scholarly journals Two-Dimensional Mathematical Model for Carbon Monoxide Oxidation Process on the Platinum Catalyst Surface

2018 ◽  
Vol 12 (4) ◽  
pp. 451-455 ◽  
Author(s):  
Petro Kostrobii ◽  
◽  
Iryna Ryzha ◽  
Keyword(s):  
Mathematical Model ◽  
Carbon Monoxide ◽  
Oxidation Process ◽  
Catalyst Surface ◽  
Platinum Catalyst ◽  
Carbon Monoxide Oxidation ◽  
Two Dimensional

Stability of carbon monoxide oxidation process on gold nanoparticles

2020 ◽  
Vol 8 (1) ◽  
pp. 116-124
Author(s):  
P. P. Kostrobij ◽  
◽  
I. A. Ryzha ◽  
Keyword(s):  
Carbon Monoxide ◽  
Gold Nanoparticles ◽  
Reaction Mechanisms ◽  
Structural Changes ◽  
Oxidation Process ◽  
Lyapunov Method ◽  
Catalyst Surface ◽  
Carbon Monoxide Oxidation ◽  
One Step ◽  
The Stability

The stability conditions for mathematical models of carbon monoxide oxidation on the surface of gold nanoparticles are investigated. The cases of reaction mechanisms of one-step and step-by-step transformation of reagents are consecutively considered. Using the stability analysis by Lyapunov method, it is shown that models which take into account the possibility of structural changes of the catalyst surface can predict the occurrence of oscillatory mode in the system as a result of Hopf instability.

scholarly journals Numerical analysis of mathematical model for CO oxidation on platinum

2021 ◽  
pp. 165-169
Author(s):  
Petro Kostrobij ◽  
Iryna Ryzha
Keyword(s):  
Mathematical Model ◽  
Carbon Monoxide ◽  
Structural Changes ◽  
Diffusion Processes ◽  
Catalyst Surface ◽  
Pt Catalyst ◽  
Two Dimensional ◽  
Langmuir Hinshelwood Mechanism ◽  
And Diffusion ◽  
Oxygen Atoms

In the paper a study of a two-dimensional mathematical model of carbon monoxide oxidation on the Pt catalyst surface according to the Langmuir-Hinshelwood mechanism is presented. This model takes into account the nanoinhomogeneities of Pt(110) surface and diffusion processes of CO molecules and oxygen atoms adsorbed on the catalyst surface. It is shown that the structural changes of Pt(110) surface significantly affect the character of oscillatory mode of reaction, whereas the adsorbed oxygen atoms can be considered immobile.

Transient studies of carbon monoxide oxidation over platinum catalyst

1982 ◽  
Vol 120 (2) ◽  
pp. L453-L460 ◽  
Author(s):  
M.G. Goodman ◽  
M.B. Cutlip ◽  
C.N. Kenney ◽  
W. Morton ◽  
D. Mukesh
Keyword(s):  
Carbon Monoxide ◽  
Platinum Catalyst ◽  
Carbon Monoxide Oxidation

THE CARBON MONOXIDE OXIDATION ON A PLATINUM CATALYST

1976 ◽  
pp. 131-142 ◽  
Author(s):  
H.D. Cochran ◽  
R.G. Donnelly ◽  
M. Modell ◽  
R.F. Baddour
Keyword(s):  
Carbon Monoxide ◽  
Platinum Catalyst ◽  
Carbon Monoxide Oxidation

Tarnsient studies of carbon monoxide oxidation over platinum catalyst

1982 ◽  
Vol 120 (2) ◽  
pp. L453-L460
Author(s):  
M.G. Goodman ◽  
M.B. Cutlip ◽  
C.N. Kenney ◽  
W. Morton ◽  
D. Mukesh
Keyword(s):  
Carbon Monoxide ◽  
Platinum Catalyst ◽  
Carbon Monoxide Oxidation
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