scholarly journals Self-sustained kinetic oscillations in CO oxidation over silica-supported Pt

2006 ◽  
Vol 8 (23) ◽  
pp. 2703 ◽  
Author(s):  
Per-Anders Carlsson ◽  
Vladimir P. Zhdanov ◽  
Magnus Skoglundh
Keyword(s):  
Co Oxidation ◽  
Kinetic Oscillations

Kinetic oscillations in the catalytic CO oxidation on Pt(100): Experiments

1986 ◽  
Vol 84 (6) ◽  
pp. 3519-3534 ◽  
Author(s):  
R. Imbihl ◽  
M. P. Cox ◽  
G. Ertl
Keyword(s):  
Co Oxidation ◽  
Catalytic Co Oxidation ◽  
Kinetic Oscillations

Effect of inert sites on the kinetic oscillations in the catalytic CO oxidation on Pt(100)

1998 ◽  
Vol 109 (19) ◽  
pp. 8617-8625 ◽  
Author(s):  
Francisco Chávez ◽  
Luis Vicente ◽  
Aurélien Perera ◽  
Michel Moreau
Keyword(s):  
Co Oxidation ◽  
Catalytic Co Oxidation ◽  
Kinetic Oscillations

Kinetic oscillations in the rate of CO oxidation on Pd(110)

1989 ◽  
Vol 210 (3) ◽  
pp. L198-L208
Author(s):  
M. Ehsasi ◽  
C. Seidel ◽  
H. Ruppender ◽  
W. Drachsel ◽  
J.H. Block ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Kinetic Oscillations

OSCILLATIONS IN CATALYTIC REACTIONS: CARBON MODEL WITH ADSORBATE–ADSORBATE LATERAL INTERACTIONS

2001 ◽  
Vol 08 (01n02) ◽  
pp. 51-59 ◽  
Author(s):  
V. P. ZHDANOV
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Co Oxidation ◽  
Carbon Deposition ◽  
Catalyst Surface ◽  
Catalytic Reactions ◽  
Lateral Interactions ◽  
Carbon Removal ◽  
Kinetic Oscillations ◽  
And Diffusion

We present Monte Carlo simulations of kinetic oscillations in CO oxidation on Pt in the framework of the model including carbon deposition on and removal from the catalyst surface. Some of the elementary reaction steps (such as carbon removal and diffusion) are considered to be dependent on adsorbate–adsorbate lateral interactions. The results obtained indicate that the lateral interactions may play a key role in kinetic oscillations. In particular, the interactions may result in the appearance of oscillations and also in their suppression. The former takes place if the interactions form a feedback between the high and low reactive states of the bistable catalytic cycle. The latter may be connected, for example, with the formation of carbon islands on the surface.

TURING STRUCTURES IN CATALYTIC SURFACE REACTIONS: THE FACETTING OF Pt(110) IN CO + O2

1992 ◽  
Vol 06 (09) ◽  
pp. 493-505 ◽  
Author(s):  
R. IMBIHL
Keyword(s):  
Phase Transition ◽  
Co Oxidation ◽  
Dissipative Structure ◽  
Surface Reaction ◽  
Surface Phase ◽  
Microscopic Description ◽  
Catalytic Co Oxidation ◽  
Kinetic Oscillations ◽  
Langmuir Hinshelwood Mechanism ◽  
Turing Structures

Exposing a Pt(110) surface to catalytic CO oxidation causes the development of a regular facet pattern of microscopic dimensions which has been identified as a dissipative structure of the Turing type. The primary step in the facetting process is considered to be the [Formula: see text] phase transition which is also responsible for the occurrence of kinetic oscillations in the same system. This interpretation was confirmed in a Monte Carlo simulation which was based on the Langmuir-Hinshelwood mechanism of catalytic CO oxidation and the properties of the surface phase transition. Thus a detailed microscopic description is available for the process by which a Turing structure is formed during a surface reaction.

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