scholarly journals Mathematical model of carbon monoxide oxidation: influence of the catalyst surface structure

2018 ◽  
Vol 5 (2) ◽  
pp. 158-168 ◽  
Author(s):  
P. Kostrobij ◽  
◽  
I. Ryzha ◽  
B. Markovych ◽  
◽  
...  
2020 ◽  
Vol 8 (1) ◽  
pp. 116-124
Author(s):  
P. P. Kostrobij ◽  
◽  
I. A. Ryzha ◽  

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.


2008 ◽  
Vol 112 (47) ◽  
pp. 18521-18530 ◽  
Author(s):  
Elena R. Savinova ◽  
Francoise Hahn ◽  
Nicolas Alonso-Vante

Author(s):  
Petro Kostrobij ◽  
Iryna Ryzha

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.


ChemPhysChem ◽  
2009 ◽  
Vol 10 (15) ◽  
pp. 2719-2724 ◽  
Author(s):  
Masashi Nakamura ◽  
Yuto Hanioka ◽  
Wataru Ouchida ◽  
Mami Yamada ◽  
Nagahiro Hoshi

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