中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Site-specific photocatalytic splitting of methanol on TiO2(110)
作者: Zhou, Chuanyao1;  Ren, Zefeng1;  Tan, Shijing1;  Ma, Zhibo1;  Mao, Xinchun1;  Dai, Dongxu1;  Fan, Hongjun1;  Yang, Xueming1;  LaRue, Jerry2;  Cooper, Russell2;  Wodtke, Alec M.2;  Wang, Zhuo3;  Li, Zhenyu3;  Wang, Bing3;  Yang, Jinlong3;  Hou, Jianguo3
刊名: CHEMICAL SCIENCE
发表日期: 2010-11-01
DOI: 10.1039/c0sc00316f
卷: 1, 期:5, 页:575-580
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Clean hydrogen production is highly desirable for future energy needs, making the understanding of molecular-level phenomena underlying photocatalytic hydrogen production both fundamentally and practically important. Water splitting on pure TiO2 is inefficient, however, adding sacrificial methanol could significantly enhance the photocatalyzed H-2 production. Therefore, understanding the photochemistry of methanol on TiO2 at the molecular level could provide important insights to its photocatalytic activity. Here, we report the first clear evidence of photocatalyzed splitting of methanol on TiO2 derived from time-dependent two-photon photoemission (TD-2PPE) results in combination with scanning tunneling microscopy (STM). STM tip induced molecular manipulation before and after UV light irradiation clearly reveals photocatalytic bond cleavage, which occurs only at Ti4+ surface sites. TD-2PPE reveals that the kinetics of methanol photodissociation is clearly not of single exponential, an important characteristic of this intrinsically heterogeneous photoreaction.
关键词[WOS]: ELECTRONIC-STRUCTURE ;  X-1 SURFACE ;  TIO2 110 ;  DYNAMICS ;  ADSORPTION ;  WATER ;  PHOTOEMISSION ;  OXYGEN ;  DISSOCIATION ;  MOLECULES
语种: 英语
WOS记录号: WOS:000283974200005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141924
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China
2.Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
3.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

Recommended Citation:
Zhou, Chuanyao,Ren, Zefeng,Tan, Shijing,et al. Site-specific photocatalytic splitting of methanol on TiO2(110)[J]. CHEMICAL SCIENCE,2010,1(5):575-580.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Zhou, Chuanyao]'s Articles
 [Ren, Zefeng]'s Articles
 [Tan, Shijing]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Zhou, Chuanyao]‘s Articles
 [Ren, Zefeng]‘s Articles
 [Tan, Shijing]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Powered by CSpace