DOI: 10.1016/j.jcou.2017.11.015
Scopus记录号: 2-s2.0-85036646819
论文题名: Nickel supported on YSZ: The effect of Ni particle size on the catalytic activity for CO2 methanation
作者: Kesavan J.K. ; Luisetto I. ; Tuti S. ; Meneghini C. ; Iucci G. ; Battocchio C. ; Mobilio S. ; Casciardi S. ; Sisto R.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 23 起始页码: 200
结束页码: 211
语种: 英语
英文关键词: Carbon deposition
; CO2 methanation
; In-operando XAS
; Ni/YSZ catalysts
Scopus关键词: Carbon dioxide
; Catalyst activity
; Catalysts
; Hydrogenation
; Indium compounds
; Methanation
; Particle size
; Yttria stabilized zirconia
; Carbon deposition
; Catalytic conversion
; CO2 concentration
; Dynamic condition
; Efficient catalysts
; Kinetic measurement
; Operando
; Reaction mechanism
; Nickel
英文摘要: The catalytic conversion of carbon dioxide to synthetic CH4 was studied on five Ni/YSZ samples, with the same nickel loading (10 wt%) but different Ni particle size. The catalysts, prepared by different methods, were characterized combining morphological (BET, TEM), structural (XRD, in-operando XAS), electronic (XPS, in-operando XANES) analysis and H2-TPR experiments. The results showed that catalytic activity and CH4 selectivity depended on size and morphology of Ni particles, and that type and amount of deposited carbon strongly depended on Ni<0 morphology. The kinetic measurements revealed that both H2 and CO2 reactants were activated on Ni sites, and that YSZ support was not directly involved in the reaction mechanism. The most efficient catalyst was that prepared by wet impregnation with Ni(EDTA)2− complex due to the high Ni0 dispersion. This catalyst showed low amount of carbon 0→Ni2+ oxidation using high CO2 concentration, thus it is applicable in dynamic conditions like those typical in the energy storage from renewable sources process. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111995
Appears in Collections: 气候减缓与适应
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作者单位: Department of Science, Roma Tre University, Via della Vasca navale 79, Roma, 00146, Italy; Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL Research, Monte Porzio Catone, Rome, 00040, Italy
Recommended Citation:
Kesavan J.K.,Luisetto I.,Tuti S.,et al. Nickel supported on YSZ: The effect of Ni particle size on the catalytic activity for CO2 methanation[J]. Journal of CO2 Utilization,2018-01-01,23