SPATIAL PATTERN-FORMATION IN A CATALYTIC SURFACE-REACTION - THE FACETING OF PT(110) IN CO+O2

被引：75
作者：
FALTA, J
IMBIHL, R
HENZLER, M
机构：
[1] Institut Fr Festkörperphysik, Universität Hannover, D-3000 Hannover 1
[2] Fritz-Haber-Institute der Max-Planck-Gesellschaft, D-1000 Berlin 33
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 12期
关键词：
D O I：
10.1103/PhysRevLett.64.1409
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A detailed LEED beam profile analysis of the structural changes induced by the catayltic CO oxidation on Pt(110) has been carried out with a high-resolution instrument (SPALEED). Under conditions where the 1×21×1 phase transition also takes place one observes spatial pattern formation via a faceting process. Facts of roughly uniform size and orientation build up a regular array characterized by a lateral periodicity of 70 lattice units along [110]. The mechanism is discussed in terms of a nonequilibrium structure arising from kinetic instabilities. © 1990 The American Physical Society.
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页码：1409 / 1412
页数：4
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