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Published on: June 23, 2017
On one dimensional chemical diode and frequency generator constructed with an excitable surface reaction
1Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 36/42, 02-668, Warsaw, Poland. gorec@ifpan.edu.pl
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.
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