DOI: 10.1016/j.jcou.2018.05.025
Scopus记录号: 2-s2.0-85047763589
论文题名: Transformation of CO2 with glycerol to glycerol carbonate by a novel ZnWO4-ZnO catalyst
作者: Liu J. ; He D.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 26 起始页码: 370
结束页码: 379
语种: 英语
英文关键词: Carbonylation
; CO2
; Glycerol
; Glycerol carbonate
; ZnWO4-ZnO
Scopus关键词: Carbon dioxide
; Carbonation
; Carbonylation
; Catalyst activity
; Chemical activation
; Hydrothermal synthesis
; II-VI semiconductors
; Reaction intermediates
; Zinc oxide
; Adsorption patterns
; Bidentate carbonates
; Catalytic performance
; Crystallite structures
; Glycerol carbonate
; Improved activities
; Seven-membered rings
; Wet impregnation method
; Glycerol
英文摘要: ZnWO4-ZnO catalysts with different W content were prepared by conventional hydrothermal and wet impregnation methods and applied in the direct synthesis of glycerol carbonate from CO2 and glycerol. The crystallite structure, texture property, morphology, redox and acid-base properties and the surface chemical situation of the catalysts were characterized by XRD, BET, TEM, H2-TPR, NH3/CO2-TPD and XPS. The possible activation routes of CO2 and glycerol were analyzed with DRIFTS and FTIR. ZnWO4-ZnO composite catalysts showed better catalytic performances with respect to ZnO in the carbonylation of glycerol with CO2. The improved activity of ZnWO4-ZnO catalysts was associated with the formation of ZnWO4, the interaction between ZnWO4 and ZnO, and the enhanced moderate acidic property. DIRFTS results showed that chelating bidentate carbonate species was the main adsorption pattern for CO2 on ZnO, while the introduction of W led to the bridged bidentate carbonate, which became the main adsorption pattern on ZnWO4-ZnO. As for the activation of glycerol, zinc glycerolate played an important role in the reaction process. Based on the reaction and characterization results, a plausible reaction route involved a seven-membered ring esters intermediate was suggested for the reaction of CO2 and glycerol over ZnWO4-ZnO catalysts. © 2018 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111851
Appears in Collections: 气候减缓与适应
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作者单位: Innovative Catalysis Program, Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
Recommended Citation:
Liu J.,He D.. Transformation of CO2 with glycerol to glycerol carbonate by a novel ZnWO4-ZnO catalyst[J]. Journal of CO2 Utilization,2018-01-01,26