DOI: 10.1016/j.jcou.2013.12.003
Scopus记录号: 2-s2.0-84891766062
论文题名: CO2 promoted oxidative dehydrogenation of n-butane over VO x/MO2-ZrO2 (M = Ce or Ti) catalysts
作者: Raju G. ; Reddy B.M. ; Park S.-E.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2014
卷: 5 起始页码: 41
结束页码: 46
语种: 英语
英文关键词: Carbon dioxide
; Mixed metal oxides
; n-Butane
; Oxidative dehydrogenation
; Soft oxidant
; Vanadium oxide
Scopus关键词: Mixed metal oxide
; n-Butane
; Oxidative dehydrogenations
; Soft oxidants
; Vanadium oxides
; Butane
; Carbon dioxide
; Dehydrogenation
; Metallic compounds
; Photoelectrons
; X ray diffraction
; X ray photoelectron spectroscopy
; Zirconium alloys
; Catalyst supports
英文摘要: The CO2 promoted oxidative dehydrogenation (ODH) of n-butane was investigated over mixed metal oxide supported vanadium catalysts. The investigated mixed metal oxide supports namely, CeO2-ZrO2 (CZ) and TiO2-ZrO2 (TZ) were synthesized by coprecipitation method, and the vanadium oxide was deposited on the supports by wet impregnation method. The synthesized samples were characterized by BET surface area, X-ray diffraction (XRD), temperature programmed reduction (TPR), and X-ray photoelectron spectroscopy (XPS) techniques. The XRD analysis of CZ and CZ supported V2O5 samples revealed the formation of CexZr1-xO2 solid solution and a highly dispersed vanadium oxide over the CZ support, respectively. On the other hand, different mixed oxide phases (ZrV2O7 and TiZrO 4) were observed in the case of TZ supported vanadia catalyst. The TPR reduction temperature of supported samples is lower than the bulk V 2O5. XPS results revealed that vanadium and cerium are in V5+ and Ce4+/Ce3+ oxidation states, respectively. Among the investigated catalysts, the CZ supported vanadium oxide catalyst exhibited a high activity and good time-on-stream stability. The redox property of the catalyst significantly influenced the catalytic activity in the ODH of n-butane with CO2. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52996
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Raju G.,Reddy B.M.,Park S.-E.. CO2 promoted oxidative dehydrogenation of n-butane over VO x/MO2-ZrO2 (M = Ce or Ti) catalysts[J]. Journal of CO2 Utilization,2014-01-01,5