title: Adsorption-desorption processes of polydisperse mixtures on a triangular lattice.
abstract: Adsorption-desorption processes of polydisperse mixtures on a triangular lattice are studied by numerical simulations. Mixtures are composed of the shapes of different numbers of segments and rotational symmetries. Numerical simulations are performed to determine the influence of the number of mixture components and the length of the shapes making the mixture on the kinetics of the deposition process. We find that, above the jamming limit, the time evolution of the total coverage of a mixture can be described by the Mittag-Leffler function θ(t)=θ∞-ΔθE[-(t/τ)β] for all the mixtures we have examined. Our results show that the equilibrium coverage decreases with the number of components making the mixture and also with the desorption probability, via corresponding stretched exponential laws. For the mixtures of equal-sized objects, we propose a simple formula for predicting the value of the steady-state coverage fraction of a mixture from the values of the steady-state coverage fractions of pure component shapes.
authors: Faculty of Metallurgy and Materials, University of Zenica, Bosnia and Herzegovina.
authors: D
authors: D
authors: Dujak
authors: Faculty of Engineering, Trg D. Obradovića 6, Novi Sad 21000, Serbia.
authors: I
authors: I
authors: Lončarević
authors: Faculty of Engineering, Trg D. Obradovića 6, Novi Sad 21000, Serbia.
authors: Lj
authors: Lj
authors: Budinski-Petković
authors: Institute of Physics, P.O. Box 68, Zemun 11080, Belgrade, Serbia.
authors: S B
authors: SB
authors: Vrhovac
authors: Faculty of Metallurgy and Materials, University of Zenica, Bosnia and Herzegovina.
authors: A
authors: A
authors: Karač
mesh_terms: D000327:Adsorption; D007700:Kinetics; D008962:Models, Theoretical; D009010:Monte Carlo Method