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CO+NO surface reaction model by Monte Carlo simulation

Author

Listed:
  • Luque, J.J.
  • Gómez, A.
  • Córdoba, A.

Abstract

A CO+NO→CO2+12N2 surface reaction model is studied by means of Monte Carlo simulations. The surface is represented by triangular and square lattices and the diffusion of N and lateral interaction between reactant nearest-neighbor adatoms is considered. The influence of diffusion of N to generate a steady reactive window (SRW) on square lattice is analyzed. On a triangular lattice SRW exists even in the absence of diffusion of N. We consider repulsive and attractive lateral interaction between reactant pairs, and their effects in reactive zone are studied. With repulsive interaction and without diffusion, SRW vanished, but on a square lattice the diffusion of N helps to generate it, even increasing its width as diffusion grows. On a triangular lattice this effect is not produced. For attractive lateral interaction a SRW is formed in all cases and its width is not modified by diffusion of N at the range studied.

Suggested Citation

  • Luque, J.J. & Gómez, A. & Córdoba, A., 2004. "CO+NO surface reaction model by Monte Carlo simulation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 331(3), pages 505-516.
  • Handle: RePEc:eee:phsmap:v:331:y:2004:i:3:p:505-516
    DOI: 10.1016/j.physa.2003.01.002
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