title: On one dimensional chemical diode and frequency generator constructed with an excitable surface reaction.
abstract: The oxidation of carbon monoxide on a Pt(110) surface is considered as a medium for chemical information processing in which bits of information are represented by traveling pulses of high oxygen coverage. Using numerical simulations for a model of CO oxidation we demonstrate that in such system one dimensional chemical signal diode can be realized by setting a proper profile of temperature. We also show that a pulse splitting can occur on a temperature inhomogeneity. The phenomenon of pulse splitting can be used to construct one dimensional generator of a train of pulses with adjustable frequency.
authors.affiliation: Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 36/42, 02-668, Warsaw, Poland. gorec@ifpan.edu.pl
authors.forename: J
authors.initials: J
authors.lastname: Gorecka
authors.forename: J
authors.initials: J
authors.lastname: Gorecki
mesh_terms: D002248:Carbon Monoxide / Q000737:chemistry*; D003198:Computer Simulation; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry; D010984:Platinum / Q000737:chemistry*; D013696:Temperature
chemical_list: D010984:Platinum; D002248:Carbon Monoxide; D010100:Oxygen