Carbidic carbon on Ni(110): An STM study

被引：20

作者：

Klink, C ^{[1
]}

Stensgaard, I ^{[1
]}

Besenbacher, F ^{[1
]}

Laegsgaard, E ^{[1
]}

机构：

[1] AARHUS UNIV,INST PHYS & ASTRON,DK-800 AARHUS C,DENMARK

来源：

SURFACE SCIENCE | 1996年 / 360卷 / 1-3期

关键词：

carbon; catalysis; chemisorption; low index single crystal surfaces; nickel; scanning tunneling microscopy; surface relaxation and reconstruction;

D O I：

10.1016/0039-6028(96)00631-0

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：

The interaction of carbon with the Ni(110) surface has been investigated by scanning tunneling microscopy (STM). Dissociation of ethylene at elevated temperatures resulted in the formation of two carbidic carbon structures, (4 x 3) and (4 x 5), both of which are Formed by a significant reconstruction of the surface involving a long-range mass transport of similar to 0.5 ML. Ni. The density of C in the reconstructed phases was estimated based on Auger electron spectroscopy (AES). Atomic models, which are consistent with all existing experimental observations for carbidic carbon on Ni(110), are proposed for the (4 x 3) and (4 x 5) phases.

引用

页码：171 / 179

页数：9

共 27 条

[11] ADSORPTION OF CH4, C2H6 AND NEO-C5H12 ON (111), (100) AND (110) FACES OF NICKEL OBSERVED BY LEED AND BY PHOTOELECTRIC WORK-FUNCTION MEASUREMENT [J].