A study on time-dependence of the oxygen evolution reaction on nickel by FFT impedance measurement

Tetsuya Osaka, Yuji Yatsuda

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The degradation and rejuvenation of the oxygen evolution reaction (OER) on nickel electrodes in 1 mole dm-3 KOH solution were studied by electrochemical techniques, especially by an impedence method using the first Fourier transform (FFT) which is able to measure the frequency-dispersion for the time-dependence of the reaction because of its short measuring time. The impedance behaviour for the OER was well explained by equivalent circuits for the low and the high overpotential regions, respectively. OER rejuvenation by anodization at 0.6 V was pursued by the capacitance component of the equivalent circuit for the high overpotential region. This rejuvenation by anodization was assumed to produce a transformation of oxide layers corresponding to the capacitance component and also grow poorly conductive oxide films.

Original languageEnglish
Pages (from-to)677-681
Number of pages5
JournalElectrochimica Acta
Volume29
Issue number5
DOIs
Publication statusPublished - 1984

Fingerprint

Nickel
Fourier transforms
Oxygen
Equivalent circuits
Capacitance
Conductive films
Oxides
Oxide films
Degradation
Electrodes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

A study on time-dependence of the oxygen evolution reaction on nickel by FFT impedance measurement. / Osaka, Tetsuya; Yatsuda, Yuji.

In: Electrochimica Acta, Vol. 29, No. 5, 1984, p. 677-681.

Research output: Contribution to journalArticle

@article{61955da498724c2792a3b936f4159a9b,
title = "A study on time-dependence of the oxygen evolution reaction on nickel by FFT impedance measurement",
abstract = "The degradation and rejuvenation of the oxygen evolution reaction (OER) on nickel electrodes in 1 mole dm-3 KOH solution were studied by electrochemical techniques, especially by an impedence method using the first Fourier transform (FFT) which is able to measure the frequency-dispersion for the time-dependence of the reaction because of its short measuring time. The impedance behaviour for the OER was well explained by equivalent circuits for the low and the high overpotential regions, respectively. OER rejuvenation by anodization at 0.6 V was pursued by the capacitance component of the equivalent circuit for the high overpotential region. This rejuvenation by anodization was assumed to produce a transformation of oxide layers corresponding to the capacitance component and also grow poorly conductive oxide films.",
author = "Tetsuya Osaka and Yuji Yatsuda",
year = "1984",
doi = "10.1016/0013-4686(84)87127-3",
language = "English",
volume = "29",
pages = "677--681",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",
number = "5",

}

TY - JOUR

T1 - A study on time-dependence of the oxygen evolution reaction on nickel by FFT impedance measurement

AU - Osaka, Tetsuya

AU - Yatsuda, Yuji

PY - 1984

Y1 - 1984

N2 - The degradation and rejuvenation of the oxygen evolution reaction (OER) on nickel electrodes in 1 mole dm-3 KOH solution were studied by electrochemical techniques, especially by an impedence method using the first Fourier transform (FFT) which is able to measure the frequency-dispersion for the time-dependence of the reaction because of its short measuring time. The impedance behaviour for the OER was well explained by equivalent circuits for the low and the high overpotential regions, respectively. OER rejuvenation by anodization at 0.6 V was pursued by the capacitance component of the equivalent circuit for the high overpotential region. This rejuvenation by anodization was assumed to produce a transformation of oxide layers corresponding to the capacitance component and also grow poorly conductive oxide films.

AB - The degradation and rejuvenation of the oxygen evolution reaction (OER) on nickel electrodes in 1 mole dm-3 KOH solution were studied by electrochemical techniques, especially by an impedence method using the first Fourier transform (FFT) which is able to measure the frequency-dispersion for the time-dependence of the reaction because of its short measuring time. The impedance behaviour for the OER was well explained by equivalent circuits for the low and the high overpotential regions, respectively. OER rejuvenation by anodization at 0.6 V was pursued by the capacitance component of the equivalent circuit for the high overpotential region. This rejuvenation by anodization was assumed to produce a transformation of oxide layers corresponding to the capacitance component and also grow poorly conductive oxide films.

UR - http://www.scopus.com/inward/record.url?scp=0021426830&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0021426830&partnerID=8YFLogxK

U2 - 10.1016/0013-4686(84)87127-3

DO - 10.1016/0013-4686(84)87127-3

M3 - Article

AN - SCOPUS:0021426830

VL - 29

SP - 677

EP - 681

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

IS - 5

ER -