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DOI | 10.1126/science.aay3444 |
Chemical bond formation showing a transition from physisorption to chemisorption | |
Huber, Ferdinand1; Berwanger, Julian1; Polesya, Svitlana2; Mankovsky, Sergiy2; Ebert, Hubert2; Giessibl, Franz J.1 | |
2019-10-11 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 366期号:6462页码:235-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Surface molecules can transition from physisorption through weak van der Waals forces to a strongly bound chemisorption state by overcoming an energy barrier. We show that a carbon monoxide (CO) molecule adsorbed to the tip of an atomic force microscope enables a controlled observation of bond formation, including its potential transition from physisorption to chemisorption. During imaging of copper (Cu) and iron (Fe) adatoms on a Cu(111) surface, the CO was not chemically inert but transited through a physisorbed local energy minimum into a chemisorbed global minimum, and an energy barrier was seen for the Fe adatom. Density functional theory reveals that the transition occurs through a hybridization of the electronic states of the CO molecule mainly with s-, p(z)-, and d(z)(2)-type states of the Fe and Cu adatoms, leading to chemical bonding. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490014700042 |
WOS关键词 | ATOMIC-FORCE MICROSCOPY ; ADSORPTION ; RESOLUTION ; SURFACE ; CO ; MOLECULE ; ENERGY ; ORDER |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/202523 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Regensburg, Dept Phys, Inst Expt & Appl Phys, D-93040 Regensburg, Germany; 2.Ludwig Maximilians Univ Munchen, Dept Chem, D-81377 Munich, Germany |
推荐引用方式 GB/T 7714 | Huber, Ferdinand,Berwanger, Julian,Polesya, Svitlana,et al. Chemical bond formation showing a transition from physisorption to chemisorption[J]. SCIENCE,2019,366(6462):235-+. |
APA | Huber, Ferdinand,Berwanger, Julian,Polesya, Svitlana,Mankovsky, Sergiy,Ebert, Hubert,&Giessibl, Franz J..(2019).Chemical bond formation showing a transition from physisorption to chemisorption.SCIENCE,366(6462),235-+. |
MLA | Huber, Ferdinand,et al."Chemical bond formation showing a transition from physisorption to chemisorption".SCIENCE 366.6462(2019):235-+. |
条目包含的文件 | 条目无相关文件。 |
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