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题名: Synthesis of high-quality graphene with a pre-determined number of layers
作者: Z. S. Wu;  W. C. Ren;  L. B. Gao;  B. L. Liu;  C. B. Jiang;  H. M. Cheng
发表日期: 2009
关键词: functionalized graphene;  transparent conductors;  graphite oxide;  carbon-films;  solar-cells;  sheets;  electrodes;  nanosheets;  gas
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;
相关网址: <Go to ISI>://WOS:000262558300015
刊名: Carbon
内容类型: 期刊论文
ISSN号: 0008-6223
KOS主题词: Solar cells;  solar generators;  Sheets;  Electrodes;  Nanosheets;  Gases
KOS主题词(UF): Cells, Solar;  photovoltaic solar cells;  Schottky barrier solar cells;  solar batteries;  ELEMENTS ELECTRIQUES DE COLLECTEURS D ENERGIE SOLAI;  PHOTOVOLTAIC CELLS;  PHOTOVOLTAICS;  SONNENENERGIEZELLEN;  silicon solar cells;  wraparound contact solar cells;  solar converters;  solar power generation;  solar power sources;  thermophotovoltaic cells;  TPV cells;  薄板;  sheet;  board;  BLECH;  TOLE;  ELECTRODES (FRANCAIS);  ELEKTRODEN;  Gas;  GASE;  GAZ;  VAPORS;  气体;  Natural gas;  Gas, Natural;  Sour gas;  Coal-gas;  Illuminating gas;  Producer gas;  Coal gas;  GAZ DE CHARBON;  GAZ DE HOUILLE;  KOHLEGAS;  ERDGAS;  GAZ NATUREL;  Gas resources
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Recommended Citation:
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.

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