GSTDTAP  > 地球科学
DOI10.1126/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
ISSN0036-8075
EISSN1095-9203
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
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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-+.
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