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Low-temperature CO oxidation on Co(0001)
Wu, Jiawei1,2; Chen, Jun1,3; Guo, Qing1; Dai, Dongxu1; Yang, Xueming1
Source PublicationCHEMICAL PHYSICS LETTERS
2017-09-01
DOI10.1016/j.cplett.2017.02.085
Volume683Pages:633-638
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS Research AreaChemistry ; Physics
WOS KeywordCARBON-MONOXIDE OXIDATION ; OXYGEN-CHEMISORPTION ; CATALYTIC-OXIDATION ; SURFACE ALLOY ; ADSORPTION ; WATER ; PD(100) ; NANOPARTICLES ; MECHANISMS ; DESORPTION
AbstractLow-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.
Language英语
WOS IDWOS:000405802200101
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152052
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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