Chemical Complexity via Simple Models

Noise-induced Chemical Chaos. Basic Kinetic Model and its Parametric Analysis

“…At present it is known that behaviour of chemical systems in a kinetic region can be quite complex (see e.g. [1][2][3][4][5]). In this paper we present a rather simple kinetic model which corresponds to a catalytic scheme of transformations under condition of small fluctuations of model parameters.…”

“…Stage 3) is a buffer stage. It is well known that kinetic model corresponding to (1) can have multiple steady states and oscillations even if A, B = const [1,2,4]. The oscillator is a more realistic scheme of transformations.…”

“…The oscillator is a more realistic scheme of transformations. For example, let us consider the following kinetic model [2,3]…”

“…where the buffer substance (P tCO) * is the tightly bound form of CO adsorption on the platinum surface. Together with (2) there is another kinetic model of catalytic hydrogen oxidation…”

“…The basic kinetic model that corresponds to scheme (3) is a trigger, that is, it is a system with three steady states, two of which are stable and the third is unstable. When parameters are changed (e.g., partial pressures of reactants O 2 , CO or H 2 ) the kinetic model can have multiple steady states or oscillations [1,2].…”