Formation of a silicate L3 phase with continuously adjustable pore sizes

K. M. McGrath, D. M. Dabbs, N. Yao, Ilhan A. Aksay, S. M. Gruner

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Abstract

The lyotropic L3 phase was used as a template to form nanoporous monolithic silicates with continuously adjustable pore sizes. The monolith was optically isotropic and transparent with a nonperiodic network. The pore size was adjusted by a change in the solvent volume fraction rather than by a change of the surfactant. Unlike other silicates, the bicontinuous pores were water-filled; removal of surfactant was not necessary to access the pores. Measured characteristic dimensions were from six to more than 35 nanometers. For a given solvent fraction, x-ray scattering indicated little variation of pore widths, in marked contrast to the polydisperse pores of aerogels.

Original languageEnglish (US)
Pages (from-to)552-556
Number of pages5
JournalScience
Volume277
Issue number5325
DOIs
StatePublished - Jul 25 1997

All Science Journal Classification (ASJC) codes

  • General

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    McGrath, K. M., Dabbs, D. M., Yao, N., Aksay, I. A., & Gruner, S. M. (1997). Formation of a silicate L3 phase with continuously adjustable pore sizes. Science, 277(5325), 552-556. https://doi.org/10.1126/science.277.5325.552