Spatiotemporal period doubling during the electrodissolution of iron

J. L. Hudson; J. Tabora; K. Krischer; I. G. Kevrekidis

doi:10.1016/0375-9601(93)90691-R

Spatiotemporal period doubling during the electrodissolution of iron

J. L. Hudson, J. Tabora, K. Krischer, I. G. Kevrekidis

Chemical & Biological Engineering

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Abstract

We study the spatiotemporal dynamics of the potentiostatic electrodissolution of a circular iron electrode in sulfuric acid under conditions involving oscillations between active and passive states. We measure the spatially averaged dissolution rate (the current), and record spatially resolved surface patterns (the growth of a passivating film) with a video camera. As the potential is varied, the O(2) spatial symmetry of a base oscillatory state (high potentials) breaks giving rise to a period-doubled oscillation with apparent Z₂⊕Z^c₂ spatiotemporal symmetry.

Original language	English (US)
Pages (from-to)	355-363
Number of pages	9
Journal	Physics Letters A
Volume	179
Issue number	4-5
DOIs	https://doi.org/10.1016/0375-9601(93)90691-R
State	Published - Aug 16 1993

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1016/0375-9601(93)90691-R

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title = "Spatiotemporal period doubling during the electrodissolution of iron",

abstract = "We study the spatiotemporal dynamics of the potentiostatic electrodissolution of a circular iron electrode in sulfuric acid under conditions involving oscillations between active and passive states. We measure the spatially averaged dissolution rate (the current), and record spatially resolved surface patterns (the growth of a passivating film) with a video camera. As the potential is varied, the O(2) spatial symmetry of a base oscillatory state (high potentials) breaks giving rise to a period-doubled oscillation with apparent Z2⊕Zc2 spatiotemporal symmetry.",

author = "Hudson, {J. L.} and J. Tabora and K. Krischer and Kevrekidis, {I. G.}",

note = "Funding Information: The authors would like to thank Bill Farr, and especially M. Dellnitz for valuable discussions and K. Alexander for assistance with the image processing. This work was supported in part by the National Sci-J-1850). KK thanks the DFG for financial support through a scholarship.",

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doi = "10.1016/0375-9601(93)90691-R",

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T1 - Spatiotemporal period doubling during the electrodissolution of iron

AU - Hudson, J. L.

AU - Tabora, J.

AU - Krischer, K.

AU - Kevrekidis, I. G.

N1 - Funding Information: The authors would like to thank Bill Farr, and especially M. Dellnitz for valuable discussions and K. Alexander for assistance with the image processing. This work was supported in part by the National Sci-J-1850). KK thanks the DFG for financial support through a scholarship.

PY - 1993/8/16

Y1 - 1993/8/16

N2 - We study the spatiotemporal dynamics of the potentiostatic electrodissolution of a circular iron electrode in sulfuric acid under conditions involving oscillations between active and passive states. We measure the spatially averaged dissolution rate (the current), and record spatially resolved surface patterns (the growth of a passivating film) with a video camera. As the potential is varied, the O(2) spatial symmetry of a base oscillatory state (high potentials) breaks giving rise to a period-doubled oscillation with apparent Z2⊕Zc2 spatiotemporal symmetry.

AB - We study the spatiotemporal dynamics of the potentiostatic electrodissolution of a circular iron electrode in sulfuric acid under conditions involving oscillations between active and passive states. We measure the spatially averaged dissolution rate (the current), and record spatially resolved surface patterns (the growth of a passivating film) with a video camera. As the potential is varied, the O(2) spatial symmetry of a base oscillatory state (high potentials) breaks giving rise to a period-doubled oscillation with apparent Z2⊕Zc2 spatiotemporal symmetry.

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Spatiotemporal period doubling during the electrodissolution of iron

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