Liu, Yujing, Han, Xiao, Kuerbanjiang, Balati orcid.org/0000-0001-6446-8209 et al. (2 more authors) (2021) Effect of sodium bicarbonate solution on methyltrimethoxysilane-derived silica aerogels dried at ambient pressure. Frontiers of Chemical Science and Engineering. pp. 954-959. ISSN 2095-0187
Abstract
Here we present an economical ambient pressure drying method of preparing monolithic silica aerogels from methyltrimethoxysilane precursor while using sodium bicarbonate solution as the exchanging solvent. We prepared silica aerogels with a density and a specific surface area of 0.053 g·cm−3 and 423 m2·g−1, respectively. The average pore diameter of silica aerogels is 23 nm as the pore specific volume is 1.11 cm3·g−1. Further, the contact angle between water droplet and the surface of silica aerogels in specific condition can be as high as 166°, which indicates a super-hydrophobic surface of aerogels.
Metadata
Authors/Creators: |
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Copyright, Publisher and Additional Information: | Publisher Copyright: © 2021, The Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights reserved. |
Keywords: | ambient pressure drying, methyltrimethoxysilane, silica aerogel, sodium bicarbonate, solvent exchange, trimethylchlorosilane |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > York Institute for Materials Research The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 18 Mar 2021 10:10 |
Last Modified: | 04 Feb 2024 01:11 |
Published Version: | https://doi.org/10.1007/s11705-020-2028-4 |
Status: | Published |
Refereed: | Yes |
Identification Number: | https://doi.org/10.1007/s11705-020-2028-4 |
Related URLs: |
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