Page 289 - Book Hosokawa Nanoparticle Technology Handbook
P. 289
FUNDAMENTALS CH. 4 CONTROL OF NANOSTRUCTURE OF MATERIALS
both the mesoscale and molecular scale even when
this material is boiled in water for 8 h.
Similar molecular-scale periodicity has been
observed with biphenyl (–C H -C H –) [16], 1,3-
4
6
4
6
benzene [23], and toluene. Although a highly
ordered mesostructure is formed with ethane and
methane, which undergo weak interaction, a periodic
structure does not develop on the pore walls. This
indicates that strong interaction with the organic
silane molecules plays a crucial role in the formation
of the molecular-scale periodicity. A benzene-silica
material with a lamellar mesostructure and a molec-
ular-scale periodicity was also synthesized by con-
trolling the synthesis conditions [24]. Crystallization
of amorphous pore walls of mesoporous benzene-
silica has also been performed as a post-treatment
process [25].
Silanol (Si-OH) or organic groups on the pore wall
can be readily modified, and up to now, this method
has been applied to introduce sulfone groups (-SO H)
3
and to solid acid catalysts [26–28].
References
[1] K. Kuroda: Ceramics, 36, 902–905 (2001).
[2] S. Inagaki: J. Soc. Powder Technol., Jpn., 39, 518–526
Figure 4.6.20 (2002).
TEM image of crystal-like mesoporous phenylene-silica. [3] J.Y. Ying, C.P. Mehnet and M.S. Wong: Angew. Chem.
Int. Ed., 38, 56–77 (1999).
[4] A. Stein, B.J. Meldw and R.C. Schroden: Adv. Mater.,
12, 1403–1419 (2000).
[5] A. Sayari, S. Hamoudi: Chem. Mater., 12, 3151–3168
(2001).
[6] S. Inagaki, S. Guan, Y. Fukushima, T. Ohsuna and O.
Terasaki: J. Am. Chem. Soc., 121, 9611–9614 (1999).
[7] S. Guan, S. Inagaki, T. Ohsuna and O. Terasaki: J. Am.
Chem. Soc., 122, 5660–5661 (2000).
[8] S. Guan, S. Inagaki, T. Ohsuna and O. Terasaki:
Microporous Mesoporous Mater., 44–45, 165–172
(2001).
[9] M.P. Kapoor, S. Inagaki: Chem. Mater., 14,
3509–3514 (2002).
[10] B.J. Melde, B.T. Holland, C.F. Blanford and A. Stein:
Chem. Mater., 11, 3302–3308 (1999).
[11] T. Aefa, M.J. MacLachlan, N. Coombs and G.A. Ozin:
Nature, 402, 867–871 (1999).
[12] K. Nakajima, D.L. Lu, J.N. Kondo, I. Tomita,
S. Inagaki, M. Hara, S. Hayashi, K. Domen: Chem.
Lett., 32, 950–951 (2003).
[13] C.Y. Ishii, T. Asefa, N. Coombs, M.J. MacLachlan and
G.A. Ozin: Chem. Commun., 2539–2540 (1999).
[14] S. Inagaki, S. Guan, T. Ohsuan and O. Terasaki:
Figure 4.6.21 Nature, 416, 304–307 (2002).
Simulation model of crystal-like mesoporous [15] Y. Goto, S. Inagaki: Chem. Commun.[J], 2410–2411
phenylene-silica. (2002).
264