Front dynamics in catalytic surface reactions

Ehud Meron; Markus Bär; Aric Hagberg; Uwe Thiele

doi:10.1016/S0920-5861(01)00341-8

Front dynamics in catalytic surface reactions

Ehud Meron, Markus Bär, Aric Hagberg, Uwe Thiele

Department of Physics

Research output: Contribution to journal › Conference article › peer-review

8 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	331-340
Number of pages	10
Journal	Catalysis Today
Volume	70
Issue number	4
DOIs	https://doi.org/10.1016/S0920-5861(01)00341-8
State	Published - 1 Nov 2001
Event	Spatiotemporal Catalytic Patterns (SHEINTUCH S.I.) - Haifa, Israel Duration: 15 Oct 2000 → 15 Oct 2000

Keywords

Anisotropy
Catalytic reaction
Front instabilities
Stratified chaos

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1016/S0920-5861(01)00341-8

Cite this

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title = "Front dynamics in catalytic surface reactions",

abstract = "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.",

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T1 - Front dynamics in catalytic surface reactions

AU - Meron, Ehud

AU - Bär, Markus

AU - Hagberg, Aric

AU - Thiele, Uwe

PY - 2001/11/1

Y1 - 2001/11/1

N2 - 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.

AB - 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.

KW - Anisotropy

KW - Catalytic reaction

KW - Front instabilities

KW - Stratified chaos

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DO - 10.1016/S0920-5861(01)00341-8

M3 - Conference article

AN - SCOPUS:0035497968

SN - 0920-5861

VL - 70

SP - 331

EP - 340

JO - Catalysis Today

JF - Catalysis Today

IS - 4

T2 - Spatiotemporal Catalytic Patterns (SHEINTUCH S.I.)

Y2 - 15 October 2000 through 15 October 2000

ER -

Front dynamics in catalytic surface reactions

Abstract

Keywords

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