DICP OpenIR
Photoinduced Decomposition of Formaldehyde on Rutile TiO2(100)-(1x1)
Chen, Xiao1,2; Li, Fang-Liang2,3; Guo, Qing1; Dai, Dong-xu1; Yang, Xue-ming1
Corresponding AuthorGuo, Qing(guoqing@dicp.ac.cn) ; Yang, Xue-ming(xmyang@dicp.ac.cn)
KeywordRutile TiO2(100)-(1x1) Formaldehyde Temperature-programmed desorption Photoinduced decomposition
Source PublicationCHINESE JOURNAL OF CHEMICAL PHYSICS
2018-08-01
ISSN1674-0068
DOI10.1063/1674-0068/31/cjcp1806137
Volume31Issue:4Pages:547-554
Funding ProjectNational Natural Science Foundation of China[21673235] ; National Natural Science Foundation of China[21403224] ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences
WOS SubjectPhysics, Atomic, Molecular & Chemical
WOS Research AreaPhysics
WOS KeywordTIO2(110) SURFACE ; TIO2 PHOTOCATALYSIS ; METHANOL SYNTHESIS ; THERMAL-CATALYSIS ; OXIDE SURFACES ; CHEMISTRY ; WATER ; ADSORPTION ; OXIDATION ; IDENTIFICATION
AbstractWe have investigated the photoinduced decomposition of formaldehyde (CH2O) on a rutile TiO2(100)-(1x1) surface at 355 nm using temperature-programmed desorption. Products, formate (HCOO-), methyl radical (CH3 center dot), ethylene (C2H4), and methanol (CH3OH) have been detected. The initial step in the decomposition of CH2O on the rutile TiO2(100)-(1x1) surface is the formation of a dioxymethylene intermediate in which the carbonyl O atom of CH 2 O is bound to a Ti atom at the five-fold-coordinated Ti4+ (Ti-5c) site and its carbonyl C atom bound to a nearby bridge-bonded oxygen (O-b) atom, respectively. During 355 nm irradiation, the dioxymethylene intermediate can transfer an H atom to the O-b atom, thus forming HCOO directly, which is considered as the main reaction channel. In addition, the dioxymethylene intermediate can also transfer methylene to the O-b row and break the C-O bond, thus leaving the original carbonyl O atom at the Ti-5c site. After the transfer of methylene, several pathways to products are available. Thus, we have found that O-b atoms are intimately involved in the photoinduced decomposition of CH2O on the rutile TiO2(100)-(1x1) surface.
Language英语
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences
WOS IDWOS:000445660500023
PublisherCHINESE PHYSICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166959
Collection中国科学院大连化学物理研究所
Corresponding AuthorGuo, Qing; Yang, Xue-ming
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xiao,Li, Fang-Liang,Guo, Qing,et al. Photoinduced Decomposition of Formaldehyde on Rutile TiO2(100)-(1x1)[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2018,31(4):547-554.
APA Chen, Xiao,Li, Fang-Liang,Guo, Qing,Dai, Dong-xu,&Yang, Xue-ming.(2018).Photoinduced Decomposition of Formaldehyde on Rutile TiO2(100)-(1x1).CHINESE JOURNAL OF CHEMICAL PHYSICS,31(4),547-554.
MLA Chen, Xiao,et al."Photoinduced Decomposition of Formaldehyde on Rutile TiO2(100)-(1x1)".CHINESE JOURNAL OF CHEMICAL PHYSICS 31.4(2018):547-554.
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