Investigation of furan on vicinal Pd(111) by scanning tunneling microscopy

被引：20

作者：

Loui, A ^{[1
]}

Chiang, S ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

来源：

APPLIED SURFACE SCIENCE | 2004年 / 237卷 / 1-4期

关键词：

scanning tunneling microscopy; furan; palladium; adsorption; low-index surfaces; vicinal surfaces; aromatic heterocompounds;

D O I：

10.1016/j.apsusc.2004.06.088

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have used scanning tunneling microscopy to image furan adsorbed on vicinal Pd(1 1 1) at temperatures below the onset of decomposition of the furan molecule. Studies conducted on two substrates with relatively narrow and wide terraces reveal strikingly different behaviors. Adsorbates on narrow vicinal planes are mobile at 225 K, while a scattered cluster distribution is observed on broader vicinal planes at comparable temperatures. Both surfaces exhibit upper step edges that are densely populated with furan molecules, which qualitatively match predicted STM images of furan generated from extended Huckel theory. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：559 / 564

页数：6

共 34 条

[1]

[Anonymous], COMMUNICATION

[2] Furan decomposes on Pd(111) at 300 K to form H and CO plus C3H3, which can dimerize to benzene at 350 K [J].