DOI: 10.1016/j.jcou.2014.12.006
Scopus记录号: 2-s2.0-84921392009
论文题名: DMF and mesoporous Zn/SBA-15 as synergistic catalysts for the cycloaddition of CO2 to propylene oxide
作者: Zhong S. ; Liang L. ; Liu M. ; Liu B. ; Sun J.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2015
卷: 9 起始页码: 58
结束页码: 65
语种: 英语
英文关键词: Acid-base catalysts
; CO2
; DMF
; Propylene carbonate
; Zn/SBA-15
Scopus关键词: Carbon dioxide
; Carbonation
; Catalysis
; Catalysts
; Cycloaddition
; Synthesis (chemical)
; Zinc
; Acid-base catalysts
; Adsorption/desorption
; Cycloaddition reaction
; DMF
; Mesoporous structures
; Physicochemical property
; Propylene carbonate
; Reaction temperature
; Propylene
英文摘要: A series of Zn/SBA-15 samples with Zn/Si molar ratios from 0.06 to 0.18 were prepared by one-pot synthesis method. XRD, N2 adsorption/desorption, TEM, FTIR and XPS techniques were used to determine the textual structures and physicochemical properties of Zn/SBA-15 samples. The mesoporous structure of SBA-15 was well preserved with Zn/Si molar ratio up to 0.18. Thereafter, Zn/SBA-15 was tested for the cycloaddition reaction of CO2 and propylene oxide to produce propylene carbonate in the presence of DMF. The catalytic results showed that Zn/SBA-15 and DMF synergistically catalyzed the cycloaddition of CO2 to propylene oxide. Moreover, the effects of various reaction factors, including different metal elements modified SBA-15, reaction temperature, CO2 pressure, reaction time and DMF amount were also discussed in detail. Propylene carbonate yield as high as 92.3% was achieved on Zn/SBA-15(0.15) catalyst at 160 °C and 2 MPa of CO2 pressure for 6 h in the presence of DMF. In addition, the recycling property of Zn/SBA-15 catalyst was also investigated. A possible catalytic mechanism for the cycloaddition of CO2 to propylene oxide was proposed. © 2015 Elsevier Ltd. All rights reserved. 资助项目: National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52979
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Zhong S.,Liang L.,Liu M.,et al. DMF and mesoporous Zn/SBA-15 as synergistic catalysts for the cycloaddition of CO2 to propylene oxide[J]. Journal of CO2 Utilization,2015-01-01,9