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Acetaldehyde polymerization on Co(0001): the role of CO

文献类型：期刊论文

作者Chen, Jun1,2; Guo, Qing2,3; Wu, Jiawei2; Dai, Dongxu2; Chen, Maodu1; Yang, Xueming2
刊名PHYSICAL CHEMISTRY CHEMICAL PHYSICS
出版日期2019-04-28
卷号21期号:16页码:8275-8281
ISSN号1463-9076
DOI10.1039/c9cp00441f
通讯作者Guo, Qing(guoqing@dicp.ac.cn) ; Yang, Xueming(xmyang@dicp.ac.cn)
英文摘要The adsorption and polymerization of acetaldehyde (CH3CHO) have been investigated on clean and CO pre-covered Co(0001) surfaces using the temperature programmed desorption (TPD) method. On the clean Co(0001) surface, CH3CHO molecules can polymerize to produce paraldehyde with very low efficiency. With pre-dosed CO molecules on Co(0001), the decomposition of CH3CHO is greatly inhibited. When the coverage of pre-dosed CO is <0.33 ML, no enhancement of CH3CHO polymerization is observed. However, when the pre-dosed CO coverage is >0.33 ML, the polymerization of CH3CHO is significantly enhanced during the TPD process. Further results suggest that CO molecules adsorbed at the bridge/hollow sites may initialize the polymerization by nucleophilic attack of CH3CHO molecules with their O atoms. Moreover, the polymerization product induced by CO molecules is not paraldehyde, but linear polymer chains of CH3CHO at low CH3CHO coverages and probably three dimensional polymer structures at high CH3CHO coverages.
WOS关键词SURFACE REACTIVITY ; ADSORPTION ; DECOMPOSITION ; OXIDATION ; DECARBONYLATION ; ACTIVATION ; CATALYSTS ; MECHANISM ; ACETATE
资助项目National Natural Science Foundation of China (NSFC Center for Chemical Dynamics)[21673235] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB17000000] ; Youth Innovation Promotion Association CAS
WOS研究方向Chemistry ; Physics
语种英语
WOS记录号WOS:000465603200006
出版者ROYAL SOC CHEMISTRY
资助机构National Natural Science Foundation of China (NSFC Center for Chemical Dynamics) ; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics) ; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics) ; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics) ; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS
源URL[http://cas-ir.dicp.ac.cn/handle/321008/171917]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Guo, Qing; Yang, Xueming
作者单位1.Dalian Univ Technol, Sch Phys, Minist Educ, Key Lab Mat Modificat Laser Electron & Ion Beams, Dalian 116023, Liaoning, Peoples R China
2.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China
3.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Jun,Guo, Qing,Wu, Jiawei,et al. Acetaldehyde polymerization on Co(0001): the role of CO[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2019,21(16):8275-8281.
APA Chen, Jun,Guo, Qing,Wu, Jiawei,Dai, Dongxu,Chen, Maodu,&Yang, Xueming.(2019).Acetaldehyde polymerization on Co(0001): the role of CO.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,21(16),8275-8281.
MLA Chen, Jun,et al."Acetaldehyde polymerization on Co(0001): the role of CO".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 21.16(2019):8275-8281.

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来源：大连化学物理研究所

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