Mesoporous aluminosilicate molecular sieves having "tubules-with

Details Mesoporous aluminosilicate molecular sieves having "tubules-with Mesoporous aluminosilicate molecular sieves having "tubules-with

1997-02-11

1999-03-02

Bell, Mark L.

Chemistry of inorganic compounds

Zeolite

Organic compound used to form zeolite

423705, 423716, C01B 3902, C01B 3904

Patent

active

058766901

ABSTRACT:
The present invention relates to a method for synthesizing mesoporous aluminosilicate and pure silica molecular sieves of new micro-tubular morphology. The wall of the microtubules contains coaxial cylindrical pores of nanometer size. The diameter of the hollow tubular is adjustable from 0.1 to 3 micrometer by varying the reaction conditions such as the surfactant/water ratio, the addition of salts or cosurfactants, the surfactants with different carbon chain length and the silicon/aluminum ratio.

REFERENCES:
patent: 5108725 (1992-04-01), Beck et al.
patent: 5112589 (1992-05-01), Johnson et al.
patent: 5695735 (1997-12-01), Benazzi et al.
Beck et al. "A New Family of Mesoporous Molecular Sieves Prepared with Liquid Crystal Templates," J. Am. Chem. Soc., vol. 114, p. 10834, 1992.
Lin et al., "Tubules-Within-a Tuble" Hierarchical Order of Mesoporous Molecular Sieves in MCM-41, Science 273:765-768, Aug. 9, 1996.

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