A method to separate process contributions in impedance spectra by variation of test conditions

Søren Højgaard Jensen; Anne Hauch; Peter Vang Hendriksen; Mogens Bjerg Mogensen; Nikolaos Bonanos; Torben Jacobsen

doi:10.1149/1.2790791

A method to separate process contributions in impedance spectra by variation of test conditions

Søren Højgaard Jensen, Anne Hauch, Peter Vang Hendriksen, Mogens Bjerg Mogensen, Nikolaos Bonanos, Torben Jacobsen

Department of Chemistry

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Abstract

Many processes contribute to the overall impedance of an electrochemical cell, and these may be difficult to separate in the impedance spectrum. Here, we present an investigation of a solid oxide fuel cell based on differences in impedance spectra due to a change of operating parameters and present the result as the derivative of the impedance with respect to ln(f). The method is used to separate the anode and cathode contributions and to identify various types of processes.

Original language	English
Journal	Journal of The Electrochemical Society
Volume	154
Issue number	12
Pages (from-to)	B1325-B1330
ISSN	0013-4651
DOIs	https://doi.org/10.1149/1.2790791
Publication status	Published - 2007

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Copyright The Electrochemical Society, Inc. [2007]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).

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abstract = "Many processes contribute to the overall impedance of an electrochemical cell, and these may be difficult to separate in the impedance spectrum. Here, we present an investigation of a solid oxide fuel cell based on differences in impedance spectra due to a change of operating parameters and present the result as the derivative of the impedance with respect to ln(f). The method is used to separate the anode and cathode contributions and to identify various types of processes.",

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AU - Jensen, Søren Højgaard

AU - Hauch, Anne

AU - Hendriksen, Peter Vang

AU - Mogensen, Mogens Bjerg

AU - Bonanos, Nikolaos

AU - Jacobsen, Torben

N1 - Copyright The Electrochemical Society, Inc. [2007]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).

PY - 2007

Y1 - 2007

N2 - Many processes contribute to the overall impedance of an electrochemical cell, and these may be difficult to separate in the impedance spectrum. Here, we present an investigation of a solid oxide fuel cell based on differences in impedance spectra due to a change of operating parameters and present the result as the derivative of the impedance with respect to ln(f). The method is used to separate the anode and cathode contributions and to identify various types of processes.

AB - Many processes contribute to the overall impedance of an electrochemical cell, and these may be difficult to separate in the impedance spectrum. Here, we present an investigation of a solid oxide fuel cell based on differences in impedance spectra due to a change of operating parameters and present the result as the derivative of the impedance with respect to ln(f). The method is used to separate the anode and cathode contributions and to identify various types of processes.

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DO - 10.1149/1.2790791

M3 - Journal article

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VL - 154

SP - B1325-B1330

JO - Journal of The Electrochemical Society

JF - Journal of The Electrochemical Society

IS - 12

ER -

A method to separate process contributions in impedance spectra by variation of test conditions

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