DOI: 10.1016/j.jcou.2014.12.008
Scopus记录号: 2-s2.0-84941935935
论文题名: Cu/Zn/Al/Zr catalysts via phase-pure hydrotalcite-like compounds for methanol synthesis from carbon dioxide
作者: Gao P. ; Xie R. ; Wang H. ; Zhong L. ; Xia L. ; Zhang Z. ; Wei W. ; Sun Y.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2015
卷: 11 起始页码: 41
结束页码: 48
语种: 英语
英文关键词: Al content
; CO2 hydrogenation
; Cu/Zn/Al/Zr catalyst
; Hydrotalcite-like compounds
; Methanol synthesis
Scopus关键词: Aluminum
; Carbon dioxide
; Carbonate minerals
; Catalyst selectivity
; Catalysts
; Hydrogenation
; Methanol
; Precipitation (chemical)
; Synthesis gas manufacture
; Zinc
; Zirconium
; Al content
; Catalytic performance
; Catalytic tests
; Coprecipitation method
; Cu/zn/al/zr catalysts
; Hydrotalcite-like compound
; Hydrotalcites
; Methanol synthesis
; Copper compounds
英文摘要: Cu/Zn/Al/Zr catalysts with Cu2+:Zn2+:Al3+:Zr4+ = 2:1:x:0.1 (x = 0.6-1.5) were prepared from hydrotalcite-like precursors by co-precipitation method and tested for the CO2 hydrogenation to methanol. Both Cu/Zn/Al/Zr hydrotalcite-like and malachite phase were formed at low Al content. However, with the increase of Al content, the yield of hydrotalcite-like phase increased and phase-pure Cu/Zn/Al/Zr hydrotalcite-like compound was obtained for x ≥ 0.9. In addition, both the specific surface area and the dispersion of Cu increased gradually with the increase of Al, while the exposed Cu surface area first increased until Al content was 27.9 mol%, then decreased. The results of catalytic test for CO2 hydrogenation revealed that Cu/Zn/Al/Zr catalysts via phase-pure hydrotalcite-like compounds exhibited much better catalytic performance with higher CO2 conversion and CH3OH selectivity compared with the catalyst derived from mixed phase (hydrotalcite-like and malachite). The Cu/Zn/Al/Zr catalysts with Cu2+:Zn2+:Al3+:Zr4+ = 2:1:1.2:0.1 resulting from phase-pure hydrotalcite-like precursors afforded the substantial stability and the best catalytic performance. © 2015 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/52956
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Gao P.,Xie R.,Wang H.,et al. Cu/Zn/Al/Zr catalysts via phase-pure hydrotalcite-like compounds for methanol synthesis from carbon dioxide[J]. Journal of CO2 Utilization,2015-01-01,11