Electrochemical Characterization of Ni/(Sc)YSZ Electrodes

Tania Ramos; Karl Tor Sune Thydén; Mogens Bjerg Mogensen

doi:10.1149/1.3495837

Electrochemical Characterization of Ni/(Sc)YSZ Electrodes

Tania Ramos, Karl Tor Sune Thydén, Mogens Bjerg Mogensen

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

Investigations of Ni/(Sc)YSZ cermets for solid oxide cells (SOCs) were performed by electrochemical impedance spectroscopy (EIS), under varying experimental conditions and upon redox cycling, using three different designs of symmetric cells. The deconvolution and fitting of the obtained impedance spectra was performed using a combination of distribution of relaxation times (DRT) and complex non-linear least squares fitting routine (CNLS). The exhibited behaviours allowed the attribution of each contribution to a specific process, and correlated with production methods and microstructural parameters. Initial degradation results for both Ni/ScYSZ and Ni/YSZ based anodes under very high steam content are also reported. ©2010 COPYRIGHT ECS - The Electrochemical Society

Original language	English
Journal	E C S Transactions
Volume	28
Issue number	11
Pages (from-to)	123-139
ISSN	1938-5862
DOIs	https://doi.org/10.1149/1.3495837
Publication status	Published - 2010
Event	217th Electrochemical Society Meeting: B11 - Ionic and Mixed Conducting Ceramics 7 - Vancouver, Canada Duration: 25 Apr 2010 → 30 Apr 2010 Conference number: 217 http://www.electrochem.org/meetings/biannual/217/217.htm

Conference

Conference	217th Electrochemical Society Meeting
Number	217
Country/Territory	Canada
City	Vancouver
Period	25/04/2010 → 30/04/2010
Internet address	http://www.electrochem.org/meetings/biannual/217/217.htm

Keywords

Solid Oxide Fuel Cells
Fuel Cells and Hydrogen

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title = "Electrochemical Characterization of Ni/(Sc)YSZ Electrodes",

abstract = "Investigations of Ni/(Sc)YSZ cermets for solid oxide cells (SOCs) were performed by electrochemical impedance spectroscopy (EIS), under varying experimental conditions and upon redox cycling, using three different designs of symmetric cells. The deconvolution and fitting of the obtained impedance spectra was performed using a combination of distribution of relaxation times (DRT) and complex non-linear least squares fitting routine (CNLS). The exhibited behaviours allowed the attribution of each contribution to a specific process, and correlated with production methods and microstructural parameters. Initial degradation results for both Ni/ScYSZ and Ni/YSZ based anodes under very high steam content are also reported. {\textcopyright}2010 COPYRIGHT ECS - The Electrochemical Society",

keywords = "Solid Oxide Fuel Cells, Fuel Cells and Hydrogen, Br{\ae}ndselsceller og brint",

author = "Tania Ramos and Thyd{\'e}n, {Karl Tor Sune} and Mogensen, {Mogens Bjerg}",

year = "2010",

doi = "10.1149/1.3495837",

language = "English",

volume = "28",

pages = "123--139",

journal = "E C S Transactions",

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publisher = "The Electrochemical Society",

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note = "217th Electrochemical Society Meeting : B11 - Ionic and Mixed Conducting Ceramics 7 ; Conference date: 25-04-2010 Through 30-04-2010",

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AU - Thydén, Karl Tor Sune

AU - Mogensen, Mogens Bjerg

N1 - Conference code: 217

PY - 2010

Y1 - 2010

N2 - Investigations of Ni/(Sc)YSZ cermets for solid oxide cells (SOCs) were performed by electrochemical impedance spectroscopy (EIS), under varying experimental conditions and upon redox cycling, using three different designs of symmetric cells. The deconvolution and fitting of the obtained impedance spectra was performed using a combination of distribution of relaxation times (DRT) and complex non-linear least squares fitting routine (CNLS). The exhibited behaviours allowed the attribution of each contribution to a specific process, and correlated with production methods and microstructural parameters. Initial degradation results for both Ni/ScYSZ and Ni/YSZ based anodes under very high steam content are also reported. ©2010 COPYRIGHT ECS - The Electrochemical Society

AB - Investigations of Ni/(Sc)YSZ cermets for solid oxide cells (SOCs) were performed by electrochemical impedance spectroscopy (EIS), under varying experimental conditions and upon redox cycling, using three different designs of symmetric cells. The deconvolution and fitting of the obtained impedance spectra was performed using a combination of distribution of relaxation times (DRT) and complex non-linear least squares fitting routine (CNLS). The exhibited behaviours allowed the attribution of each contribution to a specific process, and correlated with production methods and microstructural parameters. Initial degradation results for both Ni/ScYSZ and Ni/YSZ based anodes under very high steam content are also reported. ©2010 COPYRIGHT ECS - The Electrochemical Society

KW - Solid Oxide Fuel Cells

KW - Fuel Cells and Hydrogen

KW - Brændselsceller og brint

U2 - 10.1149/1.3495837

DO - 10.1149/1.3495837

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SN - 1938-5862

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JO - E C S Transactions

JF - E C S Transactions

IS - 11

T2 - 217th Electrochemical Society Meeting

Y2 - 25 April 2010 through 30 April 2010

ER -

Electrochemical Characterization of Ni/(Sc)YSZ Electrodes

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