Title: Modeling of surface reactions mediated by bulk diffusion (Prof. Fernando P. Duda)

Abstract: The interplay between bulk diffusion and surface reactions underlies many complex behaviors, including spatiotemporal chemical oscillations, in chemical and biological systems. In this talk, we apply continuum methods to model this interplay under isothermal conditions. Specifically, by combining chemical species balances and constitutive equations consistent with a mechanical version of the second law of thermodynamics, we derive general equations governing bulk diffusion coupled with surface reactions and discuss how to recover some of the models that have been proposed in the literature. Finally, we explore one-dimensional examples for which the boundary conditions reduce to ordinary-differential equations familiar for van der Pol and Fitzhugh–Nagumo oscillators

Poster.locandina_Duda