Synergistic Effect of Aligned Graphene Nanosheets in Graphene Foam for High-Performance Thermally Conductive Composites

doi:10.1002/adma.201900199

CORC > 金属研究所 > 中国科学院金属研究所

	Synergistic Effect of Aligned Graphene Nanosheets in Graphene Foam for High-Performance Thermally Conductive Composites
	Wu, Zhaohong 1,2; Xu, Chuan 1; Ma, Chaoqun 1; Liu, Zhibo 1; Cheng, Hui-Ming 1,2,3; Ren, Wencai 1,2
刊名	ADVANCED MATERIALS
	2019-05-10
卷号	31 期号:19 页码:8
关键词	composites graphene foam graphene nanosheets synergistic effect thermal conductivity
ISSN号	0935-9648
DOI	10.1002/adma.201900199
通讯作者	Cheng, Hui-Ming(cheng@imr.ac.cn) ; Ren, Wencai(wcren@imr.ac.cn)
英文摘要	Graphene shows a great potential for high-performance thermally conductive composite applications because of its extremely high thermal conductivity. However, the graphene-based polymer composites reported so far only have a limited thermal conductivity, with the highest thermal conductivity enhancement (TCE) per 1 vol% graphene less than 900%. Here, a continuous network of graphene foam (GF), filled with aligned graphene nanosheets (GNs), is shown to be an ideal filler structure for thermally conductive composite materials. Compared to previous reports, a clear thermal percolation is observed at a low graphene loading fraction. The GNs/GF/natural rubber composite shows the highest TCE of 8100% (6.2 vol% graphene loading) ever reported at room temperature, which gives a record-high TCE per 1 vol% graphene of 1300%. Further analyses reveal a significant synergistic effect between the aligned GNs and 3D interconnected GF, which plays a key role in the formation of a thermal percolation network to remarkably improve the thermal conductivity of the composites. Additionally, the use of this composite for efficient heat dissipation of light-emitting diode (LED) lamps is demonstrated. These findings provide valuable guidance to design high-performance graphene-based thermally conductive materials, and open up the possibility for the use of graphene in high-power electronic devices.
资助项目	National Key R&D Program of China[2016YFA0200101] ; National Science Foundation of China[51325205] ; National Science Foundation of China[51290273] ; National Science Foundation of China[51521091] ; National Science Foundation of China[51861135201] ; Chinese Academy of Sciences[174321KYSB20160011] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB30000000] ; Program for Guangdong Introducing Innovative and Enterpreneurial Teams ; Development and Reform Commission of Shenzhen Municipality
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000469243400016
资助机构	National Key R&D Program of China ; National Science Foundation of China ; Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Program for Guangdong Introducing Innovative and Enterpreneurial Teams ; Development and Reform Commission of Shenzhen Municipality
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/133669]
专题	金属研究所_中国科学院金属研究所
通讯作者	Cheng, Hui-Ming; Ren, Wencai
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen Geim Graphene Ctr, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Wu, Zhaohong,Xu, Chuan,Ma, Chaoqun,et al. Synergistic Effect of Aligned Graphene Nanosheets in Graphene Foam for High-Performance Thermally Conductive Composites[J]. ADVANCED MATERIALS,2019,31(19):8.
APA	Wu, Zhaohong,Xu, Chuan,Ma, Chaoqun,Liu, Zhibo,Cheng, Hui-Ming,&Ren, Wencai.(2019).Synergistic Effect of Aligned Graphene Nanosheets in Graphene Foam for High-Performance Thermally Conductive Composites.ADVANCED MATERIALS,31(19),8.
MLA	Wu, Zhaohong,et al."Synergistic Effect of Aligned Graphene Nanosheets in Graphene Foam for High-Performance Thermally Conductive Composites".ADVANCED MATERIALS 31.19(2019):8.