TY - JOUR
T1 - Nanocomposite aerogels
T2 - The Si02 -Al2 O3 system
AU - Komarneni, Sridhar
AU - Roy, Rustum
AU - Selvaraj, Ulagaraj
AU - Malla, Prakash B.
AU - Breval, Else
N1 - Funding Information:
This research was supported by the United Force Office of Scientific Research under AFOSR-89-0446.
PY - 1993/12
Y1 - 1993/12
N2 - 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.
AB - 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.
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U2 - 10.1557/JMR.1993.3163
DO - 10.1557/JMR.1993.3163
M3 - Article
AN - SCOPUS:0027870682
VL - 8
SP - 3163
EP - 3167
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
IS - 12
ER -