Vitamin C Is an Ideal Substitute for Hydrazine in the Reduction of Graphene Oxide Suspensions

被引:1206
作者
Fernandez-Merino, M. J. [1 ]
Guardia, L. [1 ]
Paredes, J. I. [1 ]
Villar-Rodil, S. [1 ]
Solis-Fernandez, P. [1 ]
Martinez-Alonso, A. [1 ]
Tascon, J. M. D. [1 ]
机构
[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain
关键词
FILMS; DISPERSIONS; NANOSHEETS; CARBON;
D O I
10.1021/jp100603h
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
The preparation of solution-processable graphene from graphite oxide typically involves a hydrazine reduction step, but the use of such a reagent in the large-scale implementation of this approach is not desirable due to its high toxicity Here, we compare the deoxygenation efficiency of graphene oxide suspensions by different reductants (sodium borohydride, pyrogallol, and vitamin C. in addition to hydrazine). as well as by heating the suspensions under alkaline conditions. In almost all cases, the degree of reduction attainable and the subsequent restoration of relevant properties (e e electrical conductivity) lag significantly behind those achieved with hydrazine Only vitamin C is found to yield highly reduced suspensions in a way comparable to those provided by hydrazine Stable suspensions of vitamin C-reduced graphene oxide can be prepared not only in water but also in common organic solvents, such as N,N-dimethylformamide (DMF) or N-methyl-2-pyrrolidone (NMP). These results open the perspective of replacing hydrazine in the reduction of graphene oxide suspensions by an innocuous and safe reductant of similar efficacy, thus facilitating the use of graphene-based materials for large-scale applications.
引用
收藏
页码:6426 / 6432
页数:7
相关论文
共 38 条
[1]   Honeycomb Carbon: A Review of Graphene [J].
Allen, Matthew J. ;
Tung, Vincent C. ;
Kaner, Richard B. .
CHEMICAL REVIEWS, 2010, 110 (01) :132-145
[2]   Evaluation of solution-processed reduced graphene oxide films as transparent conductors [J].
Becerril, Hdctor A. ;
Mao, Jie ;
Liu, Zunfeng ;
Stoltenberg, Randall M. ;
Bao, Zhenan ;
Chen, Yongsheng .
ACS NANO, 2008, 2 (03) :463-470
[3]   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
[4]   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-+
[5]   Mechanically strong, electrically conductive, and biocompatible graphene paper [J].
Chen, Haiqun ;
Mueller, Marc B. ;
Gilmore, Kerry J. ;
Wallace, Gordon G. ;
Li, Dan .
ADVANCED MATERIALS, 2008, 20 (18) :3557-+
[6]  
Choucair M, 2009, NAT NANOTECHNOL, V4, P30, DOI [10.1038/nnano.2008.365, 10.1038/NNANO.2008.365]
[7]  
Davies M.B., 1991, Vitamin C: Its chemistry and biochemistry, DOI [10.1016/0891-5849(93)90516-W, DOI 10.1016/0891-5849(93)90516-W]
[8]  
Emtsev KV, 2009, NAT MATER, V8, P203, DOI [10.1038/nmat2382, 10.1038/NMAT2382]
[9]   Deoxygenation of Exfoliated Graphite Oxide under Alkaline Conditions: A Green Route to Graphene Preparation [J].
Fan, Xiaobin ;
Peng, Wenchao ;
Li, Yang ;
Li, Xianyu ;
Wang, Shulan ;
Zhang, Guoliang ;
Zhang, Fengbao .
ADVANCED MATERIALS, 2008, 20 (23) :4490-4493
[10]   The rise of graphene [J].
Geim, A. K. ;
Novoselov, K. S. .
NATURE MATERIALS, 2007, 6 (03) :183-191