Abstract
High surface area carbon-silica xerogels and aerogels were prepared by adding various amounts of activated carbon particles during gelation of tetramethyoxysilane (TMOS). Surface areas and pore structure of the gels were determined by nitrogen and water adsorption and desorption measurements. Carbon increased the surface area of silica gel and the carbon-silica gel composites were found to be hydrophobic. The pore structure of xerogel composites was dominated by carbon whereas that of aerogel composites was apparently controlled by silica component.
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References
H.D. Gesser and P.C. Goswami, Chemical Reviews 89, 765 (1989).
S.J. Teichner, in Aerogels: Proceedings of the First International Symposium, edited by J. Fricke (Springer-Verlag, Berlin, 1986), p. 22.
S. Komarneni, R. Roy, U. Selvaraj, P.B. Malla, and E. Breval, Journal of Materials Research 8, 3163 (1993).
C. Liu, H. Zhang, S. Komarneni, and C. Pantano, Journal of Sol-Gel Science and Technology 1, 141 (1994).
J. Zarzycki and T. Woignier, in Aerogels: Proceedings of the First International Symposium, edited by J. Fricke (Springer-Verlag, Berlin, 1986), p. 42.
A.L. Cabrera, J.E. Zehner, C.G. Coe, T.R. Gaffney, T.S. Farris, and J.N. Armor, Carbon 31, 969 (1993).
A.A. Lizzio and M. Rostam-Abadi, Fuel Processing Technology 34, 97 (1993).
K. Miura and J. Hayashi, Carbon 29, 653 (1991).
M. J. Bojan, R. V. Slooten, and W. Steele, Separation Science and Technology 27, 1837 (1992).
P.N. Aukett, N. Quirke, S. Riddiford, and S.R. Tennison, Carbon 30, 913 (1992).
K.R. Matranga, A.L. Myers, and E.D. Glandt, Chemical Engineering Science 47, 1569 (1992).
R.W. Pekala, C.T. Alviso, F.M. Kong, and S.S. Hulsey, Journal of Noncrystalline Solids 145, 90 (1992).
M. Hosoya, G. Reynold, and M.S. Dresselhaus, Journal of Materials Research 8, 811 (1993).
A.W.P. Fung and Z.H. Wang, Journal of Materials Research 8, 1875 (1993).
F.M. Kong, J.D. LeMay, and S.S. Hulsey, Journal of Materials Research 8, 3100 (1993).
L.W. Hrubesh, W. Lawrence, and R.W. Pekala, Journal of Materials Research 9, 731 (1994).
Y. Mizushima and M. Hori, Journal of Materials Research 8, 2993 (1993).
C. Rutiser, S. Komarneni, and R. Roy, Materials Letters 19, 221 (1994).
X. Lu, P. Wang, M.C. Arduini-Schuster, J. Kuhn, D. Büttner, O. Nilsson, U. Heinemann, and J. Fricke, J. Non-Crystalline Solids 145, 207 (1992).
S. Yamanaka and S. Komarneni, U.S. Patent NO. 5, 058, 442 (1991).
S. Brunauer, R.S. Mikhail, and E.E. Boder, J. Colloid Interface Sic. 26, 45 (1968).
S.J. Gregg and K.S.W. Sing, Adsorption, Surface Area and Porosity (Academic Press, New York, 1982).
B.C. Lippens and J.H. de Boer, J. Cat. 4, 319 (1965).
M.M. Dubinin, in Chemistry and Physics of Carbon, edited by P.L. Walker Jr. (Arnold, London, 1956), Vol. 2, p. 51.
Z. Tan and S. Okano, J. Phys. Chem. 94, 6061 (1990).
C.J. Brinker and G.W. Scherer, Sol-Gel Science (Academic Press, New York, 1990).
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Also with the Department of Agronomy.