Preparation of ultra-low density SiO<sub>2</sub> aerogel

Yan Lin; Yang Fan; Luo Xuan; Zhang Lin

doi:10.11884/HPLPB202032.190447

Volume 32 Issue 3

Feb. 2020

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Yan Lin, Yang Fan, Luo Xuan, et al. Preparation of ultra-low density SiO2 aerogel[J]. High Power Laser and Particle Beams, 2020, 32: 032004. doi: 10.11884/HPLPB202032.190447

Citation:

Yan Lin, Yang Fan, Luo Xuan, et al. Preparation of ultra-low density SiO₂ aerogel[J]. High Power Laser and Particle Beams, 2020, 32: 032004. doi: 10.11884/HPLPB202032.190447

Yan Lin, Yang Fan, Luo Xuan, et al. Preparation of ultra-low density SiO2 aerogel[J]. High Power Laser and Particle Beams, 2020, 32: 032004. doi: 10.11884/HPLPB202032.190447

Citation:

Yan Lin, Yang Fan, Luo Xuan, et al. Preparation of ultra-low density SiO₂ aerogel[J]. High Power Laser and Particle Beams, 2020, 32: 032004. doi: 10.11884/HPLPB202032.190447

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Preparation of ultra-low density SiO₂ aerogel

doi: 10.11884/HPLPB202032.190447

Research Center of Laser Fusion, CAEP, Mianyang 621900, China

Received Date: 2019-12-04
Rev Recd Date: 2019-12-31
Publish Date: 2020-02-10

Abstract

Abstract

Ultra-low density SiO₂ aerogel as a classic three-dimensional network nano-porous material is widely used in many fields such as thermal insulation and adsorption. In this manuscript, tetramethoxysilane (TMOS) is used as the silicon source and an acid-base two-step method is used. Ultra-low density SiO₂ aerogels were prepared by ethanol supercritical drying technology, and a series of studies were performed on the aerogels using SEM\TEM\BET and other characterization methods. When the aerogel density was 0.6 mg/cm³, it had the best comprehensive properties. In addition, this aerogel has the advantages of ultra-low density, high specific surface area, good formability, and short preparation cycle. Thus, it is expected to play a significant role as a frozen target in laser inertial confinement fusion experiments.
- ICF,
- SiO₂,
- aerogel,
- ultra-low density

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References(13)

References

[1]	Kistler S S. Coherent expanded aerogels and jellies[J]. Nature, 1931, 127(3211): 741.
[2]	Du A, Zhou B, Zhang Z, et al. A special material or a new state of matter: A review and reconsideration of the aerogel[J]. Materials, 2013, 6(3): 941-968. doi: 10.3390/ma6030941
[3]	Ciriminna R, Fidalgo A, Pandarus V, et al. The sol-gel route to advanced silica-based materials and recent applications[J]. Chemical Reviews, 2013, 113(8): 6592-6620. doi: 10.1021/cr300399c
[4]	Thapliyal P C, Singh K, Kirti S. Aerogels as promising thermal insulating materials: An overview[J]. Journal of Materials, 2014: 1-10.
[5]	Jang K Y, Kim K, Upadhye R S. Study of sol-gel processing for fabrication of hollow silica-aerogel spheres[J]. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1990, 8(3): 1732-1735.
[6]	谭秀兰, 刘颖, 刘晓波, 等. ICF靶用泡沫铜的制备与表征[J]. 强激光与粒子束, 2008, 20(9):1452-1456. (Tan Xiulan, Liu Ying, Liu Xiaobo, et al. Preparation and characterization of foamed copper for ICF[J]. High Power Laser and Particle Beams, 2008, 20(9): 1452-1456
[7]	Pan Y, He S, Gong L, et al. Low thermal-conductivity and high thermal stable silica aerogel based on MTMS/water-glass co-precursor prepared by freeze drying[J]. Materials & Design, 2017, 113: 246-253.
[8]	高银, 张林, 李泽甫, 等. 低密度Cu掺杂SiO₂复合气凝胶的制备及表征[J]. 强激光与粒子束, 2014, 26:012003. (Gao Yin, Zhang Lin, Li Zefu, et al. Preparation and characterization of low-density Cu-doped SiO₂ composite aerogels[J]. High Power Laser and Particle Beams, 2014, 26: 012003 doi: 10.3788/HPLPB20142601.12003
[9]	徐超, 周斌, 吴广明, 等. 超低密度SiO₂气凝胶的制备及成型研究[J]. 强激光与粒子束, 2005, 17(11):1674-1678. (Xu Chao, Zhou Bin, Wu Guangming, et al. Preparation and molding of ultralow-density silica aerogels[J]. High Power Laser and Particle Beams, 2005, 17(11): 1674-1678
[10]	任洪波, 万小波, 张林, 等. 改性SiO₂气凝胶制备及其在ICF实验中的应用[J]. 强激光与粒子束, 2006, 18(8):1307-1310. (Ren Hongbo, Wan Xiaobo, Zhang Lin, et al. Preparation of modified silica aerogel and its appilication in inertial confinement fusion (ICF) experiment[J]. High Power Laser and Particle Beams, 2006, 18(8): 1307-1310
[11]	邓忠生, 魏建东, 王珏, 等. 低密度SiO₂气凝胶的结构与吸附特性研究[J]. 强激光与粒子束, 1999, 11(2):215-219. (Deng Zhongsheng, Wei Jiandong, Wang Jue, et al. Structure and vapor adsorption of low-density silica aerogel[J]. High Power Laser and Particle Beams, 1999, 11(2): 215-219
[12]	Primout M, Babonneau D, Jacquet L, et al. A new hybrid target concept for multi-keV X-ray sources[J]. High Energy Density Physics, 2013, 9(4): 750-760. doi: 10.1016/j.hedp.2013.09.002
[13]	Hazi A. Lightweight target generates bright, energetic X-rays[R]. Lawrence Livermore National Laboratory, 2006.