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题名: Controlled Vacancy-Assisted C-C Couplings of Acetaldehyde on Rutile TiO2(110)
作者: Yang, Wenshao1;  Geng, Zhenhua1;  Xu, Chenbiao1;  Guo, Qing1;  Dai, Dongxu1;  Yang, Xueming1
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2014-12-04
DOI: 10.1021/jp509091a
卷: 118, 期:48, 页:27920-27924
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: Reductive CC coupling of acetaldehyde (CH3CHO) on rutile TiO2(110) surface with controlled oxygen vacancy coverage was investigated by temperature-programmed desorption (TPD). Two main reaction products, 2-butanone and butene, have been detected. Experimental results suggest that the two products are produced via two distinctive vacancy-assisted CC couplings on the surface. The 2-butanone product is produced via the reductive CC coupling of CH3CHO on reduced rutile TiO2(110) in which one CH3CHO molecule adsorbed on the five coordinated Ti site (Ti(5)c) and the other on a nearby bridge-bonded oxygen (BBO) vacancy site; while butene is produced from the self-coupling of two CH3CHO molecules adsorbed on two adjacent BBO vacancy sites. The results of this work indicate that surface vacancy plays a key role in the CC coupling reactions of CH3CHO.
关键词[WOS]: CARBON BOND FORMATION ;  SURFACE SCIENCE ;  TIO2 PHOTOCATALYSIS ;  GAS SENSOR ;  FORMALDEHYDE ;  WATER ;  TPD
语种: 英语
WOS记录号: WOS:000345891900037
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145630
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.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Yang, Wenshao,Geng, Zhenhua,Xu, Chenbiao,et al. Controlled Vacancy-Assisted C-C Couplings of Acetaldehyde on Rutile TiO2(110)[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2014,118(48):27920-27924.
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