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Title: Transitions between strongly correlated and random steady-states for catalytic CO-oxidation on surfaces at high-pressure

Journal Article · · Journal of Chemical Physics
DOI:https://doi.org/10.1063/1.4916380· OSTI ID:1227291
 [1];  [2]
  1. Ames Lab., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)

We explore simple lattice-gas reaction models for CO-oxidation on 1D and 2D periodic arrays of surface adsorption sites. The models are motivated by studies of CO-oxidation on RuO2(110) at high-pressures. Although adspecies interactions are neglected, the effective absence of adspecies diffusion results in kinetically-induced spatial correlations. A transition occurs from a random mainly CO-populated steady-state at high CO-partial pressure pCO, to a strongly-correlated near-O-covered steady-state for low pCO as noted. In addition, we identify a second transition to a random near-O-covered steady-state at very low pCO.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1227291
Alternate ID(s):
OSTI ID: 1228180
Report Number(s):
IS-J-8572; JCPSA6
Journal Information:
Journal of Chemical Physics, Vol. 142, Issue 13; ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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Cited By (3)

Discontinuous non-equilibrium phase transition in a threshold Schloegl model for autocatalysis: Generic two-phase coexistence and metastability journal April 2015
A practical approach to the sensitivity analysis for kinetic Monte Carlo simulation of heterogeneous catalysis journal January 2017
A practical approach to the sensitivity analysis for kinetic Monte Carlo simulation of heterogeneous catalysis text January 2016