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Diffusion-driven instabilities in the BT-GN oscillatory carbonylation reaction network

Lookup NU author(s): Professor Katarina NovakovicORCiD

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Abstract

© 2024 Author(s).This study explores the role of diffusion in creating instabilities in the Bruk Temkin-Gorodsky Novakovic (BT-GN) oscillatory carbonylation reaction network. Stoichiometric network analysis and numerical methods revealed the presence of two destabilizing feedback cycles responsible for these instabilities. Analysis of a spatially uniform system showed that the saddle-node bifurcation can be simulated within the reaction network. The introduction of diffusion results in two types of instabilities: one occurs when a spatially uniform system is already unstable, leading to a reaction-diffusion front; and another involves diffusion-driven instabilities where introducing diffusion destabilizes a stable spatially uniform system. Slower PdI2 diffusion plays a key role in inducing these instabilities. Equations describing conditions for the emergence of the instabilities in both cases were derived.

Publication metadata

Author(s): Macesic S, Novakovic K

Publication type: Article

Publication status: Published

Journal: Chaos

Year: 2024

Volume: 34

Issue: 7

Online publication date: 24/07/2024

Acceptance date: 01/07/2024

Date deposited: 05/08/2024

ISSN (print): 1054-1500

ISSN (electronic): 1089-7682

Publisher: American Institute of Physics

URL: https://doi.org/10.1063/5.0211536

DOI: 10.1063/5.0211536

Data Access Statement: The data that support the findings of this study are available within the article and its supplementary material.

PubMed id: 39047161

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