New insights into the resistance of silica aerogel to temperature up to 1200 °C

Ming Liu, Yong Kong, Bangqin Zhang, Xiaodong Shen

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Silica aerogel (SA) with high specific surface area (903 m2/g) and pore volume (6.81 cm3/g) was synthesized via base-catalyzed one-step sol–gel process. Thermal stability of SA under high temperature was estimated from structure evolution with temperature and time. The results demonstrate that the SA is thermally stabile at 1000 °C within 120 min (leaving specific surface area of 286 m2/g and pore volume of 1.46 cm3/g) and 1200 °C within 30 min (leaving specific surface area of 129 m2/g and pore volume of 0.59 cm3/g). The research provides new insights into the resistance of silica aerogels to high temperature, which is significant for application under harsh conditions.

Original languageEnglish
Article number137050
JournalMaterials Letters
Volume372
DOIs
StatePublished - 1 Oct 2024

Keywords

  • Microstructure
  • Nanoparticles
  • Sol-gel preparation
  • Thermal analysis

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