Analysis of Compex Oscillatory Dynamics of a pH Oscillator

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F07%3A00018105" target="_blank" >RIV/60461373:22340/07:00018105 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Analysis of Compex Oscillatory Dynamics of a pH Oscillator

Original language description

Reaction systems that display pronounced periodic and aperiodic variations in the pH value of the reaction medium are known as pH oscillators. A member of this family of reactions studied here, the Cu(II)-catalyzed oxidation of thiosulfate by hydrogen peroxide in acidic solution, is known to display rich variety of oscillatory dynamics. We focus on experimental time series showing complex aperiodic dynamics that simultaneously possess the characteristics of period-doubled large-amplitude oscillations and irregular small-amplitude oscillations, reminiscent of mixed-mode dynamics. An analysis based on the reconstruction of the attractor from the measured time series by two different methods and a subsequent calculation of the maximal Lyapunov exponent reveals that this interesting dynamical regime is a manifestation of deterministic chaos.

Czech name

Analýzy složité oscilační dynamiky pH oscilátoru

Czech description

Studovanou reakcí je katalyzovaná oxidace thisíranu peroxidem vodíku. Systém vykazuje složité chování v čase. Naměřené časové řady jsou podrobeny důkladnému studiu. Výpočty Ljapunových exponentů potvrzují, že reakce poskytuje chotické chování.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GA203%2F06%2F1269" target="_blank" >GA203/06/1269: Stability and dynamics of reaction networks in homogeneous and heterogeneous chemical reactors</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Russ.Journal Phys.Chem.(Engl.Transl. of Zhurnal Fiz.Khimiceskaja )

ISSN

0036-0244

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

A81

Country of publishing house

RU - RUSSIAN FEDERATION

Number of pages

6

Pages from-to

1407-1412

UT code for WoS article

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EID of the result in the Scopus database

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