DOI: 10.1016/j.jcou.2018.03.006
Scopus记录号: 2-s2.0-85043386337
论文题名: A room temperature synthesizable zeolitic imidazolium framework catalyst for the solvent-free synthesis of cyclic carbonates
作者: Babu R. ; Kim S.-H. ; Kurisingal J.F. ; Kim H.-J. ; Choi G.-G. ; Park D.-W.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 25 起始页码: 6
结束页码: 13
语种: 英语
英文关键词: >99% selectivity
; CO2-epoxide cycloaddition
; Reusability
; ZIF-71
Scopus关键词: Carbon dioxide
; Carbonates
; Catalyst activity
; Catalysts
; Cycloaddition
; Density functional theory
; Leaching
; Reusability
; Temperature
; Zinc
; Cycloaddition reaction
; Reaction conditions
; Reaction mechanism
; Solvent free synthesis
; Structural and physical properties
; Synthesis of cyclic carbonates
; Turnover frequency
; ZIF-71
; Catalyst selectivity
英文摘要: A zinc-based zeolitic imidazolium framework ZIF-71 was synthesized at room temperature and its structural and physical properties were exploited for the CO2-epoxide cycloaddition reactions. ZIF-71 is found to catalyze the synthesis of cyclic carbonates under both high (120°C, co-catalyst free) and low temperature (room temperature, with co-catalyst) conditions with >99% selectivity. The reaction conditions, turnover frequency (TOF), selectivity, reusability and non-leaching properties of ZIF-71 was compared with that of the earlier reported Zn based ZIFs in this area of CO2 transformation and the results showed that the ZIF-71 reporting here stays along or a step ahead of the previously reported ZIFs. More than 99% selectivity to the final five-membered products was achieved by using ZIF-71 throughout the reactions; thereby the essential criterion of 100% atom economy is well maintained. With its permanent porosity and low leaching, the ZIF-71 catalyst is reusable for more than five times. Finally, a reaction mechanism for the catalytic activity of ZIF-71 was also proposed based on the previous density functional theory (DFT) studies. © 2018 Elsevier Ltd. All rights reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111910
Appears in Collections: 气候减缓与适应
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作者单位: Division of Chemical and Biomolecular Engineering, Pusan National University, Busan, 609-735, South Korea
Recommended Citation:
Babu R.,Kim S.-H.,Kurisingal J.F.,et al. A room temperature synthesizable zeolitic imidazolium framework catalyst for the solvent-free synthesis of cyclic carbonates[J]. Journal of CO2 Utilization,2018-01-01,25