Abstract
Aluminium-based dodecyl sulfate mesophases were synthesized by the homogeneous precipitation from a mixture of aluminium nitrate, sodium dodecyl sulfate, urea and water with or without five kinds of additional anions. The addition of monovalent Cl-, CH3COO- and HCOO- anions yielded a hexagonal mesophase, whereas F- anions induced a different mesophase. The crystallinities of these mesophases increased in the following order: NO3 - and Cl->CH3 COO->HCOO->F-, corresponding to the reverse order of affinity for Al3+. The resulting mesophases were also largely affected in morphology by the anion species added to form worm-like shaped particles for NO3 - and/or Cl- anions, and widely varying shapes of particles for the others. On calcination, these mesophases were transformed into α-alumina particles with macro pores having the specific surface area of ca. 20 m2ċg-1. On the other hand, the addition of divalent SO4 2- anions or the single use of aluminium sulfate led to a mesophase with a structural period as long as 6 nm, which was deorganized into a layered phase with an interlayer spacing of 1.4 nm.
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C.T. Kresge, M.E. Leonowicz, W.J. Roth, J.C. Vartuli, and J.S. Beck, Nature 359, 710 (1992).
T. Yanagisawa, T. Shimizu, K. Kuroda, and C. Kato, Bull. Chem. Soc. Jpn. 63, 988 (1990).
D.M. Antonelli and J.Y. Ying, Angew. Chem., Int. Ed. Engl. 34, 2014 (1995).
U. Ciesla, S. Schacht, G.D. Stucky, K.K. Unger, and F. Schüth, Angew. Chem., Int. Ed. Engl. 35, 541 (1996).
M. Yada, M. Machida, and T. Kijima, Chem. Commun. 769 (1996).
M. Yada, H. Hiyoshi, K. Ohe, M. Machida, and T. Kijima, Inorg. Chem. 36, 5565 (1997).
M. Yada, H. Kitamura, M. Machida, and T. Kijima, Langmuir 13, 5252 (1997).
H. Nagai, Ph.D. Thesis, Kyushu University (1993).
M. Yada, H. Hiyoshi, M. Machida, and T. Kijima, to be described else where.
L.G. Sillen and A.E. Martell, Stability Constants of Metal-Ion Complexes (The Chemical Society, London, 1964), Vol. 17.
L.G. Sillen and A.E. Martell, Stability Constants of Metal-Ion Complexes (The Chemical Society, London, 1971), Vol. 25.
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Yada, M., Hiyoshi, H., Machida, M. et al. Aluminium-Based Surfactant Mesophases Structurally and Morphologically Controlled by Anions. Journal of Porous Materials 5, 133–138 (1998). https://doi.org/10.1023/A:1009697421580
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DOI: https://doi.org/10.1023/A:1009697421580