Synthesis of high-quality graphene with a pre-determined number of layers

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	Synthesis of high-quality graphene with a pre-determined number of layers
	Z. S. Wu; W. C. Ren; L. B. Gao; B. L. Liu; C. B. Jiang; H. M. Cheng
	2009
发表期刊	Carbon
ISSN	0008-6223
卷号	47 期号:2 页码:493-499
摘要	A simple and effective strategy is proposed to vane the number of graphene layers by selecting suitable starting graphite, using a chemical exfoliation method. It is found that both the lateral size and the crystallinity of the starting graphite play important roles in the number of graphene layers obtained. Using artificial graphite, flake graphite powder, Kish graphite, and natural flake graphite as starting materials, similar to 80% of the final products are single-layer, single- and double-layer, double- and triple-layer, and few-layer (4-10 layers) graphene, respectively, while a mixture of few-layer (4-10 layers) and thick graphene (>10 layers) is obtained when highly-oriented pyrolytic graphite is used. The smaller the lateral size and the lower the crystallinity of the starting graphite, the fewer the number of graphene layers obtained. Moreover, the graphenes obtained are of high-quality with an electrical conductivity of similar to 1 x 10(3) S/cm. These findings open up the possibility for controlled production of high-quality graphene with a selected number of layers in a large quantity. (C) 2008 Elsevier Ltd. All rights reserved.
部门归属	[wu, zhong-shuai; ren, wencai; gao, libo; liu, bilu; jiang, chuanbin; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;ren, wc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;wcren@imr.ac.cn cheng@imr.ac.cn
关键词	Functionalized Graphene Transparent Conductors Graphite Oxide Carbon-films Solar-cells Sheets Electrodes Nanosheets Gas
URL	查看原文
WOS记录号	WOS:000262558300015
引用统计	被引频次：628[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32439
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. S. Wu,W. C. Ren,L. B. Gao,et al. Synthesis of high-quality graphene with a pre-determined number of layers[J]. Carbon,2009,47(2):493-499.
APA	Z. S. Wu,W. C. Ren,L. B. Gao,B. L. Liu,C. B. Jiang,&H. M. Cheng.(2009).Synthesis of high-quality graphene with a pre-determined number of layers.Carbon,47(2),493-499.
MLA	Z. S. Wu,et al."Synthesis of high-quality graphene with a pre-determined number of layers".Carbon 47.2(2009):493-499.