系统研究了一种在水热条件下制备三维石墨烯的新方法，建立了最佳的稳定制备工艺。该方法不需要添加化学交联剂，简单、可控性高。经X射线衍射、扫描电镜、视频接触角测量仪，拉曼光谱检测分析表明，制备的三维石墨烯样品具有密度低、孔隙率、机械强度及吸附率高的特点，与其它方法相比，此制备工艺具有较好的稳定性和重复性。制备的三维石墨烯有望应用在超级电容器、储氢材料、催化剂和环境保护等方面。
Three-dimensional graphene (3D)has attracted increasing attention due to its excellent performance such as light weight,high porosity,large specific surface area and high mechanical strength.In this paper,we report a simple and controllable method for the preparation of 3D architectures of graphene by the hydrothermal synthesis at 180 ℃.There were no chemical crosslinking agents are needed during the synthesis process.The as-prepared 3D graphene were characterized by use of X-ray diffraction,scanning electronic microscope,video con-tact angle measuring instrument and Raman spectroscope.The results show that the 3D graphene architectures have low densities,high porosity,high mechanical properties and high efficient absorption,compared with oth-er methods,this method has shown better stability and reproducibility.The prepared 3D graphene can be expec-ted to be used in the fields of supercapacitors,hydrogen storage,catalysts and environmental protection etc.
参考文献
| [1] | Geim AK;Novoselov KS .The rise of graphene[J].Nature materials,2007(3):183-191. |
| [2] | Tao, YS;Endo, M;Kaneko, K .Hydrophilicity-Controlled Carbon Aerogels with High Mesoporosity[J].Journal of the American Chemical Society,2009(3):904-905. |
| [3] | Wufeng Chen;Lifeng Yan .In situ self-assembly of mild chemical reduction graphene for three-dimensional architectures[J].Nanoscale,2011(8):3132-3137. |
| [4] | Hua Bai;Chun Li;Gaoquan Shi .Functional Composite Materials Based on Chemically Converted Graphene[J].Advanced Materials,2011(9):1089-1115. |
| [5] | Marcus A. Worsley;Peter J. Pauzauskie;Sergei O. Kucheyev .Properties of single-walled carbon nanotube-based aerogels as a function of nanotube loading[J].Acta materialia,2009(17):5131-5136. |
| [6] | Huang, X.;Yin, Z.;Wu, S.;Qi, X.;He, Q.;Zhang, Q.;Yan, Q.;Boey, F.;Zhang, H. .Graphene-based materials: Synthesis, characterization, properties, and applications[J].Small,2011(14):1876-1902. |
| [7] | Trancik JE;Barton SC;Hone J .Transparent and catalytic carbon nanotube films[J].Nano letters,2008(4):982-987. |
| [8] | Mark A. Shannon;Paul W. Bohn;Menachem Elimelech;John G. Georgiadis;Benito J. Marinas;Anne M. Mayes .Science and technology for water purification in the coming decades[J].Nature,2008(7185):301-310. |
| [9] | Gui X C;Wei J Q;Wang K L et al.In situ self-assembly of mild chemical reduction graphene for three-dimensional architectures[J].Adv Mater,2010,22:617-621. |
| [10] | Marcus A. Worsley;Peter J. Pauzauskie;Sergei O. Kucheyev .Properties of single-walled carbon nanotube-based aerogels as a function of nanotube loading[J].Acta materialia,2009(17):5131-5136. |
| [11] | Sun Hwa Lee;Ji Sun Park;Bo Kyung Lim;Chan Bin Mo;Won Jun Lee;Ju Min Lee;Soon Hyung Hong;Sang Ouk Kim .Highly entangled carbon nanotube scaffolds by self-organized aqueous droplets[J].Soft matter,2009(12):2343-2346. |
| [12] | Gawryla, MD;Liu, L;Grunlan, JC;Schiraldi, DA .pH Tailoring Electrical and Mechanical Behavior of Polymer-Clay-Nanotube Aerogels[J].Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation,2009(19):1669-1673. |
| [13] | Bryning, MB;Milkie, DE;Islam, MF;Hough, LA;Kikkawa, JM;Yodh, AG .Carbon nanotube aerogels[J].Advanced Materials,2007(5):661-664. |
| [14] | Bin Y;Xin Bo H .The effect of preparation process on the mechanical properties of the composites of Cf/SiC[J].Materials Engineering,2004,8:011. |
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