By the same authors

Effect of sodium bicarbonate solution on methyltrimethoxysilane-derived silica aerogels dried at ambient pressure

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JournalFrontiers of Chemical Science and Engineering
DateAccepted/In press - 17 Oct 2020
DateE-pub ahead of print (current) - 1 Mar 2021
Number of pages6
Pages (from-to)1-6
Early online date1/03/21
Original languageEnglish

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.

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© 2021, The Author(s).

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Copyright 2021 Elsevier B.V., All rights reserved.

    Research areas

  • ambient pressure drying, methyltrimethoxysilane, silica aerogel, sodium bicarbonate, solvent exchange, trimethylchlorosilane

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