DICP OpenIR
Subject Area物理化学
Surface Photocatalysis-TPD Spectrometer for Photochemical Kinetics
Ren, Ze-feng1; Guo, Qing1; Xu, Chen-biao1,2; Yang, Wen-shao1; Xiao, Chun-lei1; Dai, Dong-xu1; Yang, Xue-ming1; Yang XM(杨学明)
KeywordTemperature Programmed Desorption Time Of Flight Spectrum Surface Photochemical Kinetics
Source PublicationCHINESE JOURNAL OF CHEMICAL PHYSICS
2012-10-01
DOI10.1088/1674-0068/25/05/507-512
Volume25Issue:5Pages:507-512
Indexed BySCI
SubtypeArticle
Department11
Funding Project1102
Contribution Rank1,1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectPhysics, Atomic, Molecular & Chemical
WOS Research AreaPhysics
WOS KeywordULTRAHIGH-VACUUM ; DESORPTION ; WATER ; ADSORPTION ; TIO2(110) ; AG(111) ; DISSOCIATION ; CHEMISTRY ; HYDROGEN ; METHANOL
AbstractA surface photocatalysis-TPD apparatus devoted to studying kinetics and mechanism of photocatalytic processes with various signal crystal surfaces has been constructed. Extremely high vacuum (similar to 0.2 nPa) in the ionization region is obtained by using multiple ultrahigh vacuum pumps. Compared with similar instruments built previously by others, the H-2, CH4 background in the ionization region can be reduced by about two orders of magnitude, and other residual gases in the ionization region can be reduced by about an order of magnitude. Therefore, the signal-to-noise ratio for the temperature programmed desorption (TPD) and time of flight (TOF) spectra is substantially enhanced, making experimental studies of photocatalytic processes on surfaces much easier. In this work, we describe the new apparatus in detail and present some preliminary studies on the photo-induced oxygen vacancy defects on TiO2(110) at 266 nm by using the TPD and TOF methods. Preliminary results suggest that the apparatus is a powerful tool for studying kinetics and mechanism of photochemical processes.
Language英语
WOS IDWOS:000311582400001
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/117948
Collection中国科学院大连化学物理研究所
Corresponding AuthorYang XM(杨学明)
Affiliation1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
Recommended Citation
GB/T 7714
Ren, Ze-feng,Guo, Qing,Xu, Chen-biao,et al. Surface Photocatalysis-TPD Spectrometer for Photochemical Kinetics[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2012,25(5):507-512.
APA Ren, Ze-feng.,Guo, Qing.,Xu, Chen-biao.,Yang, Wen-shao.,Xiao, Chun-lei.,...&杨学明.(2012).Surface Photocatalysis-TPD Spectrometer for Photochemical Kinetics.CHINESE JOURNAL OF CHEMICAL PHYSICS,25(5),507-512.
MLA Ren, Ze-feng,et al."Surface Photocatalysis-TPD Spectrometer for Photochemical Kinetics".CHINESE JOURNAL OF CHEMICAL PHYSICS 25.5(2012):507-512.
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