새글 논문 해외 국제전문학술지(SCI급) (공동) Surface silanol sites in mesoporous MFI zeolites for catalytic Beckmann rearrangement
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2023-05
- 저자명 Hanyoung Park, Jisuk Bang, Hongjun Park, Jaeheon Kim, Jeong-Chul Kim, Jeong Young Park*, Ryong Ryoo*
- 학술지명 Catalysis Science and Technology
- 발행처명 Royal Society of Chemistry
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 7
- 원문 링크 https://pubs.rsc.org/cy/article/13/11/3436/804328/Surface-silanol-sites-in-mesoporous-MFI-zeolites
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.