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Small angle neutron scattering study of the structure and formation of MCM-41 mesoporous molecular sieves

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Abstract

The nanoscale structure and synthesis mechanisms of the MCM-41 class of inorganic mesoporous materials have been investigated by small angle neutron scattering (SANS). SANS measurements with solvents imbibed in the pores to vary the scattering contrast demonstrate that the low angle diffraction peaks from these materials are entirely due to the pore structure and that the pores are fully accessible to both aqueous and organic solvents. Static and shear flow SANS measurements on the concentrated cationic surfactant and silicate precursor solutions typically used in the synthesis of the mesopore materials indicate that the existence of preassembled supramolecular arrays that mimic the final pore structure is not essential for the synthesis of these materials.

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Glinka, C.J., Nicol, M., Stucky, G.D. et al. Small angle neutron scattering study of the structure and formation of MCM-41 mesoporous molecular sieves. J Porous Mater 3, 93–98 (1996). https://doi.org/10.1007/BF01186038

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  • DOI: https://doi.org/10.1007/BF01186038

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