DOI: 10.1016/j.jcou.2018.01.017
Scopus记录号: 2-s2.0-85041429626
论文题名: Melem based multifunctional catalyst for chemical fixation of carbon dioxide into cyclic carbonate
作者: Song X. ; Wu Y. ; Pan D. ; Wei R. ; Gao L. ; Zhang J. ; Xiao G.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 24 起始页码: 287
结束页码: 297
语种: 英语
英文关键词: Carbon dioxide
; Cyclic carbonate
; Epoxides
; Multifunctional melem oligomers
Scopus关键词: Carbonates
; Carbonation
; Catalysts
; Chemical modification
; Cycloaddition
; Oligomers
; Propylene
; Catalytic performance
; Chemical fixation of carbon dioxide
; Cyclic carbonates
; Epoxides
; Multifunctional catalysts
; Optimal reaction condition
; Propylene carbonate
; Quaternary ammonium group
; Carbon dioxide
英文摘要: In the present work, melem based catalysts with various functional groups were developed by the modification of melem oligomers and tested for the chemical fixation of CO2 into cyclic carbonates. The characterization of these catalysts, by means of SEM, BET, XRD, IR, TG and XPS, verified the functional groups are successfully incorporated into the melem oligomers structure. Activity test demonstrated that melem oligomers grafted with both hydroxyl and quaternary ammonium groups (MOSB) presented the best catalytic performance. A propylene oxide conversion of 97.4% and propylene carbonate selectivity of 97.8% were obtained under the optimal reaction conditions. The simultaneous existence of edge defects, hydroxyl groups and quaternary ammonium groups in the structure of the catalyst are responsible for the high performance of MOSB. These three groups synergistically catalyzed the chemical fixation of CO2 to proceed with high efficiency. Moreover, moderate yield could still be obtained after five cycles. A possible reaction mechanism was proposed for the cycloaddition of CO2 with epoxides to form cyclic carbonates. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111983
Appears in Collections: 气候减缓与适应
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作者单位: School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China
Recommended Citation:
Song X.,Wu Y.,Pan D.,et al. Melem based multifunctional catalyst for chemical fixation of carbon dioxide into cyclic carbonate[J]. Journal of CO2 Utilization,2018-01-01,24