Synthesis of monolithic nanostructured silicate family materials through the lyotropic liquid crystalline mesophases of non-ionic surfactant

S. A. El-Safty; T. Hanaoka

doi:10.1016/S0167-2991(03)80355-5

Synthesis of monolithic nanostructured silicate family materials through the lyotropic liquid crystalline mesophases of non-ionic surfactant

S. A. El-Safty^*, T. Hanaoka

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

A family of highly ordered mesoporous silica materials designated as (HOM) has been synthesized by using high concentration of non-ionic surfactant of Brij 56 as a template. The monolithic silicate molecular sieves with regular arrays and extend periodicity have been produced in acidic condition and at different temperatures 25-45 °C range. The liquid crystal mesophase properties affect in the monolithic mesostructured morphology. The three dimensional (3D) accessible mesoporous silicates of cubic Im3m (HOM-1), cubic Ia3d (HOM-5), primitive-centered cubic Pn3m (HOM-7), and 3-d hexagonal P6₃/mmc (HOM-3) have been generated at 35, 70, 69, and 85 wt% of the mass ratio of Brij 56/TMOS, respectively. In addition, a stable well-defmed ordered two dimensional hexagonal p6mm space group (HOM-2), lamellar L∞ (HOM-6), and solid phase (S) with a cubic Ia3d space group (HOM-4) have been prepared with mass ratio ca. 50, 75, and 70 wt % of Brij 56/TMOS at 35, 40, and 25 °C, respectively.

Original language	English
Pages (from-to)	173-176
Number of pages	4
Journal	Studies in Surface Science and Catalysis
Volume	146
DOIs	https://doi.org/10.1016/S0167-2991(03)80355-5
Publication status	Published - 2002
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Catalysis
Physical and Theoretical Chemistry
Materials Chemistry
Surfaces, Coatings and Films

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title = "Synthesis of monolithic nanostructured silicate family materials through the lyotropic liquid crystalline mesophases of non-ionic surfactant",

abstract = "A family of highly ordered mesoporous silica materials designated as (HOM) has been synthesized by using high concentration of non-ionic surfactant of Brij 56 as a template. The monolithic silicate molecular sieves with regular arrays and extend periodicity have been produced in acidic condition and at different temperatures 25-45 °C range. The liquid crystal mesophase properties affect in the monolithic mesostructured morphology. The three dimensional (3D) accessible mesoporous silicates of cubic Im3m (HOM-1), cubic Ia3d (HOM-5), primitive-centered cubic Pn3m (HOM-7), and 3-d hexagonal P63/mmc (HOM-3) have been generated at 35, 70, 69, and 85 wt% of the mass ratio of Brij 56/TMOS, respectively. In addition, a stable well-defmed ordered two dimensional hexagonal p6mm space group (HOM-2), lamellar L∞ (HOM-6), and solid phase (S) with a cubic Ia3d space group (HOM-4) have been prepared with mass ratio ca. 50, 75, and 70 wt % of Brij 56/TMOS at 35, 40, and 25 °C, respectively.",

author = "El-Safty, {S. A.} and T. Hanaoka",

year = "2002",

doi = "10.1016/S0167-2991(03)80355-5",

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AU - El-Safty, S. A.

AU - Hanaoka, T.

PY - 2002

Y1 - 2002

N2 - A family of highly ordered mesoporous silica materials designated as (HOM) has been synthesized by using high concentration of non-ionic surfactant of Brij 56 as a template. The monolithic silicate molecular sieves with regular arrays and extend periodicity have been produced in acidic condition and at different temperatures 25-45 °C range. The liquid crystal mesophase properties affect in the monolithic mesostructured morphology. The three dimensional (3D) accessible mesoporous silicates of cubic Im3m (HOM-1), cubic Ia3d (HOM-5), primitive-centered cubic Pn3m (HOM-7), and 3-d hexagonal P63/mmc (HOM-3) have been generated at 35, 70, 69, and 85 wt% of the mass ratio of Brij 56/TMOS, respectively. In addition, a stable well-defmed ordered two dimensional hexagonal p6mm space group (HOM-2), lamellar L∞ (HOM-6), and solid phase (S) with a cubic Ia3d space group (HOM-4) have been prepared with mass ratio ca. 50, 75, and 70 wt % of Brij 56/TMOS at 35, 40, and 25 °C, respectively.

AB - A family of highly ordered mesoporous silica materials designated as (HOM) has been synthesized by using high concentration of non-ionic surfactant of Brij 56 as a template. The monolithic silicate molecular sieves with regular arrays and extend periodicity have been produced in acidic condition and at different temperatures 25-45 °C range. The liquid crystal mesophase properties affect in the monolithic mesostructured morphology. The three dimensional (3D) accessible mesoporous silicates of cubic Im3m (HOM-1), cubic Ia3d (HOM-5), primitive-centered cubic Pn3m (HOM-7), and 3-d hexagonal P63/mmc (HOM-3) have been generated at 35, 70, 69, and 85 wt% of the mass ratio of Brij 56/TMOS, respectively. In addition, a stable well-defmed ordered two dimensional hexagonal p6mm space group (HOM-2), lamellar L∞ (HOM-6), and solid phase (S) with a cubic Ia3d space group (HOM-4) have been prepared with mass ratio ca. 50, 75, and 70 wt % of Brij 56/TMOS at 35, 40, and 25 °C, respectively.

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Synthesis of monolithic nanostructured silicate family materials through the lyotropic liquid crystalline mesophases of non-ionic surfactant

Abstract

ASJC Scopus subject areas

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