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Please use this identifier to cite or link to this item: https://dspace.ffh.bg.ac.rs/handle/123456789/2002
Title: On Oscillations and Noise in Multicomponent Adsorption: The Nature of Multiple Stationary States
Authors: Jakšić, Olga M.
Jakšić, Zoran
Rašljić, Milena B.
Kolar-Anić, Ljiljana 
Issue Date: 1-Jan-2019
Journal: Advances in Mathematical Physics
Abstract: 
Starting from the fact that monocomponent adsorption, whether modeled by Lagergren or nonlinear Riccati equation, does not sustain oscillations, we speculate about the nature of multiple steady state states in multicomponent adsorption with second-order kinetics and about the possibility that multicomponent adsorption might exhibit oscillating behavior, in order to provide a tool for better discerning possible oscillations from inevitable fluctuations in experimental results or a tool for a better control of adsorption process far from equilibrium. We perform an analysis of stability of binary adsorption with second-order kinetics in multiple ways. We address perturbations around the steady state analytically, first in a classical way, then by introducing Langevin forces and analyzing the reaction flux and cross-correlations, then by applying the stochastic chemical master equation approach, and finally, numerically, by using stochastic simulation algorithms. Our results show that stationary states in this model are stable nodes. Hence, experimental results with purported oscillations in response should be addressed from the point of view of fluctuations and noise analysis.
URI: https://dspace.ffh.bg.ac.rs/handle/123456789/2002
ISSN: 1687-9120
DOI: 10.1155/2019/7687643
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University of Belgrade
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University of Belgrade Faculty of Physical Chemistry