CARBON ON PLATINUM - WORK FUNCTION CHANGES CAUSED BY ATOMIC CARBON AND BY 2-DIMENSIONAL GRAPHITE ISLANDS

被引：18

作者：

LI, XQD

RADOJICIC, T

VANSELOW, R

机构：

[1] UNIV WISCONSIN,DEPT CHEM,MILWAUKEE,WI 53201

[2] UNIV WISCONSIN,SURFACE STUDIES LAB,MILWAUKEE,WI 53201

来源：

SURFACE SCIENCE | 1990年 / 225卷 / 1-2期

关键词：

D O I：

10.1016/0039-6028(90)90415-5

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：

Carbon monoxide thermally dissociates in the kinked areas of a rounded Pt single crystal. The created C atoms cause a work function increase (Δφ = + 0.04 eV ({430}) to + 0.14 eV ({210}); experimental error in Δφ: ± 0.02 eV), which appears to depend linearly on the areas' kink densities. The surface dipole moment, μ(C/Pt), is roughly 0.1 ± 0.02 D. Beginning at about 850 K, C atoms form 2D graphite islands. These islands cause a work function decrease (Δφ = -1.58 eV ({210})). © 1990.

引用

页码：L29 / L32

页数：4

共 21 条

[1]

[Anonymous], 1981, CHEM 2 DIMENSIONS SU

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