Highly oriented monolayer graphite formation on Pt(111) by a supersonic methane beam

被引：116

作者：

Ueta, H ^{[1
]}

Saida, M ^{[1
]}

Nakai, C ^{[1
]}

Yamada, Y ^{[1
]}

Sasaki, M ^{[1
]}

Yamamoto, S ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Appl Phys, Ctr Tsukuba Res Allience, Tsukuba, Ibaraki 3058573, Japan

来源：

SURFACE SCIENCE | 2004年 / 560卷 / 1-3期

关键词：

molecule-solid reactions; scanning tunneling microscopy; work function measurements; graphite; platinum; alkanes;

D O I：

10.1016/j.susc.2004.04.039

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 found that the surface reaction on Pt(1 1 1) induced by the collision of supersonic methane molecules with a sufficiently high kinetic energy (670 meV) results in huge domains of highly oriented monolayer graphite without any unidentified carbon-related materials, and that the monolayer graphite completely covers the Pt(1 1 1) surface. The mechanism is discussed in terms of the surface insensitivity of the collision-induced process and the thermal stability of the graphite with a specific superstructure. This implies the effectiveness of supersonic molecular beam to the practical surface modification. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：183 / 190

页数：8

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