DOI: 10.1016/j.jcou.2018.08.002
Scopus记录号: 2-s2.0-85051328144
论文题名: Direct synthesis of dimethyl carbonate from CO2 and methanol over trifluoroacetic acid modulated UiO-66
作者: Xuan K. ; Pu Y. ; Li F. ; Li A. ; Luo J. ; Li L. ; Wang F. ; Zhao N. ; Xiao F.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 27 起始页码: 272
结束页码: 282
语种: 英语
英文关键词: Carbon dioxide
; Dimethyl carbonate
; Metal-organic frameworks
; Methanol
; Trifluoroacetic acid modulation
Scopus关键词: Carbon dioxide
; Carbonation
; Crystalline materials
; Methanol
; Modulation
; Organometallics
; Pore size
; Trifluoroacetic acid
; Dimethyl carbonate
; Direct synthesis
; In-situ FT-IR
; Lewis acid site
; Lewis basic site
; Metal organic framework
; Reaction mechanism
; Surface area
; Catalyst activity
英文摘要: A series of trifluoroacetic acid (TFA) modulated metal-organic frameworks UiO-66 catalysts were synthesized for the direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol in this work. Characterization results show that the surface area, pore size, pore volume as well as the amount of missing-linker defects, Lewis acid site, Lewis basic site and hydroxyl of UiO-66-X can be tuned by regulating the amount of TFA modulator. Catalytic activity assessments reveal that TFA modulation enhanced the activity of UiO-66-X. The catalytic activity improvement of the UiO-66-X could be attributed to the increased amount of active sites and the enlargement of porosity originated from TFA modulation. Moreover, a possible reaction mechanism for DMC synthesis from CO2 and methanol over UiO-66-X was proposed based on the in situ FT-IR results. © 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/111794
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China; University of Chinese, Academy of Sciences, Beijing, 100049, China; Eastern Liaodong University, Dandong, 118001, China
Recommended Citation:
Xuan K.,Pu Y.,Li F.,et al. Direct synthesis of dimethyl carbonate from CO2 and methanol over trifluoroacetic acid modulated UiO-66[J]. Journal of CO2 Utilization,2018-01-01,27