One-step synthesis of hydrophobic silica aerogel via in situ surface modification
Source abstract
Abstract
Abstract Using tetraethoxysilane (TEOS) and trimethylchlorosilane (TMCS) as co-precursors, we explore the one-step synthesis of hydrophobic silica aerogel via in situ surface modification at ambient pressure. Compared with hydrophilic feature of the products prepared by TEOS single precursor (without TMCS surface modification procedure), hydrophobic behavior of the aerogel obtained from TEOS and TMCS co-precursors was observed. Fourier Transform Infrared spectra (FTIR), Thermogravimetric analysis (TGA) and 29 Si NMR spectra were conducted to confirm the successful introduction of the hydrophobic group on the silica surface. In contrast to the multiple chemical modification approach, the procedure for one-step synthesis was simplified and the processing time was shortened from 2 weeks to 2 days.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aerogels and thermal insulation · Mesoporous Materials and Catalysis · Surface Modification and Superhydrophobicity
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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