Effect of Surface Oxide Transformation on CO Oxidation



Document title: Effect of Surface Oxide Transformation on CO Oxidation
Journal: Brazilian journal of physics
Database: PERIÓDICA
System number: 000385159
ISSN: 0103-9733
Authors: 1
1
Institutions: 1Banaras Hindu University, Indian Institute of Technology, Varanasi, Banaras. India
Year:
Season: Feb
Volumen: 45
Number: 1
Pages: 72-78
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract Under sub-atmospheric conditions, many metal catalyst surfaces for CO oxidation transform to the oxide phase with higher catalytic activity than chemisorbed oxygen. The surface phase transformation from metal to its oxide could be by collective oxidation of the adsorbed oxygen sites as soon as their coverage reaches a global critical threshold, or such oxidation may be restricted to small patches of the surface, which is driven by the local coverage. In this communication, we investigate the effect of the latter on the phase diagram and the CO2 production rate behavior using a kinetic Monte Carlo surface reaction lattice gas model for CO oxidation
Disciplines: Física y astronomía,
Química
Keyword: Termodinámica y física estadística,
Cinética química,
Reacciones catalíticas,
Superficies metálicas,
Simulación de Montecarlo,
Oxidación,
Monóxido de carbono
Keyword: Physics and astronomy,
Chemistry,
Thermodynamics and statistical physics,
Chemical kinetics,
Catalytic reactions,
Metallic surfaces,
Monte Carlo simulation,
Oxidation,
Carbon monoxide
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