SciELO - Scientific Electronic Library Online

 
vol.28 número3Preparation of zinc peroxide nanoparticles by laser ablation of solid in liquidsSíntesis y caracterización de silicato mesoporoso modificado con circonio y sulfato índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Superficies y vacío

versión impresa ISSN 1665-3521

Resumen

ALAS, S. J.. Estudio del efecto de impurezas sobre el comportamiento oscilatorio y espacial en la reacción CO + NO en Pt(100) por Monte Carlo dinámico. Superf. vacío [online]. 2015, vol.28, n.3, pp.78-85. ISSN 1665-3521.

A dynamic Monte Carlo simulation is proposed to explore the effect of inert surface impurities on the oscillatory behavior and pattern formation in the NO reduction by CO on Pt(100) surface at ultra high vacuum conditions (UHV) and relatively high temperature conditions. In this study was found that sustained oscillations change into a damped one and the spatial patterns, in this case cell type, are broken when the amount of impurities increases. This occurs mainly because the amount of the adsorbed species clusters decreases, the dissociation of adsorbed NO is slow and the diffusive movement of the adsorbed species is delayed.

Palabras clave : Pt(100) Surface; NO reduction; Oscillations; Pattern formation; Impurities; Dynamic Monte Carlo.

        · resumen en Español     · texto en Español     · Español ( pdf )