Stationary potential patterns during the reduction of peroxodisulfate at Ag ring electrodes

Peter Grauel; Jan Christoph; Georg Flätgen; Katharina Krischer

doi:10.1021/jp982841m

Stationary potential patterns during the reduction of peroxodisulfate at Ag ring electrodes

Peter Grauel, Jan Christoph, Georg Flätgen, Katharina Krischer

Abteilung Physikalische Chemie

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

The potential distribution in front of a Ag ring electrode during the reduction of peroxodisulfate was measured with potential microprobes. Inhomogeneous stationary potential distributions were observed when using a Haber - Luggin capillary, i.e., placing the reference electrode close to the working electrode on the axis of the ring. It is shown that such an arrangement introduces a negative global coupling into the system which destabilizes homogeneous stationary states if the current - potential characteristics exhibits a negative differential resistance. Further consequences of the negative global coupling are discussed, and the effect of an additional, external series resistor is demonstrated.

Original language	English
Pages (from-to)	10264-10271
Number of pages	8
Journal	Journal of Physical Chemistry B
Volume	102
Issue number	50
DOIs	https://doi.org/10.1021/jp982841m
State	Published - 10 Dec 1998
Externally published	Yes

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title = "Stationary potential patterns during the reduction of peroxodisulfate at Ag ring electrodes",

abstract = "The potential distribution in front of a Ag ring electrode during the reduction of peroxodisulfate was measured with potential microprobes. Inhomogeneous stationary potential distributions were observed when using a Haber - Luggin capillary, i.e., placing the reference electrode close to the working electrode on the axis of the ring. It is shown that such an arrangement introduces a negative global coupling into the system which destabilizes homogeneous stationary states if the current - potential characteristics exhibits a negative differential resistance. Further consequences of the negative global coupling are discussed, and the effect of an additional, external series resistor is demonstrated.",

author = "Peter Grauel and Jan Christoph and Georg Fl{\"a}tgen and Katharina Krischer",

year = "1998",

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doi = "10.1021/jp982841m",

language = "English",

volume = "102",

pages = "10264--10271",

journal = "Journal of Physical Chemistry B",

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publisher = "American Chemical Society",

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T1 - Stationary potential patterns during the reduction of peroxodisulfate at Ag ring electrodes

AU - Grauel, Peter

AU - Christoph, Jan

AU - Flätgen, Georg

AU - Krischer, Katharina

PY - 1998/12/10

Y1 - 1998/12/10

N2 - The potential distribution in front of a Ag ring electrode during the reduction of peroxodisulfate was measured with potential microprobes. Inhomogeneous stationary potential distributions were observed when using a Haber - Luggin capillary, i.e., placing the reference electrode close to the working electrode on the axis of the ring. It is shown that such an arrangement introduces a negative global coupling into the system which destabilizes homogeneous stationary states if the current - potential characteristics exhibits a negative differential resistance. Further consequences of the negative global coupling are discussed, and the effect of an additional, external series resistor is demonstrated.

AB - The potential distribution in front of a Ag ring electrode during the reduction of peroxodisulfate was measured with potential microprobes. Inhomogeneous stationary potential distributions were observed when using a Haber - Luggin capillary, i.e., placing the reference electrode close to the working electrode on the axis of the ring. It is shown that such an arrangement introduces a negative global coupling into the system which destabilizes homogeneous stationary states if the current - potential characteristics exhibits a negative differential resistance. Further consequences of the negative global coupling are discussed, and the effect of an additional, external series resistor is demonstrated.

UR - https://www.scopus.com/pages/publications/0001361961

U2 - 10.1021/jp982841m

DO - 10.1021/jp982841m

M3 - Article

AN - SCOPUS:0001361961

SN - 1520-6106

VL - 102

SP - 10264

EP - 10271

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 50

ER -

Stationary potential patterns during the reduction of peroxodisulfate at Ag ring electrodes

Abstract

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