《化学科学与工程前沿（英文）》
>> 2021年
第15卷
第4期
doi:
10.1007/s11705-020-2028-4
RESEARCH ARTICLE
Effect of sodium bicarbonate solution on methyltrimethoxysilane-derived silica aerogels dried at ambient pressure
. School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK.. Department of Physics, University of York, York YO10 5DD, UK
收稿日期：
2021-01-20
录用日期：
2021-03-03
发布日期：
2021-03-03
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摘要
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 and 423 m ∙g , respectively. The average pore diameter of silica aerogels is 23 nm as the pore specific volume is 1.11 cm ∙g . 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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