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Preparation and characterization of high surface area ZrO2 aerogel modified by SiO2

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Abstract

Monolithic high surface area ZrO2 aerogel modified by SiO2 was successfully prepared by a sol–gel process followed by atmospheric pressure drying, using formamide as a drying control chemical additive and tetraethoxysilane solution for modification. The microstructure of the resultant core–shell ZrO2/SiO2 aerogel was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. Appropriate choice of formamide and tetraethoxysilane solution allowed the formation of the core–shell ZrO2/SiO2 aerogel with a BET surface area of 619 m2/g, a pore size of 8.2 nm and a bulk density of 0.202 g/cm3.

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Acknowledgments

This work is supported by the National Natural Science Foundation of China (51372225).

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The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People’s Republic of China

    Jing Ren, Xiaobo Cai, Hui Yang & Xingzhong Guo

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  1. Jing Ren
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  2. Xiaobo Cai
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  3. Hui Yang
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  4. Xingzhong Guo
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Correspondence to Xingzhong Guo.

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Ren, J., Cai, X., Yang, H. et al. Preparation and characterization of high surface area ZrO2 aerogel modified by SiO2 . J Porous Mater 22, 973–978 (2015). https://doi.org/10.1007/s10934-015-9971-3

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  • DOI: https://doi.org/10.1007/s10934-015-9971-3

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