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题名: Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition
作者: Z. P. Chen;  W. C. Ren;  L. B. Gao;  B. L. Liu;  S. F. Pei;  H. M. Cheng
发表日期: 2011
摘要: Integration of individual two-dimensional graphene sheets(1-3) into macroscopic structures is essential for the application of graphene. A series of graphene-based composites(4-6) and macroscopic structures(7-11) have been recently fabricated using chemically derived graphene sheets. However, these composites and structures suffer from poor electrical conductivity because of the low quality and/or high inter-sheet junction contact resistance of the chemically derived graphene sheets. Here we report the direct synthesis of three-dimensional foam-like graphene macrostructures, which we call graphene foams (GFs), by template-directed chemical vapour deposition. A GF consists of an interconnected flexible network of graphene as the fast transport channel of charge carriers for high electrical conductivity. Even with a GF loading as low as similar to 0.5 wt%, GF/poly(dimethyl siloxane) composites show a very high electrical conductivity of similar to 10 S cm(-1), which is similar to 6 orders of magnitude higher than chemically derived graphene-based composites(4). Using this unique network structure and the outstanding electrical and mechanical properties of GFs, as an example, we demonstrate the great potential of GF/poly(dimethyl siloxane) composites for flexible, foldable and stretchable conductors(12).
KOS主题词: Photography--Films;  Finite volume method;  Oxides;  Electrodes;  Graphite;  Sheets;  Matrix
刊名: Nature Materials
相关网址: <Go to ISI>://WOS:000290855100015
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Recommended Citation:
Z. P. Chen,W. C. Ren,L. B. Gao,et al. Three-dimensional Flexible And Conductive Interconnected Graphene Networks Grown By Chemical Vapour Deposition[J]. Nature Materials,2011,10(6):424-428.

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