ABSTRACT
Fractal kinetics (FK) is a generalization of the classical kinetic reaction scheme in which the kinetic constant is no longer time independent. Classical reaction kinetics gives us a rate law that considers the change of the reactants/products of a reaction mechanism with time. FK is one approximate way to study reaction kinetics mechanisms in complex media. It is generally known that the reaction kinetics can be influenced by the transport properties of the reactants. Monte-Carlo simulations show that both first-order and second-order rate coefficients, as well as the fractal-kinetic parameter, are influenced by the density and size of obstacles. Fractal kinetics is one approximate way to study reaction kinetics mechanisms in complex media. The concept of ‘geometry-controlled kinetics’ is an emergent concept that introduces the initial distance between reactants as a key parameter to characterize the kinetics of diffusion-limited reactions. This concept is related to the spatial organization of reactants in complex systems.
