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Preparation of porous SiO2 monoliths with high porosity and high temperature stability

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Abstract

Porous SiO2 powder was synthesized from Tetraethylorthosilicate (TEOS) using triblock copolymer P123 as template and 1,3,5-trimethylbenzene (TMB) as swelling agent. SiO2 monoliths were prepared from the synthesized SiO2 powders by gelcasting followed by sintering. Porous SiO2/Al2O3 monoliths were prepared from porous SiO2 powders coated with boehmite sol. XRD, SEM,TEM, N2 adsorption and Archimedes method were employed to characterize the phase, microstructure, porosity of the prepared powder and monoliths respectively. The thermal stability of the monoliths was studied by sintering the monoliths at 600–1000 °C. Both SiO2 monoliths and SiO2/Al2O3 monoliths with a porosity of ≥90% were obtained. The porosity of the monoliths decreases with sintering temperature increasing from 600 to 1000 °C. The porosity of the monolith sintered at 1000 °C is more than 80%. The evolution of the pores in the monoliths with sintering temperature was investigated.

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References

  1. Yu H., Su S.L., and Jackie Y.Y., Spherical siliceous mesocellular foam particles for high-speed size exclusion chromatography, Chem. Mater., 2007, 19(9): 2292.

    Article  Google Scholar 

  2. Sandra M., Marcial M., Adelina V., and Elies M., Highly dispersed nickel and palladium nanoparticle silica aerogels: sol-gel processing of tethered metal complexes and application as catalysts in the Mizoroki-Heck reaction, New J. Chem., 2006, 30(7): 1093.

    Article  Google Scholar 

  3. Baxter R.I., Rawlings R.D., Iwashita N., and Sawada Y., Effect of chemical vapor infiltration on erosion and thermal properties of porous carbon/carbon composite thermal insulation, Carbon, 2000, 38(3): 441.

    Article  CAS  Google Scholar 

  4. Rohsenow, and Warren M., Handbook of Heat Transfer, Science Press, Bei**g, 1992: 304.

    Google Scholar 

  5. Jochen, Fricke., Aerogel and their applications, Journal of Noncrystalline Solids, 1992, 147–148(7): 356.

    Google Scholar 

  6. Schlegel E., Haeussler K.S., and Seifat H., Micro-porosity and its use in highly efficient thermal insulating materials, CIF Ceramic Forum International, 1998, 76(8): 7.

    Google Scholar 

  7. Shen J., Zhou B., Wu G.M., Ni X.Y., and Wang Y., Preparation and investigation of nanoporous super thermal insulation: silica aerogels, The Chinese Journal of Process Engineering, 2002, 2(4): 341.

    CAS  Google Scholar 

  8. Lawrence W., Hrubesh. Aerogel application, Journal of Non-Crystalline Solids, 1998, 225(3): 335.

    Google Scholar 

  9. Einarsrud M., Einarsrud M.B., Nilsen E., Mortensen K., and Samseth J., Structure development of silica gels aged in TEOS, Journal of Non-Crystalline Solids, 1998, 223(1): 10.

    Article  Google Scholar 

  10. Duer K., Srendsen S., Monolithic silica aerogel in super insulating galazings, Solar Energy, 1998, 63(4): 259.

    Article  CAS  Google Scholar 

  11. Dong Z.J., Yan J.B., Tu H.B., Song Z.K., and Fan X.X., Studying on the preparation and application of silica aerogel composites for thermal insulation, New Chemical Materials, 2005, 33(3): 46.

    CAS  Google Scholar 

  12. Yang H.L., Ni W., Sun C.C., Hu Z.J., and Chen S.X., Development of Xonotlite-Silica aerogel nanoporous super insulation sheets, Aerospace Materials and Technology, 2006, 36(2): 18.

    Google Scholar 

  13. Zhang Z.H., Shen J., Ni Y.Y., Li Y., Wang B., Wu G.M., and Zhou B., Preparation and characterization of hydrophobic silica aerogels doped with fibers, Rare Metal Materials and Engineering, 2008, 37(2): 16.

    Google Scholar 

  14. Gao Q.F., Zhang C.R., Feng J., Wu W., and Feng J.Z., Preparation and thermal performance of alumina aerogel insulation composites, Journal of National University of Defense Technology, 2008, 30(4): 39.

    CAS  Google Scholar 

  15. Li L.C., Yalcin B., Nguyen B.N., Meador M.A.B., and Cakmak M., Flexible nanofiber-reinforced aerogel (xerogel) synthesis, manufacture, and characterization, Applied Materials and Interfaces, 2009, 1(11): 2491.

    Article  CAS  Google Scholar 

  16. Schmidt-Winkel P., Wayne W., Lukens J.R., Zhao D.Y., Yang P.D., Chmelka B.F., and Stucky G.D., Mesocellular siliceous foams with uniformly sized cells and windows, J. AM. Chem. Soc, 1999, 121(1): 254.

    Article  CAS  Google Scholar 

  17. Wu J.F., Xu X.H., and Zhang X., Study and preparation of aluminum sol from inorganic salt Al(NO3)3, Journal of Ceramics, 2007, 28(3): 155.

    Google Scholar 

  18. Li Y.M., Zhou J.E., Gu X.Y., and Ma G.H., Synthesis of nanocrystalline alumina power with sol-gel method, China Ceramics, 2002, 38(5): 4

    Google Scholar 

Download references

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Authors and Affiliations

  1. Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Bei**g University of Aeronautics & Astronautics, Bei**g, 100191, China

    Lijie Zhang, **ghua Gu & Yue Zhang

  2. Department of Physics, Fudan University, Shanghai, 200433, China

    Hongying Yao

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  1. Lijie Zhang
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  2. **ghua Gu
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  3. Hongying Yao
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  4. Yue Zhang
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Correspondence to **ghua Gu.

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Zhang, L., Gu, J., Yao, H. et al. Preparation of porous SiO2 monoliths with high porosity and high temperature stability. Rare Metals 30 (Suppl 1), 552–556 (2011). https://doi.org/10.1007/s12598-011-0345-z

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  • DOI: https://doi.org/10.1007/s12598-011-0345-z

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