Nanocomposite aerogels: The Si02 -Al2 O3 system

Sridhar Komarneni, Rustum Roy, Ulagaraj Selvaraj, Prakash B. Malla, Else Breval

Research output: Contribution to journalArticlepeer-review

51 Scopus citations


Monolithic nanocomposite aerogels of two aluminosilicate compositions have been prepared and characterized by different techniques. The results show that high surface area and mesoporosity can be preserved in the above nanocomposite aerogels by heating at 1000 °C, unlike the single component aerogels. The presence of alumina as a second phase prevented their densification which resulted in surface areas on the order of 500–600 m2 /g and mesopores of about 5–6 nm in diameter after heat treatment at 1000 °C. These novel nanocomposite aerogels are expected to find applications at high-temperatures in separations, insulation, catalysis, etc.

Original languageEnglish (US)
Pages (from-to)3163-3167
Number of pages5
JournalJournal of Materials Research
Issue number12
StatePublished - Dec 1993

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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