Modeling spatiotemporal behavior of the NO+CO reaction on Pt | Zendy

J. W. Evans | Zendy; H. H. Madden | Zendy; R. Imbihl | Zendy

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Modeling spatiotemporal behavior of the NO+CO reaction on Pt

Author(s) -

J. W. Evans,

H. H. Madden,

R. Imbihl

Publication year - 1992

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.462767

Subject(s) - turing , reaction–diffusion system , kinetics , diffusion , belousov–zhabotinsky reaction , phase (matter) , excited state , chemical physics , chemical kinetics , variable (mathematics) , reaction rate , chemistry , physics , statistical physics , thermodynamics , materials science , atomic physics , classical mechanics , mathematical analysis , computer science , mathematics , catalysis , quantum mechanics , organic chemistry , programming language

Various features of NO+CO reaction kinetics on Pt(100) surfaces, including temporal oscillations, are well described by a three‐variable model incorporating only the CO, NO, and O coverages. Here we analyze the corresponding reaction–diffusion equations demonstrating the existence of chemical waves where an ‘‘oscillating phase’’ displaces an unreactive NO/CO phase leaving a spatially periodic structure in its wake; pulses excited via inhomogeneities from an unreactive NO/CO background; and Turing structures for sufficiently unequal NO and CO diffusion rates.

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