A new family of mesosporous molecular sieves prepared wtih liquid crystal templates

Journal Article · Wed Dec 30 00:00:00 EST 1992 · Journal of the American Chemical Society; (United States)

DOI:https://doi.org/10.1021/ja00053a020· OSTI ID:6350316

Beck, J S; Vartuli, J C; Schmitt, K D; Olson, D H; Sheppard, E W; McCullen, S B; Higgins, J B; Schlenker, J L ^[1]; Roth, W J; Leonowicz, M E; Kresge, C T; Chu, C T.W. ^[2]

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1. Mobil Research and Development Corp., Princeton, NJ (United States)
2. Mobil Research and Development Corp., Paulsboro, NJ (United States)

The synthesis, characterization, and proposed mechanism of formation of a new family of silicate/aluminosilicate mesoporous molecular sieves designated as M41S is described. MCM-41, one member of this family, exhibits a hexagonal arrangement of uniform mesopores whose dimensions may be engineered in the range of [approximately]15 [Angstrom] to greater than 100 [Angstrom]. Other members of this family, including a material exhibiting cubic symmetry, have been synthesized. The larger pore M41S materials typically have surface areas above 700 m[sup 2]/g and hydrocarbon sorption capacities of 0.7 cc/g and greater. A templating mechanism (liquid crystal templating - LCT) in which surfactant liquid crystal structures serve as organic templates is proposed for the formation of these materials. In support of this templating mechanism, it was demonstrated that the structure and pore dimensions of MCM-41 materials are intimately linked to the properties of the surfactant, including surfactant chain length and solution chemistry. The presence of variable pore size MCM-41, cubic material, and other phases indicates that M41S is an extensive family of materials. 42 refs., 14 figs., 4 tabs.

• OSTI ID: 6350316
• Journal Information: Journal of the American Chemical Society; (United States), Vol. 114:27; ISSN 0002-7863
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MOLECULAR SIEVES
POROSITY
ALUMINIUM SILICATES
CHEMICAL PREPARATION
DIMENSIONS
LIQUID CRYSTALS
SILICATES
SORPTION
SURFACTANTS
SYMMETRY
ADSORBENTS
ALUMINIUM COMPOUNDS
CRYSTALS
FLUIDS
LIQUIDS
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SYNTHESIS
360602* - Other Materials- Structure & Phase Studies
360606 - Other Materials- Physical Properties- (1992-)