DOI: 10.1016/j.jcou.2016.11.006
Scopus记录号: 2-s2.0-84995953633
论文题名: The proportion of Ce4+ in surface of CexZr1-xO2 catalysts: The key parameter for direct carboxylation of methanol to dimethyl carbonate
作者: Liu H. ; Zou W. ; Xu X. ; Zhang X. ; Yang Y. ; Yue H. ; Yu Y. ; Tian G. ; Feng S.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 17 起始页码: 43
结束页码: 49
语种: 英语
英文关键词: Acid-base properties
; CexZr1-xO2
; CO2
; Dimethyl carbonate
; The proportion of Ce4+
Scopus关键词: Alkalinity
; Carbon dioxide
; Carbonation
; Carboxylation
; Catalyst activity
; Catalysts
; Cerium alloys
; Chemical properties
; Methanol
; Zirconia
; Zirconium
; Acid-base property
; Catalyst surfaces
; Ceria zirconia mixed oxide
; Dimethyl carbonate
; Nominal composition
; Physicochemical property
; Preparation conditions
; The proportion of Ce<sup>4+</sup>
; Cerium
英文摘要: In order to correlate the physico-chemical properties of CexZr1-xO2 catalysts with their catalytic activities for direct carboxylation of methanol to dimethyl carbonate (DMC), ceria-zirconia mixed oxides with the same nominal composition (Ce0.5Zr0.5O2), which were prepared by different methods, were applied. The catalysts were characterized by means of XRD, N2 adsorption, ICP-MS, NH3-TPD, CO2-TPD, Raman spectroscopy and XPS. Significant variations in their physico-chemical properties were observed by varying the preparation conditions. The results showed that the catalytic activity of the ceria-zirconia mixed oxides increased with improving the proportion of Ce4+, acidity and basicity of the catalyst surface. And the number of surface Ce4+ content is the most important factor. © 2016 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52804
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Liu H.,Zou W.,Xu X.,et al. The proportion of Ce4+ in surface of CexZr1-xO2 catalysts: The key parameter for direct carboxylation of methanol to dimethyl carbonate[J]. Journal of CO2 Utilization,2017-01-01,17