Surfactant-Directed Zeolite Nanosheets: A High-Performance Catalyst for Gas-Phase Beckmann Rearrangement

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Silica nanosheets with an MFI zeolite topology having a thickness of 2 nm were synthesized following a synthetic route using [C(16)H(33)-N(+)(CH(3))(2)-C(6)H(12)-N(+)(CH(3))(2)-C(6)H(13)](OH(-))(2) as a zeolite structure-directing agent. The surfactant-directed zeolite nanosheets exhibited a remarkably long catalytic lifetime and high selectivity for the production of epsilon-caprolactam via gas-phase Beckmann rearrangement of cyclohexanone oxime, as compared with amorphous silica and bulk silica zeolite. The distinct catalytic performance of the nanosheets is attributable to silanol groups located on the surfactant-terminated crystal surfaces.
Publisher
American Chemical Society
Issue Date
2011-04
Keywords

zeolite nanosheets; Beckmann rearrangement; oxime; caprolactam; silicalite; hierarchical

Citation

ACS Catalysis, Vol.1, No.4, pp.337-341

ISSN
2155-5435
DOI
10.1021/cs100160g
URI
http://hdl.handle.net/10203/24969
Appears in Collection
CH-Journal Papers(저널논문)

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