Facile preparation of lightweight and robust carbon aerogel monoliths for high-temperature thermal insulation and oil-water separation

doi:10.1016/j.carbon.2023.118734

IMR OpenIR

	Facile preparation of lightweight and robust carbon aerogel monoliths for high-temperature thermal insulation and oil-water separation
	Li, Jian 1; Sun, Bohui 1; Zuo, Linxuan 2; Qu, Linfeng 2; Luo, Rui 1,3; Pang, Shengyang 1; Hu, Chenglong 1; Zhao, Rida 1; Liang, Bin 1; Cheng, Hui -Ming 4; Tang, Sufang 1
通讯作者	Tang, Sufang(sftang@imr.ac.cn)
	2024-01-31
发表期刊	CARBON
ISSN	0008-6223
卷号	218 页码:10
摘要	Lightweight carbon aerogels (CAs) are urgently required for thermal insulation and organics absorption. However, a facile preparation method of ambient pressure drying (APD) remains a challenge since the large surface tension causes severe shrinkage, collapse or even cracking of porous network. Herein, a series of lightweight, robust and large-sized CA monoliths (0.240-0.327 g/cm3) are prepared through sol-gel polymerization of resorcinol-formaldehyde (RF) followed by solvent exchange-free APD using cotton fibers as reinforcement precursor. The deliberate tailoring of synthesis parameters and the appropriate introduction of cotton fibers jointly bring the advantages of facilitating sol-gel of RF solution. reducing drying shrinkage of hydrogels, and improving compatibility of carbonization shrinkage between fibers and matrix. Consequently, for instance, the CA composite with a density of 0.283 g/cm3, have high compressive strength (3.66 MPa), low thermal conductivity (0.070 W/(m & sdot;K)), excellent hydrophobicity (water contact angle as high as 145 degrees), and high-volume organic absorption capability (74.8-95.7%). The facile preparation of CA composites through solvent exchange-free APD with monomer polymerization should be a promising approach to their further application in thermal insulation and oil-water separation.
关键词	Carbon aerogels Fiber-reinforced composites Thermal insulation Ambient pressure drying Solvent exchange Organics absorption
资助者	Defense Industrial Technology Development Program ; National Key R & D Program of China ; National Natural Science Foundations of China ; Research Fund of Youth Innovation Promotion Association of CAS, China ; Directional institutionalized scientific research platform relies on China Spallation Neutron Source of Chinese Academy of Sciences
DOI	10.1016/j.carbon.2023.118734
收录类别	SCI
语种	英语
资助项目	Defense Industrial Technology Development Program[JCKY2021130B007] ; National Key R & D Program of China[2021YFA1500804] ; National Natural Science Foundations of China[52022101] ; National Natural Science Foundations of China[U20A20242] ; National Natural Science Foundations of China[52188101] ; National Natural Science Foundations of China[52272075] ; Research Fund of Youth Innovation Promotion Association of CAS, China[2021190] ; Directional institutionalized scientific research platform relies on China Spallation Neutron Source of Chinese Academy of Sciences
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001135997500001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：13[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/321006/183442
专题	中国科学院金属研究所
通讯作者	Tang, Sufang
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Aviat Ind Corp China Ltd, Shenyang Aircraft Design & Res Inst, Shenyang 110035, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Jian,Sun, Bohui,Zuo, Linxuan,et al. Facile preparation of lightweight and robust carbon aerogel monoliths for high-temperature thermal insulation and oil-water separation[J]. CARBON,2024,218:10.
APA	Li, Jian.,Sun, Bohui.,Zuo, Linxuan.,Qu, Linfeng.,Luo, Rui.,...&Tang, Sufang.(2024).Facile preparation of lightweight and robust carbon aerogel monoliths for high-temperature thermal insulation and oil-water separation.CARBON,218,10.
MLA	Li, Jian,et al."Facile preparation of lightweight and robust carbon aerogel monoliths for high-temperature thermal insulation and oil-water separation".CARBON 218(2024):10.