Skip to main content
×
×
Home

Macroporous Materials with Uniform Pores by Emulsion Templating

  • A. Imhof (a1) and D. J. Pine (a1)
Abstract

A method was developed for the production of macroporous oxide materials by using the droplets of a nonaqueous emulsion as the templates around which material is deposited through a sol-gel process. Moreover, uniform pores arranged in regular arrays can be obtained by starting with an emulsion of uniform droplets. These droplets first self-assemble into a colloidal crystal after which gelation of the suspending sol-gel mixture captures the ordered structure. After drying and calcination pellets are obtained which contain ordered arrays of spherical pores left behind by the emulsion droplets. The method can be used to make uniform pores in the range from 0.05–5 micrometers in many different materials. We demonstrate the process for titania, silica, and zirconia.

Copyright
References
Hide All
1. Kresge, C.T., Leonowicz, M.E., Roth, W.J., Vartuli, J.C., and Beck, J.S., J. Am. Ceram. Soc. 114, 10834 (1992).
2. Huo, Q., Margolese, D.I., Ciesla, U., Feng, P., Gier, T.E., Sieger, P., Leon, R., Petroff, P.M., Schüth, F., and Stucky, G.D., Nature 368, 317 (1994).
3. Wu, M., Fujiu, T., and Messing, G.L., J. Non-Cryst. Solids 121, 407 (1990).
4. Downs, R.L., Ebner, M.A., and Milner, W.J. in Sol-Gel Technology for Thin Films. Fibers. Preforms. Electronics and Specialty Shapes, edited by Klein, L.C. (Noyes Publications, Park Ridge, NJ, 1988, pp. 330381.
5. Yablonovitch, E., J. Opt. Soc. Am. B 10, 283 (1993).
6.Photonic Band Gap Materials, edited by Soukoulis, C. (Kluwer, Dordrecht, 1996).
7. Bibette, J., J. Colloid Interface Sci. 147, 474 (1991).
8. See e.g. Pusey, P.N. and van Megen, W., Nature 320, 340 (1986).
9. Imhof, A. and Pine, D.J., J. Colloid Interface Sci. 192, 368 (1997).
10. Dinsmore, A.D., Yodh, A.G., and Pine, D.J., Nature 383, 239 (1996).
11. van Blaaderen, A., Ruel, R., and Wiltzius, P., Nature 385, 321 (1997).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed