Estimation of kinetic and transport parameters by quantitative evaluation of EIS and XPS data

I. Betova, M. Bojinov (Corresponding Author), V. Karastoyanov, Petri Kinnunen, Timo Saario

    Research output: Contribution to journalArticleScientificpeer-review

    18 Citations (Scopus)

    Abstract

    The relatively large number of adjustable parameters often precludes the unambiguous interpretation of electrochemical impedance spectra in terms of a unique kinetic model. In the present paper, the possibilities offered by a combination between in situ electrochemical impedance spectroscopic data and ex situ surface analytical information to improve the credibility of the estimates of the kinetic and transport parameters are discussed. Two electrode systems in which passive oxide films are formed—stainless steel in simulated pressurised water reactor coolant and tungsten in sulphate–fluoride solutions—are used as representative examples to demonstrate the different approaches taken to analyse the experimental data in terms of the Mixed-Conduction Model. Ways to extract information on the rate-limiting steps of the process of passive film formation, growth and restructuring by quantitative comparison of the model equations to electrochemical impedance and X-ray photoelectron spectroscopic data are described and the significance of the obtained parameters for the kinetics of the overall process of metal and alloy dissolution in the passive state is discussed.

    Original languageEnglish
    Pages (from-to)6163-6173
    Number of pages11
    JournalElectrochimica Acta
    Volume55
    Issue number21
    DOIs
    Publication statusPublished - 2010
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    X ray photoelectron spectroscopy
    Kinetics
    Tungsten
    Steel
    Pressurized water reactors
    Photoelectrons
    Coolants
    Oxide films
    Dissolution
    Metals
    X rays
    Electrodes

    Keywords

    • Kinetic model
    • Electrochemical impedance spectroscopy
    • X-ray photoelectron spectroscopy
    • Passive film

    Cite this

    @article{d82ceaca9bbf4fd4863996e0d6a9e93a,
    title = "Estimation of kinetic and transport parameters by quantitative evaluation of EIS and XPS data",
    abstract = "The relatively large number of adjustable parameters often precludes the unambiguous interpretation of electrochemical impedance spectra in terms of a unique kinetic model. In the present paper, the possibilities offered by a combination between in situ electrochemical impedance spectroscopic data and ex situ surface analytical information to improve the credibility of the estimates of the kinetic and transport parameters are discussed. Two electrode systems in which passive oxide films are formed—stainless steel in simulated pressurised water reactor coolant and tungsten in sulphate–fluoride solutions—are used as representative examples to demonstrate the different approaches taken to analyse the experimental data in terms of the Mixed-Conduction Model. Ways to extract information on the rate-limiting steps of the process of passive film formation, growth and restructuring by quantitative comparison of the model equations to electrochemical impedance and X-ray photoelectron spectroscopic data are described and the significance of the obtained parameters for the kinetics of the overall process of metal and alloy dissolution in the passive state is discussed.",
    keywords = "Kinetic model, Electrochemical impedance spectroscopy, X-ray photoelectron spectroscopy, Passive film",
    author = "I. Betova and M. Bojinov and V. Karastoyanov and Petri Kinnunen and Timo Saario",
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    year = "2010",
    doi = "10.1016/j.electacta.2009.11.100",
    language = "English",
    volume = "55",
    pages = "6163--6173",
    journal = "Electrochimica Acta",
    issn = "0013-4686",
    publisher = "Elsevier",
    number = "21",

    }

    Estimation of kinetic and transport parameters by quantitative evaluation of EIS and XPS data. / Betova, I.; Bojinov, M. (Corresponding Author); Karastoyanov, V.; Kinnunen, Petri; Saario, Timo.

    In: Electrochimica Acta, Vol. 55, No. 21, 2010, p. 6163-6173.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Estimation of kinetic and transport parameters by quantitative evaluation of EIS and XPS data

    AU - Betova, I.

    AU - Bojinov, M.

    AU - Karastoyanov, V.

    AU - Kinnunen, Petri

    AU - Saario, Timo

    N1 - Project code: 6402

    PY - 2010

    Y1 - 2010

    N2 - The relatively large number of adjustable parameters often precludes the unambiguous interpretation of electrochemical impedance spectra in terms of a unique kinetic model. In the present paper, the possibilities offered by a combination between in situ electrochemical impedance spectroscopic data and ex situ surface analytical information to improve the credibility of the estimates of the kinetic and transport parameters are discussed. Two electrode systems in which passive oxide films are formed—stainless steel in simulated pressurised water reactor coolant and tungsten in sulphate–fluoride solutions—are used as representative examples to demonstrate the different approaches taken to analyse the experimental data in terms of the Mixed-Conduction Model. Ways to extract information on the rate-limiting steps of the process of passive film formation, growth and restructuring by quantitative comparison of the model equations to electrochemical impedance and X-ray photoelectron spectroscopic data are described and the significance of the obtained parameters for the kinetics of the overall process of metal and alloy dissolution in the passive state is discussed.

    AB - The relatively large number of adjustable parameters often precludes the unambiguous interpretation of electrochemical impedance spectra in terms of a unique kinetic model. In the present paper, the possibilities offered by a combination between in situ electrochemical impedance spectroscopic data and ex situ surface analytical information to improve the credibility of the estimates of the kinetic and transport parameters are discussed. Two electrode systems in which passive oxide films are formed—stainless steel in simulated pressurised water reactor coolant and tungsten in sulphate–fluoride solutions—are used as representative examples to demonstrate the different approaches taken to analyse the experimental data in terms of the Mixed-Conduction Model. Ways to extract information on the rate-limiting steps of the process of passive film formation, growth and restructuring by quantitative comparison of the model equations to electrochemical impedance and X-ray photoelectron spectroscopic data are described and the significance of the obtained parameters for the kinetics of the overall process of metal and alloy dissolution in the passive state is discussed.

    KW - Kinetic model

    KW - Electrochemical impedance spectroscopy

    KW - X-ray photoelectron spectroscopy

    KW - Passive film

    U2 - 10.1016/j.electacta.2009.11.100

    DO - 10.1016/j.electacta.2009.11.100

    M3 - Article

    VL - 55

    SP - 6163

    EP - 6173

    JO - Electrochimica Acta

    JF - Electrochimica Acta

    SN - 0013-4686

    IS - 21

    ER -