DOI: 10.1016/j.jcou.2016.07.001
Scopus记录号: 2-s2.0-84978766082
论文题名: A graphene-supported copper-based catalyst for the hydrogenation of carbon dioxide to form methanol
作者: Fan Y.J. ; Wu S.F.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2016
卷: 16 起始页码: 150
结束页码: 156
语种: 英语
英文关键词: Adsorption
; Carbon dioxide
; Copper-based catalyst
; Methanol
; Reduced graphene oxide
Scopus关键词: Adsorption
; Aluminum
; Carbon dioxide
; Catalyst activity
; Catalyst selectivity
; Catalysts
; Chemical reactors
; Copper
; Copper oxides
; Desorption
; Gas adsorption
; Graphene
; Hydrogenation
; Methanol
; Scanning electron microscopy
; Sintering
; Synthesis gas manufacture
; Temperature programmed desorption
; X ray diffraction
; Zinc oxide
; Zirconium alloys
; BET specific surface area
; Carbon dioxide hydrogenation
; Catalytic performance
; Copper-based catalysts
; Optimum reaction conditions
; Reduced graphene oxides
; Reduced graphene oxides (RGO)
; Temperature-programmed reduction
; Catalyst supports
英文摘要: The use of reduced graphene oxide (rGO) as a novel support for the CuO-ZnO-ZrO2-Al2O3/rGO (CZZA/rGO) catalyst in forming methanol by carbon dioxide hydrogenation has been studied herein. Furthermore, the CuO-ZnO-ZrO2-Al2O3 (CZZA) catalyst was also prepared to compare catalytic performance. The catalysts were characterized using BET specific surface area, X-ray diffraction (XRD), H2-temperature-programmed reduction (H2-TPR), scanning electron microscopy (SEM), H2-temperature-programmed desorption (H2-TPD) and CO2-temperature-programmed desorption (CO2-TPD) techniques and were evaluated by a fixed-bed reactor for methanol synthesis from the hydrogenation of carbon dioxide. The characterization results show that the surface area of the CZZA/rGO catalyst was 125.6 m2/g and the adsorption capacity of H2 and CO2 increased remarkably due to the support of rGO. Moreover, the CO2 conversion over the CZZA/rGO catalyst was 14.7% under optimum reaction conditions (a temperature of 513 K, a pressure of 20 bar, and a space velocity of 6075 h-1). The methanol yield was 11.6%, while that of CZZA catalyst without rGO support was only 9.8%. The superior activity of the CZZA/rGO catalyst could be attributed to its large surface area and high H2 and CO2 adsorption capacity, which prevent the catalyst sintering and led to a higher CO2 conversion and methanol selectivity. © 2016 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/52866
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Fan Y.J.,Wu S.F.. A graphene-supported copper-based catalyst for the hydrogenation of carbon dioxide to form methanol[J]. Journal of CO2 Utilization,2016-01-01,16