Facile preparation of lightweight and robust carbon aerogel monoliths for high-temperature thermal insulation and oil-water separation
文献类型：期刊论文
| 作者 | Li, Jian1; Sun, Bohui1; Zuo, Linxuan2; Qu, Linfeng2; Luo, Rui1,3; Pang, Shengyang1; Hu, Chenglong1; Zhao, Rida1; Liang, Bin1; Cheng, Hui -Ming4 |
| 刊名 | CARBON
 |
| 出版日期 | 2024-01-31 |
| 卷号 | 218页码:10 |
| 关键词 | Carbon aerogels Fiber-reinforced composites Thermal insulation Ambient pressure drying Solvent exchange Organics absorption |
| ISSN号 | 0008-6223 |
| DOI | 10.1016/j.carbon.2023.118734 |
| 通讯作者 | Tang, Sufang(sftang@imr.ac.cn) |
| 英文摘要 | 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. |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:001135997500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | 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 |
| 源URL |  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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