Facet Dependence of Photochemistry of Methanol on Single Crystalline Rutile Titania
文献类型：期刊论文
| 作者 | Dai, Dong-xu1; Hao, Qun-qing1; Wang, Zhi-qiang1; Mao, Xin-chun2; Yang, Xue-ming1; Zhou, Chuan-yao1 |
| 刊名 | CHINESE JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2016-02-01 |
| 卷号 | 29期号:1页码:105-111 |
| 关键词 | Tio2 Excited State Two-photon Photoemission Spectroscopy Reaction Rate Of Photooxidation |
| ISSN号 | 1674-0068 |
| DOI | 10.1063/1674-0068/29/cjcp1601005 |
| 文献子类 | Article |
| 英文摘要 | The crystal phase, morphology and facet significantly influence the catalytic and photocatalytic activity of TiO2. In view of optimizing the performance of catalysts, extensive efforts have been devoted to designing new sophisticate TiO2 structures with desired facet exposure, necessitating the understanding of chemical properties of individual surface. In this work, we have examined the photooxidation of methanol on TiO2(011)-(2 x 1) and TiO2(110)-(1 x 1) by two-photon photoemission spectroscopy (2PPE). An excited state at 2.5 eV above the Fermi level (E-F) on methanol covered (011) and (110) interface has been detected. The excited state is an indicator of reduction of TiO2 interface. Irradiation dependence of the excited resonance signal during the photochemistry of methanol on TiO2(011)-(2 x 1) and TiO2 (110)-(1 x 1) is ascribed to the interface reduction by producing surface hydroxyls. The reaction rate of photooxidation of methanol on TiO2(110)-(lx 1) is about 11.4 times faster than that on TiO2(011)-(2 x 1), which is tentatively explained by the difference in the surface atomic configuration. This work not only provides a detailed characterization of the electronic structure of methanol/TiO2 interface by 2PPE, but also shows the importance of the surface structure in the photoreactivity on TiO2. |
| WOS关键词 | MOLECULAR-HYDROGEN FORMATION ; SURFACE-STRUCTURE ; TIO2 SURFACES ; BAND-GAP ; WATER-OXIDATION ; TIO2(110) ; ANATASE ; PHOTOCATALYSIS ; EXCITATION ; DISSOCIATION |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000373211400014 |
| 出版者 | CHINESE PHYSICAL SOC |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170638]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Yang, Xue-ming; Zhou, Chuan-yao |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.China Acad Engn Phys, Inst Mat, Ctr Interface Dynam Sustainabil, Chengdu 610200, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Dong-xu,Hao, Qun-qing,Wang, Zhi-qiang,et al. Facet Dependence of Photochemistry of Methanol on Single Crystalline Rutile Titania[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2016,29(1):105-111. |
| APA | Dai, Dong-xu,Hao, Qun-qing,Wang, Zhi-qiang,Mao, Xin-chun,Yang, Xue-ming,&Zhou, Chuan-yao.(2016).Facet Dependence of Photochemistry of Methanol on Single Crystalline Rutile Titania.CHINESE JOURNAL OF CHEMICAL PHYSICS,29(1),105-111. |
| MLA | Dai, Dong-xu,et al."Facet Dependence of Photochemistry of Methanol on Single Crystalline Rutile Titania".CHINESE JOURNAL OF CHEMICAL PHYSICS 29.1(2016):105-111. |
入库方式： OAI收割
来源：大连化学物理研究所
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