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In Situ Studies on Temperature-Dependent Photocatalytic Reactions of Methanol on TiO2(110)
Zhang, Ruidan1,2,3; Wang, Haochen3; Peng, Xingxing1,2,3; Peng, Ran-ran1,2,4; Liu, An-an1,2; Guo, Qing3; Zhou, Chuanyao3; Ma, Zhibo3; Yang, Xueming3,5; Jiang, Ying1,2; Ren, Zefeng1,2,3
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 ; SCI
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
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80715
Collection国家微重力实验室
Corresponding AuthorMa, Zhibo; Ren, Zefeng
Affiliation1.Peking Univ, ICQM, 5 Yiheyuan Rd, Beijing 100871, Peoples R China
2.Peking Univ, Sch Phys, 5 Yiheyuan Rd, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China
4.Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab,Beijing Key Lab Engineered Con, Beijing 100190, Peoples R China
5.Southern Univ Sci & Technol, Dept Chem, 1088 Xueyuan Rd, Shenzhen 518055, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Ruidan,Wang, Haochen,Peng, Xingxing,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, Ruidan.,Wang, Haochen.,Peng, Xingxing.,Peng, Ran-ran.,Liu, An-an.,...&Ren, Zefeng.(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, Ruidan,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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