Abstract
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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References
D.R. Ulrich, Chemical and Engineering News (January 1, 1990), pp. 28–40.
R. Roy, in Chemical Processing of Advanced Materials, edited by L. L. Hench and J. K. West (John Wiley and Sons, New York, 1992), pp. 1023–1033.
D. Hoffman, R. Roy, and S. Komarneni, J. Am. Ceram. Soc. 67, 468 (1984).
Y. Suwa, R. Roy, and S. Komarneni, J. Am. Ceram. Soc. 68, C238 (1985).
R. Roy, Y. Suwa, and S. Komarneni, Science of Ceramic Chemical Processing, edited by L.L. Hench and D.R. Ulrich (1986), Chap. 24, pp. 247–258.
Y. Suwa, S. Komarneni, and R. Roy, J. Mater. Sci. Lett. 5, 21 (1986).
R. Roy, S. Komarneni, and W. Yarbrough, Science of Ceramic Chemical Processing, edited by J. D. MacKenzie and D. R. Ulrich (1988), pp. 571–588.
A. Kazakos-Kijowski, S. Komarneni, and R. Roy, in Better Ceramics Through Chemistry III, edited by C. J. Brinker, D. E. Clark, and D.R. Ulrich (Mater. Res. Soc. Symp. Proc. 121, Pittsburgh, PA, 1988), pp. 245–250.
U. Selvaraj, C. L. Liu, S. Komarneni, and R. Roy, J. Am. Ceram. Soc. 74, 1378 (1991).
S. Komarneni, Proc. 1989 Int. Gas Research Conf. (Government Institutes Inc., Rockville, MD, 1990), pp. 922–928.
R. Roy and S. Komarneni, U.S. Patent No. 4828031 (1989).
S. Komarneni, A. K. Kijowski, and R. Roy, U.S. Patent No. 5 030592 (1991).
The Seventh Seminar on Frontier Technology–Nano Hybridization of Ceramics and Creation of New Functions, The Association for the Progress of New Chemistry, February 7–10, 1989, Oiso, Japan.
S. Yamanaka, Am. Ceram. Soc. Bull. 70, 1056 (1991).
K. Niihara and A. Nakahira, Proc. Japanese Ceram. Soc, 404–417 (1991).
R. Roy and E.F. Osborn, Am. Mineral. 39, 853 (1954).
D. M. Roy and R. Roy, Am. Mineral. 39, 957 (1954).
R. Roy, J. Am. Ceram. Soc. 39, 145 (1956).
H. D. Gesser and P. C. Goswami, Chem. Rev. 89, 765 (1989).
S.S. Kistler, Nature (London) 12, 741 (1931).
S.S. Kistler, U.S. Patent 2093 454 (1937).
S.S. Kistler, U.S. Patent 2188007 (1940).
M. Cantin, M. Casse, L. Koch, R. Jouan, P. Mestreau, D. Roussell, F. Bonnin, J. Moutel, and S. J. Teichner, Nucl. Instrum. Methods 118, 177 (1974).
M. Rubin and C. M. Lampert, Sol. Energy Mater. 1, 393 (1983).
J. D. LeMay, R. W. Hopper, L. W. Hrubesh, and R. W. Pekala, Mater. Res. Soc. Bull. XV, 19 (1990).
Aerogels, edited by J. Fricke (Springer-Verlag, New York), p. 206.
Proc. 2nd Int. Symp. on Aerogels, edited by R. Vachen, J. Phalippou, J. Pelous, and T. Woignier, J. de Physique, Collogne (1989).
“Aerogels”, edited by J. Fricke, J. Non. Cryst. Solids 145 (1992).
F. Blanchard, B. Pommier, J. P. Reymond, and S. J. Teichner, in Preparation of Catalysts III, edited by G. Poncelet, P. Grante, and P. A. Jacobs (Elsevier Science Publishers B.V., Amsterdam, 1983), p. 395.
A. Sayari, A. Ghorbel, G.M. Pajonk, and S.J. Teichner, Bull. Soc. Chim. Fr. I-2, I-7, I-16 (1981).
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Komarneni, S., Roy, R., Selvaraj, U. et al. Nanocomposite aerogels: The SiO2–Al2O3 system. Journal of Materials Research 8, 3163–3167 (1993). https://doi.org/10.1557/JMR.1993.3163
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DOI: https://doi.org/10.1557/JMR.1993.3163