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学科主题物理化学
Low-temperature oxidation of ethanol over a Mn0.6Ce0.4O2 mixed oxide
Li, Huaju2; Qi, Gongshin1; Tana2; Zhang, Xiaojing2; Huang, Xiumin2; Li, Wei1; Shen, Wenjie2; WeiLi; Shen WJ(申文杰)
关键词Mn0.6ce0.4o2 Mixed Oxide Solid Solution Ethanol Oxidation Molecular Oxygen Activation
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
2011-03-14
ISSN待补充
DOI10.1016/j.apcatb.2011.01.008
103期:1-2页:54-61
收录类别SCI
文章类型Article
部门归属5
项目归属501
产权排名1,1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]COMBUSTION METHOD ; VOC OXIDATION ; CATALYSTS ; FORMALDEHYDE ; NANOTUBES ; KINETICS ; ROUTE ; IR
英文摘要Low-temperature oxidation of ethanol over a Mn0.6Ce0.4O2 mixed oxide; A Mn0.6Ce0.4O2 mixed oxide exhibited rather high activity and stability for ethanol oxidation. Complete conversion of ethanol to CO2 was obtained at a temperature as low as 463 K and the activity maintained for 120 h on-stream without obvious deactivation. The Mn0.6Ce0.4O2 catalyst showed higher ethanol oxidation rate and better selectivity to CO2 which was even superior to a Pt/Al2O3 catalyst. Temperature-programmed surface reaction and spectroscopic studies have revealed that ethoxy species were formed immediately upon ethanol adsorption on the catalyst at room temperature. These intermediates were further oxidized to acetate and carbonate species, and finally converted to CO2 at elevated temperatures. The effective activation of molecule oxygen over the Mn0.6Ce0.4O2 solid solution plays an essential role in determining the catalytic performance. Oxygen transfer from molecular oxygen to MnO2 active sites through CeO2 in the solid solution realized the effective activation of molecular oxygen. At lower temperatures, the oxidation of ethanol mainly produced acetaldehyde, and the direct oxidation of ethanol to CO2 became the major route at higher temperatures, depending on the activation of molecular oxygen. (C) 2011 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000288884500007
引用统计
被引频次:45[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/115460
专题中国科学院大连化学物理研究所
通讯作者WeiLi; Shen WJ(申文杰)
作者单位1.Gen Motors R&D Ctr, Warren, MI 48090 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Li, Huaju,Qi, Gongshin,Tana,et al. Low-temperature oxidation of ethanol over a Mn0.6Ce0.4O2 mixed oxide[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2011,103(1-2):54-61.
APA Li, Huaju.,Qi, Gongshin.,Tana.,Zhang, Xiaojing.,Huang, Xiumin.,...&申文杰.(2011).Low-temperature oxidation of ethanol over a Mn0.6Ce0.4O2 mixed oxide.APPLIED CATALYSIS B-ENVIRONMENTAL,103(1-2),54-61.
MLA Li, Huaju,et al."Low-temperature oxidation of ethanol over a Mn0.6Ce0.4O2 mixed oxide".APPLIED CATALYSIS B-ENVIRONMENTAL 103.1-2(2011):54-61.
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