Моделювання Окиснення Чадного Газу на Поверхні Металевого Каталізатора: Тонка Структура Коливної Реакції

Iryna Ryzha; Petro Kostrobii

Modeling of Carbon Monoxide Oxidation on the Metal Catalyst Surface: Fine Structure of Oscillatory Reaction

Authors

Iryna Ryzha dept. of Applied Mathematics Lviv Polytechnic National University
Petro Kostrobii dept. of Applied Mathematics Lviv Polytechnic National University

Keywords:

reaction of catalytic oxidation, reaction-diffusion model, mathematical modeling of reaction-diffusion processes

Abstract

The two-dimensional mathematical model for carbon monoxide (СО) oxidation on the platinum (Pt) catalyst surface is investigated according to the Langmuir-Hinshelwood (LH) mechanism. The effects of the catalyst surface reconstruction processes and the substrate temperature are taken into account. It is shown that when two-dimensionality is accounted for, the dynamics of oxidation process changes and mixed mode oscillations (MMO) can be obtained.