Chemical origin of the sustained-like pattern formation observed in the bromate - Dual substrate - Dual catalyst oscillatory batch system

K. Kurin-Csörgei, Viktor Horváth, M. Orbán

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The BrO 3 - - BrAc - Ru(bpy) 3 2+ subsystem is shown to represent the core oscillator that serves as source of the long lasting temporal and spatial periodic behaviors observed in the BrO 3 - - H2PO 2 - - acetone - Mn2+ - Ru(bpy) 3 2+ - acid "double substrate-double catalyst" oscillatory batch system. The BrAc - the substrate of the core oscillator - is formed and accumulated in the reactions taking place in the six-component system. BrAc was produced in a separate experiment with bromide, acetone, acid and excess bromate and the mixture was used for bringing about patterns in the thin solution layer after adding the Ru(bpy) 3 2+ catalyst. The two-dimensional reaction-diffusion patterns that appear in the subsystem and its parent system are very similar in wave speed, wavelength, color and in the duration of the pattern evolution, therefore a common chemical origin is supposed to exist in their formation. The role that the BrAc may play in the mechanism of the BrO 3 - - reductant - acetone - catalyst type oscillators (∼ 30 variants) is also pointed out.

Original languageEnglish
Pages (from-to)405-411
Number of pages7
JournalReaction Kinetics and Catalysis Letters
Volume90
Issue number2
DOIs
Publication statusPublished - Apr 2007

Fingerprint

Bromates
bromates
Acetone
acetone
oscillators
catalysts
Catalysts
Substrates
acids
Acids
Reducing Agents
Bromides
bromides
Color
color
Wavelength
wavelengths
tris(2,2'-bipyridine)ruthenium II
Experiments

Keywords

  • Bromate oscillators
  • Pattern formation

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

@article{d2f864b0a3ae473ea432dd47d1becfa8,
title = "Chemical origin of the sustained-like pattern formation observed in the bromate - Dual substrate - Dual catalyst oscillatory batch system",
abstract = "The BrO 3 - - BrAc - Ru(bpy) 3 2+ subsystem is shown to represent the core oscillator that serves as source of the long lasting temporal and spatial periodic behaviors observed in the BrO 3 - - H2PO 2 - - acetone - Mn2+ - Ru(bpy) 3 2+ - acid {"}double substrate-double catalyst{"} oscillatory batch system. The BrAc - the substrate of the core oscillator - is formed and accumulated in the reactions taking place in the six-component system. BrAc was produced in a separate experiment with bromide, acetone, acid and excess bromate and the mixture was used for bringing about patterns in the thin solution layer after adding the Ru(bpy) 3 2+ catalyst. The two-dimensional reaction-diffusion patterns that appear in the subsystem and its parent system are very similar in wave speed, wavelength, color and in the duration of the pattern evolution, therefore a common chemical origin is supposed to exist in their formation. The role that the BrAc may play in the mechanism of the BrO 3 - - reductant - acetone - catalyst type oscillators (∼ 30 variants) is also pointed out.",
keywords = "Bromate oscillators, Pattern formation",
author = "K. Kurin-Cs{\"o}rgei and Viktor Horv{\'a}th and M. Orb{\'a}n",
year = "2007",
month = "4",
doi = "10.1007/s11144-007-5117-1",
language = "English",
volume = "90",
pages = "405--411",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
issn = "1878-5190",
publisher = "Springer Netherlands",
number = "2",

}

TY - JOUR

T1 - Chemical origin of the sustained-like pattern formation observed in the bromate - Dual substrate - Dual catalyst oscillatory batch system

AU - Kurin-Csörgei, K.

AU - Horváth, Viktor

AU - Orbán, M.

PY - 2007/4

Y1 - 2007/4

N2 - The BrO 3 - - BrAc - Ru(bpy) 3 2+ subsystem is shown to represent the core oscillator that serves as source of the long lasting temporal and spatial periodic behaviors observed in the BrO 3 - - H2PO 2 - - acetone - Mn2+ - Ru(bpy) 3 2+ - acid "double substrate-double catalyst" oscillatory batch system. The BrAc - the substrate of the core oscillator - is formed and accumulated in the reactions taking place in the six-component system. BrAc was produced in a separate experiment with bromide, acetone, acid and excess bromate and the mixture was used for bringing about patterns in the thin solution layer after adding the Ru(bpy) 3 2+ catalyst. The two-dimensional reaction-diffusion patterns that appear in the subsystem and its parent system are very similar in wave speed, wavelength, color and in the duration of the pattern evolution, therefore a common chemical origin is supposed to exist in their formation. The role that the BrAc may play in the mechanism of the BrO 3 - - reductant - acetone - catalyst type oscillators (∼ 30 variants) is also pointed out.

AB - The BrO 3 - - BrAc - Ru(bpy) 3 2+ subsystem is shown to represent the core oscillator that serves as source of the long lasting temporal and spatial periodic behaviors observed in the BrO 3 - - H2PO 2 - - acetone - Mn2+ - Ru(bpy) 3 2+ - acid "double substrate-double catalyst" oscillatory batch system. The BrAc - the substrate of the core oscillator - is formed and accumulated in the reactions taking place in the six-component system. BrAc was produced in a separate experiment with bromide, acetone, acid and excess bromate and the mixture was used for bringing about patterns in the thin solution layer after adding the Ru(bpy) 3 2+ catalyst. The two-dimensional reaction-diffusion patterns that appear in the subsystem and its parent system are very similar in wave speed, wavelength, color and in the duration of the pattern evolution, therefore a common chemical origin is supposed to exist in their formation. The role that the BrAc may play in the mechanism of the BrO 3 - - reductant - acetone - catalyst type oscillators (∼ 30 variants) is also pointed out.

KW - Bromate oscillators

KW - Pattern formation

UR - http://www.scopus.com/inward/record.url?scp=34147176105&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34147176105&partnerID=8YFLogxK

U2 - 10.1007/s11144-007-5117-1

DO - 10.1007/s11144-007-5117-1

M3 - Article

AN - SCOPUS:34147176105

VL - 90

SP - 405

EP - 411

JO - Reaction Kinetics, Mechanisms and Catalysis

JF - Reaction Kinetics, Mechanisms and Catalysis

SN - 1878-5190

IS - 2

ER -