Precipitation patterns with polygonal boundaries between electrolytes

Physical Chemistry Chemical Physics : PCCP
Changwei PanIrving R Epstein

Abstract

Two-dimensional Liesegang patterns formed when the boundary between electrolytes is polygonal display a variety of patterns, such as dislocations (radial alleys of gaps), branches (anastomoses) and spirals, many of which can be found in nature. Each vertex of the polygon can produce a pair of dislocation lines or branch lines. The effect caused by a vertex decreases with the number of vertices. Double-armed spirals are observed in experiments with a pentagonal boundary. Hexagons, which begin to approach smooth circular boundaries, do not give rise to dislocations, but instead yield concentric precipitation rings. A simple model of nucleation growth enables us to simulate dislocations and spirals consistent with those seen in our experiments.

References

Jul 21, 1986·Physical Review Letters·G T Dee
Mar 5, 2004·Physical Review Letters·M I LebedevaM Tsapatsis
Feb 9, 2005·Physical Review Letters·Marcin FiałkowskiBartosz A Grzybowski
Jul 21, 2006·The Journal of Physical Chemistry. B·I T BensemannB A Grzybowski
Jul 3, 2007·The Journal of Physical Chemistry. a·Maysam MsharrafiehRabih Sultan
May 7, 1982·Science·S C MüllerJ Ross
Nov 13, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·T AntalZ Rácz

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Citations

Mar 11, 2017·The Journal of Physical Chemistry. B·Yushiro ShimizuHideki Nabika
Mar 17, 2011·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Layla BadrRabih Sultan
Nov 28, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Hideki NabikaIstván Lagzi
Aug 28, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Masayo MatsueHideki Nabika

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