Classification of the pH-Oscillatory Hydrogen Peroxide?Thiosulfate?Sulfite Reaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F13%3A43895759" target="_blank" >RIV/60461373:22340/13:43895759 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1021/jp407621j" target="_blank" >http://dx.doi.org/10.1021/jp407621j</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jp407621j" target="_blank" >10.1021/jp407621j</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Classification of the pH-Oscillatory Hydrogen Peroxide?Thiosulfate?Sulfite Reaction

Popis výsledku v původním jazyce

The reaction of hydrogen peroxide with thiosulfate and sulfite in acidic solution is characterized by marked temporal pH variations suggesting autocatalytic nature of hydrogen ions. When carried out in a continuous-flow stirred tank reactor this reactionprovides nonlinear dynamical regimes including periodic oscillations, chaotic behavior, and multiple steady states coexisting over a range of operating conditions. The aim of the presented experimental study is a classification of the role of species and the underlying mechanism in the periodic oscillatory mode by applying single pulse additions of chosen reaction species. The external perturbations at various phases of the periodically oscillating system may cause phase advance or phase delay of the oscillations. The resulting phase transition curves are obtained for hydrogen ions, hydroxide ions, thiosulfate ions, sulfite ions, and hydrogen sulfite ions. These curves are compared with the phase transition curves calculated using the

Název v anglickém jazyce

Classification of the pH-Oscillatory Hydrogen Peroxide?Thiosulfate?Sulfite Reaction

Popis výsledku anglicky

The reaction of hydrogen peroxide with thiosulfate and sulfite in acidic solution is characterized by marked temporal pH variations suggesting autocatalytic nature of hydrogen ions. When carried out in a continuous-flow stirred tank reactor this reactionprovides nonlinear dynamical regimes including periodic oscillations, chaotic behavior, and multiple steady states coexisting over a range of operating conditions. The aim of the presented experimental study is a classification of the role of species and the underlying mechanism in the periodic oscillatory mode by applying single pulse additions of chosen reaction species. The external perturbations at various phases of the periodically oscillating system may cause phase advance or phase delay of the oscillations. The resulting phase transition curves are obtained for hydrogen ions, hydroxide ions, thiosulfate ions, sulfite ions, and hydrogen sulfite ions. These curves are compared with the phase transition curves calculated using the

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Journal of Physical Chemistry A

ISSN

1089-5639

e-ISSN

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Svazek periodika

117

Číslo periodika v rámci svazku

47

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

12196-12207

Kód UT WoS článku

000324296400022

EID výsledku v databázi Scopus

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