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学科主题物理化学
Photoinduced Decomposition of Formaldehyde on a TiO2(110) Surface, Assisted by Bridge-Bonded Oxygen Atoms
Xu, Chenbiao1; Yang, Wenshao1; Guo, Qing1; Dai, Dongxu1; Minton, Timothy K.1,2; Yang, Xueming1; Guo Q(郭庆); Yang XM(杨学明)
刊名JOURNAL OF PHYSICAL CHEMISTRY LETTERS
2013-08-15
DOI10.1021/jz401349q
4期:16页:2668-2673
收录类别SCI
合作性质
文章类型Article
部门归属11
项目归属1102
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences ; Technology
资助者1,1 ; 1,1 ; 1,1 ; 1,1
类目[WOS]Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]FORMIC-ACID ; LATTICE OXYGEN ; PHOTOCATALYTIC DECOMPOSITION ; TIO2 PHOTOCATALYSIS ; ALIPHATIC-ALCOHOLS ; TITANIUM-DIOXIDE ; RUTILE TIO2(110) ; OXIDE SURFACES ; THIN-FILM ; ADSORPTION
英文摘要We have investigated the photoinduced decomposition of formaldehyde (CH2O) on TiO2(110) at 400 nm using temperature-programmed desorption. Formate (HCOO), methyl radicals (CH3), and ethylene (C2H4) have been detected, while no evidence of polymerization of CH2O was found. The initial step in the decomposition of CH2O on TiO2(110) is the formation of a dioxymethylene intermediate in which the carbonyl O atom of CH2O is bound both to a Ti atom on the five-fold-coordinated lattice site (Ti-5C) and to a nearby bridge-bonded oxygen (BBO) atom. During 400 nm irradiation, the dioxymethylene intermediate can transfer methylene to the bridging oxygen row and break the C-O bond, thus leaving the original carbonyl O atom on the Ti-5C site. After this transfer of methylene, several pathways to products are available. Thus we have found that BBO atoms are intimately involved in the photoinduced decomposition of CH2O on TiO2(110).
语种英语
资助者1,1 ; 1,1 ; 1,1 ; 1,1
原文出处查看原文
WOS记录号WOS:000323300900012
引用统计
被引频次:32[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119676
专题中国科学院大连化学物理研究所
通讯作者Guo Q(郭庆); Yang XM(杨学明)
作者单位1.Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China
2.Montana State Univ, Dept Chem & Biochem, Bozeman, MT 59717 USA
推荐引用方式
GB/T 7714
Xu, Chenbiao,Yang, Wenshao,Guo, Qing,et al. Photoinduced Decomposition of Formaldehyde on a TiO2(110) Surface, Assisted by Bridge-Bonded Oxygen Atoms[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2013,4(16):2668-2673.
APA Xu, Chenbiao.,Yang, Wenshao.,Guo, Qing.,Dai, Dongxu.,Minton, Timothy K..,...&杨学明.(2013).Photoinduced Decomposition of Formaldehyde on a TiO2(110) Surface, Assisted by Bridge-Bonded Oxygen Atoms.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,4(16),2668-2673.
MLA Xu, Chenbiao,et al."Photoinduced Decomposition of Formaldehyde on a TiO2(110) Surface, Assisted by Bridge-Bonded Oxygen Atoms".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 4.16(2013):2668-2673.
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