DOI: 10.1016/j.jcou.2018.08.004
Scopus记录号: 2-s2.0-85051252994
论文题名: Yttrium promoted Ni-based double-layered hydroxides for dry methane reforming
作者: Świrk K. ; Gálvez M.E. ; Motak M. ; Grzybek T. ; Rønning M. ; Da Costa P.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 27 起始页码: 247
结束页码: 258
语种: 英语
英文关键词: Carbon dioxide
; Double-layered hydroxides
; Dry reforming of methane
; Nickel
; Yttrium
Scopus关键词: Carbon dioxide
; Catalysts
; Crystallite size
; Methane
; Nickel
; Yttrium
; Yttrium compounds
; Double layered
; Dry reforming-of-methane
; Dry-methane reforming
; Enhanced stability
; H2 chemisorption
; Nitrate hexahydrate
; Promoted catalysts
; Temperature range
; Nickel compounds
英文摘要: Yttrium modified Ni-based double-layered hydroxides were tested as novel catalysts in dry methane reforming. The catalysts were characterized by XRF, BET analysis, XRD, TPR-H2, TPD-CO2, TGA/DSC-MS, H2 chemisorption and TEM. Co-precipitation with yttrium (III) nitrate hexahydrate resulted in increased specific surface area, smaller Ni crystallite size, enhanced reducibility, and higher distribution of weak and medium basic sites as compared to Y-free material. The DRM catalytic tests, carried out in the temperature range of 850-600 °C, led to a significant improvement of activity, with the 1.5 wt % Y-promoted catalyst being the most efficient in converting both CH4 and CO2. Moreover, the 10 h test at 700 °C further confirmed enhanced stability for this HTNi-Y1.5 catalyst. Higher CO2 conversion than CH4 conversion and less CO compared to H2 proves that side reactions are occurring simultaneously. © 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/111818
Appears in Collections: 气候减缓与适应
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作者单位: Sorbonne Université, Institut Jean le Rond d'Alembert, CNRS, 2 Place de la Gare de Ceinture, Saint-Cyr-l'École, F-78210, France; AGH University of Science and Technology, Faculty of Energy and Fuels, Adama Mickiewicza Avenue 30, Cracow, 30-059, Poland; Norwegian University of Science and Technology, Department of Chemical Engineering, Sem Sælandsvei 4, Trondheim, N-7491, Norway
Recommended Citation:
Świrk K.,Gálvez M.E.,Motak M.,et al. Yttrium promoted Ni-based double-layered hydroxides for dry methane reforming[J]. Journal of CO2 Utilization,2018-01-01,27