Self-Oscillations and Chemical Waves in CO Oxidation on Pt and Pd: Kinetic Monte Carlo Models Full article
Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Output data | Year: 2009, Volume: 50, Number: 1, Pages: 40-47 Pages count : 8 DOI: 10.1134/S0023158409010066 | ||||
Tags | Monte Carlo; Adsorbed Species; Spatiotemporal Dynamic; Monte Carlo Step; Single Crystal Surface | ||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Foundation for Basic Research | 08-03-00454 |
Abstract:
Theoretical studies of the spatiotemporal dynamics of CO oxidation on Pt(100) and Pd(110) single crystal surfaces have been carried out by the kinetic Monte Carlo method. For both surfaces, Monte Carlo simulation has revealed oscillations of the CO2 formation rate and of the concentrations of adsorbed species. The oscillations are accompanied by wave processes on the model surface. Simulations have demonstrated that there is a narrow reaction zone when an oxygen wave propagates over the surface. The existence of this zone has been confirmed by experimental studies. Taking into account the anisotropy of the Pd(110) crystal has no effect on the oscillation period and amplitude, but leads to the formation of elliptic oxygen patterns on the surface. It is possible to obtain a wide variety of chemical waves (cellular and turbulent structures, spirals, rings, and strips) by varying the parameters of the computational experiment.
Cite:
Elokhin V.I.
, Matveev A.V.
, Gorodetskii V.V.
Self-Oscillations and Chemical Waves in CO Oxidation on Pt and Pd: Kinetic Monte Carlo Models
Kinetics and Catalysis. 2009. V.50. N1. P.40-47. DOI: 10.1134/S0023158409010066 WOS Scopus РИНЦ
Self-Oscillations and Chemical Waves in CO Oxidation on Pt and Pd: Kinetic Monte Carlo Models
Kinetics and Catalysis. 2009. V.50. N1. P.40-47. DOI: 10.1134/S0023158409010066 WOS Scopus РИНЦ
Original:
Елохин В.И.
, Матвеев А.В.
, Городецкий В.В.
Автоколебания и химические волны в реакции окисления CO на Pt и Pd: кинетические модели Монте-Карло
Кинетика и катализ. 2009. Т.50. №1. С.46-53. РИНЦ
Автоколебания и химические волны в реакции окисления CO на Pt и Pd: кинетические модели Монте-Карло
Кинетика и катализ. 2009. Т.50. №1. С.46-53. РИНЦ
Dates:
Submitted: | Apr 18, 2008 |
Published print: | Jan 1, 2009 |
Published online: | Apr 18, 2009 |
Identifiers:
Web of science | WOS:000265298500006 |
Scopus | 2-s2.0-65249090773 |
Elibrary | 13607342 |
Chemical Abstracts | 2009:328901 |
Chemical Abstracts (print) | 150:291776 |
OpenAlex | W2034785785 |