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Citation: YI Xi-Bin, WANG Xiu-Chun, ZHANG Jing, MA Jie, LIU Shuo, SHEN Xiao-Dong, CUI Sheng. Synthesis and Characterization of SiO2 Composite Aerogels Enhanced by the Self Growing Nano-Fibers[J]. Chinese Journal of Inorganic Chemistry, ;2014, 30(3): 603-608. doi: 10.11862/CJIC.2014.103 shu

Synthesis and Characterization of SiO2 Composite Aerogels Enhanced by the Self Growing Nano-Fibers

  • 1.

    1 Institute of the New Material Research, Shandong Academy of Sciences, Key Laboratory for Adhesion & Sealing Materials of Shandong Province, Jinan 250014, China;

  • Received Date: 11 September 2013
    Available Online: 30 October 2013

    Fund Project: 国家安全重大基础研究(No.613120020020202) (No.613120020020202)山东省优秀中青年科学家科研奖励基金计划(No.BS2013CL038) (No.BS2013CL038)山东省自然科学基金 (No.ZR2011BL021) (No.ZR2011BL021)材料化学工程国家重点实验室开放课题基金(No.KL12-07) (No.KL12-07)山东省科技发展计划(NO.2013YD02046) (NO.2013YD02046)山东省科学院 青年基金项目(NO.2013QN019)资助项目。 (NO.2013QN019)

  • The SiO2 composite aerogels enhanced by the self growing nano-fibers were prepared using sol-gel techniques and supercritical fluid drying, and converted to the high-strength composite aerogels after 1 200 ℃ high temperature heat treatment process. The structures and properties of composite aerogels were analyzed by means of SEM, TEM, XRD, TG, BET, and the compressive strengths and the true density were also measured. The experimental results showed that the as-synthesized ZrOX/SiO2 composite aerogels exhibited well-proportioned multihole network structure, and the Zirconium oxide nano-fibers alternated in the composite aerogels by the chemical bond. The mechanical strength and the insulation properties were improved evidently. The specific surface area, the compressive strengths and the true density of the ZrOX/SiO2 composite aerogels after 1 200 ℃ high temperature heat treatment process were 827.22 m2·g-1, 9.68 MPa, 0.23 g·cm-3, respectively.
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