DICP OpenIR
Subject Area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)
KeywordMn0.6ce0.4o2 Mixed Oxide Solid Solution Ethanol Oxidation Molecular Oxygen Activation
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
2011-03-14
ISSN待补充
DOI10.1016/j.apcatb.2011.01.008
Volume103Issue:1-2Pages:54-61
Indexed BySCI
SubtypeArticle
Department5
Funding Project501
Contribution Rank1,1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordCOMBUSTION METHOD ; VOC OXIDATION ; CATALYSTS ; FORMALDEHYDE ; NANOTUBES ; KINETICS ; ROUTE ; IR
AbstractLow-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.
Language英语
WOS IDWOS:000288884500007
Citation statistics
Cited Times:51[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/115460
Collection中国科学院大连化学物理研究所
Corresponding AuthorWeiLi; Shen WJ(申文杰)
Affiliation1.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
Recommended Citation
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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