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Bulk crystal seeding on the generation of mesopores by organosilane surfactants in zeolite synthesis

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Title
Bulk crystal seeding on the generation of mesopores by organosilane surfactants in zeolite synthesis
Author(s)
Jaeheon Kim; Changbum Jo; Seungjun Lee; Ryong Ryoo
Publication Date
2014-08
Journal
JOURNAL OF MATERIALS CHEMISTRY A, v.2, no., pp.11905 - 11905
Publisher
ROYAL SOC CHEMISTRYROYAL SOC CHEMISTRY
Abstract
Zeolites of MOR, CHA, and FAU-X topologies were conventionally synthesized using Na+ or an organic structure-directing agent, except that organosilane surfactants were added as a mesopore-generating agent. The organosilanes were represented by the structural formula (CH3O)(3)Si-C3H6-N+(CH3)(2)CnH2n+1, where n was varied from 12 to 16 and 18. Each zeolite synthesis was seeded with a small amount of bulk zeolites of the same structure type. The synthesis result indicated that the bulk zeolite seeds disappeared completely from the zeolite products, indicating their disintegration into tiny fragments that were undetectable by high-resolution transmission electron microscopy. Nevertheless, the zeolite seeding caused a dramatic decrease in synthesis time. More importantly, crystal seeding, in comparison to unseeded synthesis, was highly effective in extending the organosilane-directed mesopore-generating strategy to a wide range of mesoporous and zeolite structures.
URI
https://pr.ibs.re.kr/handle/8788114/954
ISSN
2050-7488
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
No. 113_J. Mater. Chem. A._2_11905-11912.pdfDownload

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