DICP OpenIR
Highly Efficient Water Dissociation on Anatase TiO2(101)
Geng, Zhenhua1,2; Chen, Xiao1,2; Yang, Wenshao1; Guo, Qing1; Xu, Chenbiao1; Dai, Dongxu1; Yang, Xueming1
Source PublicationJournal of Physical Chemistry C
2016-12-01
DOI10.1021/acs.jpcc.6b07774
Volume120Issue:47Pages:26807-26813
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS KeywordPHOTOCATALYTIC TIO2 SURFACES ; LASER-INDUCED-FLUORESCENCE ; TITANIUM-DIOXIDE ; ADSORBED WATER ; VISIBLE-LIGHT ; TRAPPED HOLES ; O-2 ; PHOTOOXIDATION ; REACTIVITY ; 1ST-PRINCIPLES
AbstractPhotoinduced water dissociation on anatase-TiO2(101) has been investigated using a laser surface photolysis technique, in combination with temperature programmed desorption and time-of-flight methods. Gaseous OH radicals have been clearly detected by the time-of-flight method during laser irradiation. Further result reveals that the water dissociation reaction occurs most likely via transferring a H atom to a two coordinated oxygen site nearby and ejecting an OH radical to the gas phase. As the water coverage increases, the yield of the water dissociation reaction is also enhanced, whereas the dissociation probability of water is nearly the same at different water coverages. In comparison with water dissociation on rutile-TiO2(110) where the dissociation probability of water is largely inhibited by the strong hydrogen bonds at high water coverage, the reaction on anatase-TiO2(101) is considerably more efficient at high water coverage, which is most likely due to the much weaker interaction between water molecules on the surface. This provides an important clue that strong hydrogen bond interaction should be avoided on a good photocatalyst for water dissociation.
Language英语
WOS IDWOS:000389161300023
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/150417
Collection中国科学院大连化学物理研究所
Affiliation1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, 457 Zhongshan Rd, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Geng, Zhenhua,Chen, Xiao,Yang, Wenshao,et al. Highly Efficient Water Dissociation on Anatase TiO2(101)[J]. Journal of Physical Chemistry C,2016,120(47):26807-26813.
APA Geng, Zhenhua.,Chen, Xiao.,Yang, Wenshao.,Guo, Qing.,Xu, Chenbiao.,...&Yang, Xueming.(2016).Highly Efficient Water Dissociation on Anatase TiO2(101).Journal of Physical Chemistry C,120(47),26807-26813.
MLA Geng, Zhenhua,et al."Highly Efficient Water Dissociation on Anatase TiO2(101)".Journal of Physical Chemistry C 120.47(2016):26807-26813.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Geng, Zhenhua]'s Articles
[Chen, Xiao]'s Articles
[Yang, Wenshao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Geng, Zhenhua]'s Articles
[Chen, Xiao]'s Articles
[Yang, Wenshao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Geng, Zhenhua]'s Articles
[Chen, Xiao]'s Articles
[Yang, Wenshao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.