INVESTIGADORES
RAMIREZ PASTOR Antonio Jose
artículos
Título:
Random sequential adsorption of polyatomic species on fractal substrates
Autor/es:
CORNETTE V.; RAMIREZ PASTOR A. J.; NIETO F.
Revista:
PHYSICAL REVIEW E
Editorial:
AMER PHYSICAL SOC
Referencias:
Año: 2011 vol. 83 p. 51119 - 51129
ISSN:
1539-3755
Resumen:
Random sequential adsorption of k-mers of different sizes and shapes deposited on two
types of fractal surfaces (deterministic and staistical) is studied. These
kinds of substrates present intrinsic heterogeneities. As a consequence, the
average coordination number depends on the topology that characterizes the
adsorbent. For discrete models, at the late stage the surface coverage evolves
according to θ(t ) = θj − Aexp[− t/σ ], where θj is the jamming coverage while A and σ are
fitting parameters. A detailed analysis of how these main quantities [θj , σ] depend on the relationship between the geometry of the adsorbate and
the adsorbent is presented. The results obtained suggest that the symmetry of
the substrate may exert a decisive influence on the adsorption kinetics of
polyatomic species.