Diffusion of Formaldehyde on Rutile TiO2(110) Assisted by Surface Hydroxyl Groups
文献类型：期刊论文
| 作者 | Guan, Da-wei1,2,3,4; Wang, Rui-min2,3; Jin, Xian-chi2,3; Dai, Dong-xu2; Ma, Zhi-bo2; Fan, Hong-jun2; Yang, Xue-ming1,2,4 |
| 刊名 | CHINESE JOURNAL OF CHEMICAL PHYSICS
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 30期号:3页码:253-258 |
| 关键词 | Diffusion Desorption Formaldehyde Scanning Tunneling Microscope |
| DOI | 10.1063/1674-0068/30/cjcp1703030 |
| 英文摘要 | As the photo-dissociation product of methanol on the TiO2(110) surface, the diffusion and desorption processes of formaldehyde (HCHO) were investigated by using scanning tunneling microscope (STM) and density functional theory (DFT). The molecular-level images revealed the HCHO molecules could diffuse and desorb on the surface at 80 K under UV laser irradiation. The diffusion was found to be mediated by hydrogen adatoms nearby, which were produced from photodissociation of methanol. Diffusion of HCHO was significantly decreased when there was only one H adatom near the HCHO molecule. Furthermore, single HCHO molecule adsorbed on the bare TiO2(110) surface was quite stable, little photo-desorption was observed during laser irradiation. The mechanism of hydroxyl groups assisted diffusion of formaldehyde was also investigated using theoretical calculations. |
| 语种 | 英语 |
| WOS记录号 | WOS:000405446400003 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/152046]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guan, Da-wei,Wang, Rui-min,Jin, Xian-chi,et al. Diffusion of Formaldehyde on Rutile TiO2(110) Assisted by Surface Hydroxyl Groups[J]. CHINESE JOURNAL OF CHEMICAL PHYSICS,2017,30(3):253-258. |
| APA | Guan, Da-wei.,Wang, Rui-min.,Jin, Xian-chi.,Dai, Dong-xu.,Ma, Zhi-bo.,...&Yang, Xue-ming.(2017).Diffusion of Formaldehyde on Rutile TiO2(110) Assisted by Surface Hydroxyl Groups.CHINESE JOURNAL OF CHEMICAL PHYSICS,30(3),253-258. |
| MLA | Guan, Da-wei,et al."Diffusion of Formaldehyde on Rutile TiO2(110) Assisted by Surface Hydroxyl Groups".CHINESE JOURNAL OF CHEMICAL PHYSICS 30.3(2017):253-258. |
入库方式： OAI收割
来源：大连化学物理研究所
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