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In Situ Studies on Temperature-Dependent Photocatalytic Reactions of Methanol on TiO2(110)
Zhang RD; Wang HC; Peng XX; 冯冉冉1,2,4); Liu AA; Guo Q; Zhou CY; Ma ZB; Yang XM; Jiang Y; Ren ZF
Corresponding AuthorMa, Zhibo(zhbma@dicp.ac.cn) ; Ren, Zefeng(zfren@dicp.ac.cn)
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2019-04-18
Volume123Issue:15Pages:9993-9999
ISSN1932-7447
AbstractWe studied the photocatalytic reaction of methanol on the TiO2(110) surface in situ by surface sum frequency generation vibrational spectroscopy. The in situ vibrational spectra of the photo-oxidation product, formaldehyde and methyl formate, on TiO2(110) was unambiguously assigned and identified. The temperature-dependent photocatalytic reaction efficiency was observed and suggested that the thermal diffusion might be important for the photocatalytic reaction. Scanning tunneling microscopy combined with ultraviolet light was used to investigate the photocatalytic reaction efficiency on the hydrox-ylated TiO2(110) surface, which shows that the neighboring hydroxyl group on the bridge-bonded oxygen site dramatically inhibits the photo oxidation of methanol because of the repulsion between hydroxyl groups. Our results provide direct vibrational spectral evidence of photo-oxidation products of methanol on TiO2(110), show the importance of thermal processes in surface photocatalytic reactions, and deepen our understanding on photochemistry on this surface.
DOI10.1021/acs.jpcc.9b02244
Indexed BySCI ; EI
Language英语
WOS IDWOS:000465488600041
WOS KeywordMETHYL FORMATE ; CHEMICAL-REACTIONS ; HYDROGEN-PRODUCTION ; ADSORPTION ; DISSOCIATION ; FORMALDEHYDE ; SURFACE ; RUTILE ; WATER ; 1ST-PRINCIPLES
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding ProjectMinistry of Science and Technology[2018YFA0208700] ; Ministry of Science and Technology[2016YFA0200602] ; Chinese Academy of Sciences[XDB17000000] ; National Natural Science Foundation of China[91645125] ; National Natural Science Foundation of China[21673236] ; National Natural Science Foundation of China[21688102] ; Youth Innovation Promotion Association of CAS[2017224]
Funding OrganizationMinistry of Science and Technology ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS
Classification二类/Q1
Ranking4
ContributorMa, Zhibo ; Ren, Zefeng
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80714
Collection国家微重力实验室
Recommended Citation
GB/T 7714
Zhang RD,Wang HC,Peng XX,et al. In Situ Studies on Temperature-Dependent Photocatalytic Reactions of Methanol on TiO2(110)[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2019,123(15):9993-9999.
APA Zhang RD.,Wang HC.,Peng XX.,冯冉冉1,2,4).,Liu AA.,...&Ren ZF.(2019).In Situ Studies on Temperature-Dependent Photocatalytic Reactions of Methanol on TiO2(110).JOURNAL OF PHYSICAL CHEMISTRY C,123(15),9993-9999.
MLA Zhang RD,et al."In Situ Studies on Temperature-Dependent Photocatalytic Reactions of Methanol on TiO2(110)".JOURNAL OF PHYSICAL CHEMISTRY C 123.15(2019):9993-9999.
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