DOI: 10.1016/j.jcou.2018.11.006
Scopus记录号: 2-s2.0-85057609940
论文题名: Improved methanol yield and selectivity from CO2 hydrogenation using a novel Cu-ZnO-ZrO2 catalyst supported on Mg-Al layered double hydroxide (LDH)
作者: Fang X. ; Men Y. ; Wu F. ; Zhao Q. ; Singh R. ; Xiao P. ; Du T. ; Webley P.A.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2019
卷: 29 起始页码: 57
结束页码: 64
语种: 英语
英文关键词: Co-precipitation
; CO2 hydrogenation
; Cu-ZnO-ZrO2
; LDH
; Methanol
Scopus关键词: Aluminum alloys
; Aluminum compounds
; Carbon dioxide
; Catalysis
; Catalyst supports
; Copper
; Copper oxides
; Coprecipitation
; Fossil fuels
; Hydrogenation
; II-VI semiconductors
; Magnesium alloys
; Magnesium compounds
; Methanol
; Methanol fuels
; Synthesis gas manufacture
; Zinc oxide
; Zirconia
; Catalytic reactions
; CO2 hydrogenation
; Commercial catalyst
; Conventional catalyst
; Copper-based catalysts
; Layered double hydroxides
; Methanol selectivity
; Mg-Al layered double hydroxide
; Catalyst selectivity
英文摘要: Methanol synthesis via CO2 hydrogenation is an important part of the strategy for generating clean energy as we attempt to reduce our dependency on fossil fuels. Conventional catalysts for this reaction need improvement in their methanol selectivity. In this work, a layered double hydroxide (Mg-Al LDH) was used as a carrier for Cu-ZnO-ZrO2 to produce a catalyst by co-precipitation. From characterization results, CuO-ZnO-ZrO2 nanoparticles were formed and were uniformly dispersed and attached to the surface of LDH. BET surface area and copper dispersion of the catalysts were significantly improved by 4.3 times and 2.9 times, respectively, compared with a reference catalyst without the support. In a catalytic reaction, the catalyst showed dramatic methanol selectivity of 78.3% at 523 K and 3.0 MPa, which is 14.4% higher than the commercial catalyst measured in this investigation and about 50% higher than conventional copper-based catalysts in literatures. It also showed over twice the space time yield based on active metal sites compared to a commercial catalyst in the temperature range 473 K-573 K. Therefore, the prepared catalyst can be efficiently applied at relatively mild reaction temperatures and pressures. © 2018 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/117325
Appears in Collections: 气候变化与战略
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Recommended Citation:
Fang X.,Men Y.,Wu F.,et al. Improved methanol yield and selectivity from CO2 hydrogenation using a novel Cu-ZnO-ZrO2 catalyst supported on Mg-Al layered double hydroxide (LDH)[J]. Journal of CO2 Utilization,2019-01-01,29