논문 해외 국제전문학술지(SCI급) Surface Silanol Sites in Mesoporous MFI Zeolites for Catalytic Beckmann Rearrangement
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2023-05
- 저자명 Park, H., Bang, J., Park, H., Kim, J., Kim, J.-C., Park, J. Y.,* and Ryoo, R.*
- 학술지명 Catalysis Science and Technology
- 발행처명 The Royal Society of Chemistry
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 7
- 원문 링크 https://pubs.rsc.org/en/content/articlelanding/2023/cy/d3cy00543g
홈페이지논문 초록 (Abstract)
Silanol groups were generated in siliceous MFI zeolite nanosheets, via alkali-free synthesis routes, for catalytic application for gas-phase Beckmann rearrangement. The catalytic conversion by the zeolite nanosheets was investigated at 310 or 350 °C with cyclohexanone oxime, 4-phenylcyclohexanone oxime and cyclododecanone oxime. Here, cyclohexanone oxime was chosen as a small reactant that should be able to diffuse into the zeolite micropores, while the others were too bulky to diffuse. The catalytic conversion was analyzed in reference to a previous method used to generate hydrogen-bonded silanol nests in bulk-crystalline MFI zeolites using NH3/NH4+. The result of the analysis indicated that the silanol nest was necessary for the catalytic conversion of cyclohexanone oxime and 4-phenylcyclohexanone oxime, but isolated silanols on the external surface were sufficient for the reaction of cyclododecanone oxime.