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Low-temperature CO oxidation on Co(0001)
Wu, Jiawei1,2; Chen, Jun1,3; Guo, Qing1; Dai, Dongxu1; Yang, Xueming1
刊名CHEMICAL PHYSICS LETTERS
2017-09-01
DOI10.1016/j.cplett.2017.02.085
683页:633-638
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Physics
关键词[WOS]CARBON-MONOXIDE OXIDATION ; OXYGEN-CHEMISORPTION ; CATALYTIC-OXIDATION ; SURFACE ALLOY ; ADSORPTION ; WATER ; PD(100) ; NANOPARTICLES ; MECHANISMS ; DESORPTION
英文摘要Low-temperature oxidation of CO, perhaps the most extensively studied reaction in the history of heterogeneous catalysis, is becoming increasingly important in the context of cleaning air and lowering automotive emissions. Here, we have studied low-temperature CO oxidation on Co(0001) using temperature programed desorption method. We show that chemisorbed O adlayer on Co(0001) does not promote CO2 formation. However, when a Co3O4-like surface is formed at 90 K, large amount of CO2 is produced at 90 K in the presence of weakly bound oxygen species, demonstrating that lowtemperature CO oxidation can be rationalized on O-2-saturated Co3O4-like oxide surfaces. However, the formation of carbonate species via the CO2 product and weakly bound oxygen species reduces the yield of low temperature CO2. Thus, how to block the formation of carbonate plays a key role in enhancing the low-temperature CO2 production on the Co3O4-like oxide surfaces. (C) 2017 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000405802200101
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152052
专题中国科学院大连化学物理研究所
作者单位1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
3.Dalian Univ Technol, Sch Phys & Optoelect Engn, Dalian 116023, Liaoning, Peoples R China
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Wu, Jiawei,Chen, Jun,Guo, Qing,et al. Low-temperature CO oxidation on Co(0001)[J]. CHEMICAL PHYSICS LETTERS,2017,683:633-638.
APA Wu, Jiawei,Chen, Jun,Guo, Qing,Dai, Dongxu,&Yang, Xueming.(2017).Low-temperature CO oxidation on Co(0001).CHEMICAL PHYSICS LETTERS,683,633-638.
MLA Wu, Jiawei,et al."Low-temperature CO oxidation on Co(0001)".CHEMICAL PHYSICS LETTERS 683(2017):633-638.
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