Condensed Matter Physics, 2010, vol. 13, No. 3, p. 34801:1-5
DOI:10.5488/CMP.13.34801

Rapid Communication

Title: Chemical oscillations in catalytic CO oxidation reaction
Author(s):
  I.S. Bzovska (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., 79011 Lviv, Ukraine) ,
  I.M. Mryglod (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii Str., 79011 Lviv, Ukraine)

Temporal dynamics of a heterogeneous catalytic system, namely of the catalytic CO oxidation on Pt(110) surface at low pressures, is investigated with taking into account the adsorbate-driven structural transformations of the catalyst surface. Uniform temporal periodic chemical oscillations of the CO and oxygen coverages, and the fraction of the surface of the 1x1 structure are obtained in a narrow region of phase diagram between two uniform stable states of high and low catalytic activities, respectively.

Key words: chemical oscillations, bifurcation, catalytic oxidation, carbon monoxide, oxygen
PACS: 82.65.+r, 82.40.Bj


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