논문 해외 국제전문학술지(SCI급) Fischer-Tropsch synthesis performance of iron Nanocatalyst confined in mesopores of MFI zeolite nanosponge
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2025-01
- 저자명 Jeong, W., Kim, J., Cho, K.,* Kim, J.-C.*
- 학술지명 Fuel
- 발행처명 ELSEVIER
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
- 원문 링크 https://www.sciencedirect.com/science/article/pii/S0016236124028229
홈페이지논문 초록 (Abstract)
An MFI zeolite with a nanosponge morphology was synthesized by the method of using zeolite structure-directing diammonium surfactant. The zeolite nanosponge was composed of 2.5-nm thick MFI frameworks, which were interconnected in a 3D manner to possess an approximately 4-nm mesopore system. When 30- wt% iron species were supported as an active species on the zeolite nanosponge, it exhibited a high catalytic activity and very long catalytic lifetime for Fischer-Tropsch synthesis, compared to when supported on typical γ-alumina. Using various material characterization tools, it was confirmed that iron existed as an interconnected network within the 3D mesoporous system. Due to this network morphology, which was inseparably embedded within the zeolite nanosponge, the Fe/zeolite catalyst is believed to show excellent stability against metal sintering. Furthermore, the catalytic activity of the Fe/zeolite could be further improved by up to 78% through the incorporation of promoters such as K, La and Mg.