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A mathematical model of the oscillatory regimes of CO oxidation over plantinum-group metal catalysts are discussed. The model is based on nonstationary diffusion equation containing a nonlinear term related to Michaelis-Menten kinetics of the enzymatic reaction. This paper presents the analytical and numerical solution of the system of non-linear differential equations. Here the Homotopy perturbation method HPM is used to find out the analytical expressions of the concentration of CO molecules, O atom and oxide oxygen respectively. A comparison of the analytical approximation and numerical simulation is also presented. A good agreement between theoretical and numerical results is observed.

KEYWORDS

Oscillatory Dynamics; Reaction-Diffusion; Boundary Value Problems; Homotopy Perturbation Method

Cite this paper

Thangapandi, C. and Rajendran, L. 2013 Analytical expression of concentrations of adsorbed CO molecules, O atoms and oxide oxygen. Natural Science, 5, 326-332. doi: 10.4236-ns.2013.53045.





Autor: Chinnasamy Thangapandi, Lakshmanan Rajendran

Fuente: http://www.scirp.org/



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