DOI: 10.1016/j.jcou.2017.05.001
Scopus记录号: 2-s2.0-85019995802
论文题名: Low-temperature oxidative coupling of methane in an electric field using carbon dioxide over Ca-doped LaAlO3 perovskite oxide catalysts
作者: Yabe T. ; Kamite Y. ; Sugiura K. ; Ogo S. ; Sekine Y.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2017
卷: 20 起始页码: 156
结束页码: 162
语种: 英语
英文关键词: Carbon dioxide utilization
; Electric field
; Low temperature catalytic reaction
; Oxidative coupling of methane
; Perovskite oxide
Scopus关键词: Calcium
; Catalysis
; Catalyst activity
; Catalysts
; Electric fields
; Lanthanum alloys
; Methane
; Perovskite
; Reaction intermediates
; Temperature
; Carbon dioxide utilization
; Catalytic reactions
; Dry reforming-of-methane
; Hydrocarbon formation
; Methane conversions
; Oxidative coupling of methane
; Perovskite oxide catalysts
; Perovskite oxides
; Carbon dioxide
英文摘要: Methane conversion was conducted over various perovskite oxide catalysts at 423 K using carbon dioxide as an oxidant in an electric field. La0.7Ca0.3AlO3-δ catalyst showed high CO2-OCM activity. The highest CO2-OCM activity, C2 yield of 7.4%, was obtained even at 348 K, that value was higher than those of other earlier reports. Dry reforming of methane to produce syngas (H2 + CO) proceeded simultaneously, and no other byproduct was observed. Results of in-situ IR, XRD and TG measurements demonstrated that CO2 adsorption on the catalyst surface and formation of La2O2CO3 intermediate are important for progress of the CO2-OCM reaction, even at low temperature in an electric field. Ca atom incorporated in LaAlO3 perovskite played an important role in C2 hydrocarbon formation. © 2017 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52684
Appears in Collections: 影响、适应和脆弱性
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Recommended Citation:
Yabe T.,Kamite Y.,Sugiura K.,et al. Low-temperature oxidative coupling of methane in an electric field using carbon dioxide over Ca-doped LaAlO3 perovskite oxide catalysts[J]. Journal of CO2 Utilization,2017-01-01,20