A new system for studying spatial front instabilities: The supercatalytic chlorite-trithionate reaction

György Cseko, Lin Ren, Yang Liu, Qingyu Gao, Attila K. Horváth

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5 Citations (Scopus)

Abstract

We show that the chlorite-trithionate reaction is " supercatalytic"; i.e., the formal kinetic order of the autocatalyst H + is 2. A simple model is proposed and discussed to describe the unusual concentration dependencies of one-dimensional front propagation found experimentally. It is also demonstrated that at relatively wide concentration ranges the linear two-dimensional front initiated loses its stability, giving rise to an appearance of cellular structures in a convection-free system. Compared to the chlorite-tetrathionate reaction, however, this system is much more stable at alkaline conditions, even for hours; therefore, no side reactions can be taken into consideration to check whether they may have any side effects on the evolution of spatiotemporal structures.

Original languageEnglish
Pages (from-to)815-821
Number of pages7
JournalJournal of Physical Chemistry A
Volume118
Issue number5
DOIs
Publication statusPublished - Feb 6 2014

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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