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学科主题: 物理化学
题名: Molecular Hydrogen Formation from Photocatalysis of Methanol on TiO2(110)
作者: Xu, Chenbiao1, 2;  Yang, Wenshao1;  Guo, Qing1;  Dai, Dongxu1;  Chen, Maodu2;  Yang, Xueming1
通讯作者: 郭庆 ;  杨学明
刊名: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
发表日期: 2013-07-17
DOI: 10.1021/ja4030963
卷: 135, 期:28, 页:10206-10209
收录类别: SCI
文章类型: Article
部门归属: 11
项目归属: 1102
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: It is well established that adding methanol to water could significantly enhance H-2 production by TiO2. Recently, we have found that methanol can be photocatalytically dissociated on TiO2(110) at 400 nm via a stepwise mechanism. However, how molecular hydrogen can be formed from the photocatalyzed methanol/TiO2(110) surface is still not clear. In this work, we have investigated deuterium formation from photocatalysis of the fully deuterated methanol (CD3OD) on TiO2(110) at 400 nm using a temperature programmed desorption (TPD) technique. Photocatalytic dissociation products formaldehyde (CD2O) and O-atoms on BBO sites (via D2O TPD product) have been detected. In addition to D2O formation by heating the photocatalyzed methanol/TiO2(110) surface, we have also observed D-2 product formation. O-2 is dearly formed via thermal recombination of the O-atoms on the BBO sites from photocatalysis of methanol. Experimental results indicate that D2O formation is more important than D-2 formation and that D-2 formation is clearly affected by the D2O formation process.
关键词[WOS]: RUTILE TIO2(110) ;  SURFACE SCIENCE ;  METHYL FORMATE ;  TIO2 110 ;  DEFECTIVE TIO2(110) ;  GAS-PHASE ;  WATER ;  ADSORPTION ;  DISSOCIATION ;  PHOTOCHEMISTRY
语种: 英语
WOS记录号: WOS:000322103000007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117647
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
2.Dalian Univ Technol, Sch Phys & Optoelect Engn, Dalian 116024, Peoples R China

Recommended Citation:
Xu, Chenbiao,Yang, Wenshao,Guo, Qing,et al. Molecular Hydrogen Formation from Photocatalysis of Methanol on TiO2(110)[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2013,135(28):10206-10209.
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