Simple routes from natural graphite to graphite foams: Preparation, structure and properties

doi:10.1016/j.carbon.2019.12.091

	Simple routes from natural graphite to graphite foams: Preparation, structure and properties
	Duan, Shengzhi 1; Wu, Xiaowen 1; Zeng, Keqing 1; Tao, Tianyi 2; Huang, Zhaohui 1; Fang, Minghao 1; Liu, Yangai 1; Min, Xin 1
刊名	CARBON
	2020-04-15
卷号	159 页码:527-541
关键词	Graphite foams Natural flake graphite Thermal diffusivity Sucrose NaCl template
ISSN号	0008-6223
DOI	10.1016/j.carbon.2019.12.091
英文摘要	Graphite foams were prepared using foaming method and template method with nature flake graphite powder as main raw materials, sucrose as a foaming agent or binder, as well sodium chloride as a template. The compositions, microstructure, thermal properties and mechanical performance of the fabricated graphite foams were investigated by X-ray fluorescence spectrometer, scanning electron microscope, laser thermal conductivity meter, and electronic universal testing machine, respectively. The results show that water in binder played an important role in forming process of graphite foams. Graphite foams with controllable pore structure can be obtained by template method. The porosity of graphite foams increased with increasing the concentration of templating agent. With a fixed concentration of the templating agent the thermal diffusivity of the foams deceased with increasing the concentration of binder. Moreover, the obtained graphite foams has a minimum density of 288 kg/m (3), a maximum porosity of 78% and a maximum thermal diffusivity of 7.14 x 10(-6) m(2)/s. Two binding models of graphite foams prepared using template method has been proposed in the first time. This work provided an optimized processing for graphite foams with simple preparation, low-cost recyclable raw materials, and a promising thermal management material for many applications. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	Fundamental Research Funds for the Central Universities, China[2652018288] ; National Natural Science Foundation of China[51872268]
WOS关键词	HIGH-THERMAL-CONDUCTIVITY ; SILICON-CARBIDE FOAMS ; CARBON FOAMS ; MOLTEN SUCROSE ; PORE STRUCTURE ; PITCH ; PRECURSOR ; HEAT ; FABRICATION ; BEHAVIOR
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000514195100056
资助机构	Fundamental Research Funds for the Central Universities, China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/39773]
专题	中国科学院过程工程研究所
通讯作者	Wu, Xiaowen; Min, Xin
作者单位	1.China Univ Geosci Beijing, Sch Mat Sci & Technol, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Natl Lab Mineral Mat, 29 Xueyuan Rd, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Duan, Shengzhi,Wu, Xiaowen,Zeng, Keqing,et al. Simple routes from natural graphite to graphite foams: Preparation, structure and properties[J]. CARBON,2020,159:527-541.
APA	Duan, Shengzhi.,Wu, Xiaowen.,Zeng, Keqing.,Tao, Tianyi.,Huang, Zhaohui.,...&Min, Xin.(2020).Simple routes from natural graphite to graphite foams: Preparation, structure and properties.CARBON,159,527-541.
MLA	Duan, Shengzhi,et al."Simple routes from natural graphite to graphite foams: Preparation, structure and properties".CARBON 159(2020):527-541.