Synthesis and study on pore structure of SiO{sub 2}/Al{sub 2}O{sub 3} aerogel

Journal Article · Tue Oct 27 04:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4932707· OSTI ID:22492510

In the current paper, the mixed SiO{sub 2}/Al{sub 2}O{sub 3} aerogel was synthesized by sol-gel method with subcritical drying and characterized. Tetraethoxysilane was used as a precursor of silicon sol. The flower-shaped alumina suspension was peptized to produce alumina sol. The aerogel texture, morphology, and structure were determined using scanning electron microscopy, X-ray diffraction, low-temperature nitrogen adsorption, and high-resolution spectroscopy. A special attention was paid to the pore structure of aerogel, and aerogel framework was formed by the spherical agglomerates containing spherical particles of silicon oxide and alumina nanopetals. The pore size distribution was bimodal with peaks of 5.5 nm and 77 nm.

• OSTI ID: 22492510
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1683; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ADSORPTION
ALUMINIUM OXIDES
DISTRIBUTION
DRYING
MORPHOLOGY
NITROGEN
PARTICLES
PORE STRUCTURE
RESOLUTION
SCANNING ELECTRON MICROSCOPY
SILANES
SILICON
SILICON OXIDES
SOL-GEL PROCESS
SPECTROSCOPY
SPHERICAL CONFIGURATION
SUSPENSIONS
SYNTHESIS
TEMPERATURE RANGE 0065-0273 K
X-RAY DIFFRACTION