Diffusion-driven pattern formation in ionic chemical solutions

Zsanett Virányi, A. Tóth, D. Horváth

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The driving force in diffusion-driven pattern formation is the difference in the diffusional flux of the key species, which in the case of ionic systems builds up a local electric field at the concentration gradients. The arising additional migrational flux not only decreases but also enhances the instability of the base state, depending on the charge distribution among the components. The opposite charges on the slower diffusing autocatalyst and its reacting counterpart favor pattern formation and shift the onset of instability to a smaller difference in the diffusion coefficients. The same charges, in addition to having the opposite effect, may even lead to the complete stabilization of planar reaction fronts unstable in the neutral system.

Original languageEnglish
Article number088301
JournalPhysical Review Letters
Volume100
Issue number8
DOIs
Publication statusPublished - Feb 29 2008

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charge distribution
diffusion coefficient
stabilization
gradients
electric fields
shift

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Diffusion-driven pattern formation in ionic chemical solutions. / Virányi, Zsanett; Tóth, A.; Horváth, D.

In: Physical Review Letters, Vol. 100, No. 8, 088301, 29.02.2008.

Research output: Contribution to journalArticle

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