Front dynamics in catalytic surface reactions

被引：5
|
作者：
Meron, E
Bär, M
Hagberg, A
Thiele, U
机构：
[1] Ben Gurion Univ Negev, Dept Solar Energy & Environm Phys, BIDR, IL-84990 Sede Boqer, Israel
[2] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel
[3] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany
[4] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA
[5] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[6] Univ Complutense Madrid, Inst Pluridisciplinar, E-28040 Madrid, Spain
来源：
CATALYSIS TODAY | 2001年 / 70卷 / 04期
关键词：
catalytic reaction; anisotropy; front instabilities; stratified chaos;
D O I：
10.1016/S0920-5861(01)00341-8
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A variety of pattern formation phenomena in catalytic surface reactions can be attributed to the dynamics of interfaces, or fronts, separating distinct uniform states. The states may represent surface coverages by different adsorbates or in the case of forced oscillations, different phases of oscillation. The dynamics of fronts are strongly affected by front instabilities and by diffusion anisotropy. We identify two new pattern formation mechanisms associated with different front behaviors in orthogonal directions: an ordering process by which stationary labyrinths in an isotropic system evolve into ordered stationary stripes, and confinement of isotropic spatiotemporal chaos to one space dimension, a state we term stratified chaos. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：331 / 340
页数：10
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