Carbon monoxide oxidation on the Pt-catalyst: modelling and stability

: pp. 96-106
Received: August 30, 2017
Lviv Polytechnic National University
Lviv Polytechnic National University

A two-dimensional mathematical model of carbon monoxide (CO) oxidation is investigated for the Langmuir-Hinshelwood mechanism on the surface of a Platinum (Pt) catalyst. The adsorbate-driven structural phase transition of catalytic surface is taken into account. The stability analysis of the model solutions is carried out. It is shown that the spatio-temporal periodic chemical oscillations of CO and oxygen (O) surface coverages and a fraction of the surface in the non-reconstructed $(1\times 1)$-structure occur. Conditions for Hopf and Turing bifurcation to arise are investigated.

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Math. Model. Comput. Vol.4, No.1, pp.96-106 (2017)