lee, Kyungmoon ^{[1
]}

Park, Ji-Yong ^{[1
]}

Ahn, Y. H. ^{[1
]}

Lee, Soonil ^{[1
]}

机构：

[1] Ajou Univ, Div Energy Syst Res, Suwon 443749, South Korea

来源：

CARBON | 2010年 / 48卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

GRAPHENE OXIDE; AQUEOUS DISPERSIONS; CHEMICAL-REDUCTION; SHEETS;

D O I：

10.1016/j.carbon.2010.03.002

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：

Graphene, functionalized with oleylamine (OA) and soluble in non-polar organic solvents, was produced on a large scale with a high yield by combining the Hummers process for graphite oxidation, an amine-coupling process to make OA-functionalized graphite oxide (OA-GO), and a novel reduction process using trioctylphosphine (TOP). TOP acts as both a reducing agent and an aggregation-prevention surfactant in the reduction of OA-GO in 1,2-dichlorobenzene (DCB). The reduction of OA-GO is confirmed by X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, and Raman spectroscopy. The exfoliation of GO, OA-GO, and OA-functionalized graphene (OA-G) is verified by atomic force microscopy. The conductivity of TOP-reduced OA-G, which is deduced from the current-voltage characteristics of a vacuum-filtered thin film, shows that the reduction of functionalized GO by TOP is as effective as the reduction of GO by hydrazine. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2282 / 2289

页数：8

共 58 条

[1] Electronic confinement and coherence in patterned epitaxial graphene [J].

Berger, Claire ;

Song, Zhimin ;

Li, Xuebin ;

Wu, Xiaosong ;

Brown, Nate ;

Naud, Cecile ;

Mayou, Didier ;

Li, Tianbo ;

Hass, Joanna ;

Marchenkov, Atexei N. ;

Conrad, Edward H. ;

First, Phillip N. ;

de Heer, Wait A. .

SCIENCE, 2006, 312 (5777) :1191-1196

[2] Graphite oxide:: Chemical reduction to graphite and surface modification with primary aliphatic amines and amino acids [J].

Bourlinos, AB ;

Gournis, D ;

Petridis, D ;

Szabó, T ;

Szeri, A ;

Dékány, I .

LANGMUIR, 2003, 19 (15) :6050-6055

[3]

Brodie B., 1860, ANN CHIM PHYS, V59, P466

[4] Functionalization of potassium graphite [J].

Chakraborty, Soma ;

Chattopadhyay, Jayanta ;

Guo, Wenhua ;

Billups, W. Edward .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (24) :4486-4488

[5] Graphite epoxide [J].

Chattopadhyay, Jayanta ;

Mukherjee, Arnab ;

Hamilton, Christopher E. ;

Kang, JungHo ;

Chakraborty, Soma ;

Guo, Wenhua ;

Kelly, Kevin F. ;

Barron, Andrew R. ;

Billups, W. Edward .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (16) :5414-+

[6] Efficient photodetection at IR wavelengths by incorporation of PbSe-carbon-nanotube conjugates in a polymeric nanocomposite [J].

Cho, Namchul ;

Choudhury, Kaushik Roy ;

Thapa, Ram B. ;

Sahoo, Yudhisthira ;

Ohulchanskyy, Tymish ;

Cartwright, Alexander N. ;

Lee, Kwang-Sup ;

Prasad, Paras N. .

ADVANCED MATERIALS, 2007, 19 (02) :232-+

[7] Substrate-free gas-phase synthesis of graphene sheets [J].

Dato, Albert ;

Radmilovic, Velimir ;

Lee, Zonghoon ;

Phillips, Jonathan ;

Frenklach, Michael .

NANO LETTERS, 2008, 8 (07) :2012-2016

[8] Covalent polymer functionalization of graphene nanosheets and mechanical properties of composites [J].

Fang, Ming ;

Wang, Kaigang ;

Lu, Hongbin ;

Yang, Yuliang ;

Nutt, Steven .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (38) :7098-7105

[9] Heteroepitaxial graphite on 6H-SiC(0001):: Interface formation through conduction-band electronic structure [J].

Forbeaux, I ;

Themlin, JM ;

Debever, JM .

PHYSICAL REVIEW B, 1998, 58 (24) :16396-16406

[10] Infrared spectroscopy of carbon materials:: A quantum chemical study of model compounds [J].

Fuente, E ;

Menéndez, JA ;

Díez, MA ;

Suárez, D ;

Montes-Morán, MA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (26) :6350-6359

← 1 2 3 4 5 6 →