Anionic surfactants are used in greater volume than any other surfactants because of their highly potent detergency and low cost of manufacture. However, they have not been used as templates for synthesizing mesoporous silica. Here we show a templating route for preparing mesoporous silicas based on self-assembly of anionic surfactants and inorganic precursors. We use aminosilane or quaternized aminosilane as co-structure-directing agent (CSDA), which is different from previous pathways1,2,3,4,5,6,7,8,9,10. The alkoxysilane site of CSDA is co-condensed with inorganic precursors; the ammonium site of CSDA, attached to silicon atoms incorporated into the wall, electrostatically interacts with the anionic surfactants to produce well-ordered anionic-surfactant-templated mesoporous silicas (AMS). These have new structures with periodic modulations as well as two-dimensional hexagonal and lamellar phases. The periodic modulations may be caused by the coexistence of micelles that differ in size or curvature, possibly owing to local chirality. These mesoporous silicas provide a new family of mesoporous materials as well as shedding light on the structural behaviour of anionic surfactants.
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Kresge, C.T., Leonowicz, M.E., Roth, W.J., Vartuli, J.C. & Beck, J.S. Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism. Nature 359, 710–712 (1992).
Beck, J.S. et al. A new family of mesoporous molecular sieves prepared with liquid crystal template. J. Am. Chem. Soc. 114, 10834–10843 (1992).
Huo, Q. et al. Generalized synthesis of periodic surfactant/inorganic composite materials. Nature 368, 317–321 (1994).
Huo, Q. et al. Organization of organic molecules with inorganic molecular species into nanocomposite biphase arrays. Chem. Mater. 6, 1176–1191 (1994).
Tanev, P.T. & Pinnavaia, T.J. A neutral templating route to mesoporous molecular-sieves. Science 267, 865–867 (1995).
Bagshaw, S.A., Prouzet, E. & Pinnavaia, T.J. Templating of mesoporous molecular sieves by nonionic polyethylene oxide surfactants. Science 269, 1242–1244 (1995).
Zhao, D. et al. Nonionic triblock and star diblock copolymer and oligomeric surfactant syntheses of highly ordered, hydrothermally stable, mesoprous silica structures. J. Am. Chem. Soc. 120, 6024–6036 (1998).
Yu, C., Tian, B., Fan, J., Stucky, G.D. & Zhao, D. Nonionic block copolymer synthesis of large-pore cubic mesoporous single crystals by use of inorganic salts. J. Am. Chem. Soc. 124, 4556–4557 (2002).
Antonelli, D.M. & Ying, J.Y. Synthesis of a stable hexagonally packed mesoporous niobium oxide molecular sieve through a novel ligand-assisted templating mechanism. Angew. Chem. Int. Edn Engl. 35, 426–430 (1996).
Wong, M.S. & Ying, J.Y. Amphiphilic templating of mesostructured zirconium oxide. Chem. Mater. 10, 2067–2077 (1996).
Chen, F., Huang, L. & Li, Q. Synthesis of MCM-48 using mixed cationic-anionic surfactants as templates. Chem. Mater. 9, 2685–2686 (1997).
Lind, A., Spliethoff, B. & Lindén, M. Unusual, vesicle-like patterned, mesoscopically ordered silica. Chem. Mater. 15, 813–813 (2003).
Sakamoto, K. in Surfactant Science Series Vol. 101, Protein-Based Surfactants (eds Xia, J. & Nnanna, I.A.) Ch. 10, 261–280 (Dekker, New York, 2001).
Li, H.X., Camblor, M.A. & Davis, M.E. Synthesis of zeolites using organosilicon compounds as structure-directing agents. Microporous Mater. 3, 117–121 (1994).
Sakamoto, Y. et al. Direct imaging of the pores and cages of three-dimensional mesoporous materials. Nature 408, 449 (2000).
Yamamoto, K., Sakata, Y., Nohara, Y., Takahashi, Y. & Tatsumi, T. Organic–inorganic hybrid zeolites containing organic frameworks. Science 300, 470–472 (2003).
The authors are grateful to AminoScience Lab. Ajinomoto Co. for providing N-acyl-aminoacid and their salt surfactants. S.C. thanks the Japan Society for the Promotion of Science for a post doctoral fellowship. This work was supported by Core Research for Evolutional Science and Technology (CREST) of JST Corporation.
The authors declare no competing financial interests.
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Che, S., Garcia-Bennett, A., Yokoi, T. et al. A novel anionic surfactant templating route for synthesizing mesoporous silica with unique structure. Nature Mater 2, 801–805 (2003). https://doi.org/10.1038/nmat1022
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