Characterisation of the Ni/ScYSZ interface in a model solid oxide fuel cell anode

Michael Stenbæk Schmidt; Karin Vels Hansen; Kion Norrman; Mogens Mogensen

doi:10.1016/j.ssi.2008.08.002

Characterisation of the Ni/ScYSZ interface in a model solid oxide fuel cell anode

Michael Stenbæk Schmidt^*, Karin Vels Hansen, Kion Norrman, Mogens Mogensen

^*Corresponding author for this work

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

10 Scopus citations

Abstract

A nickel point electrode setup was used as a model of an SOFC anode on three slightly different electrolytes of zirconia stabilised by co-doping with scandia and yttria. The effect of electrolyte impurities on the electrode polarisation resistance was investigated by correlating electrochemical impedance spectroscopy data with time-of-flight secondary ion mass spectrometry, scanning electron microscopy and atomic force microscopy data. A semi-quantitative analysis of the electrolyte surfaces showed that the levels of surface impurities inside the electrode/electrolyte interface in close proximity to the three phase boundary have a large effect on the electrode polarisation resistance.

Original language	English
Pages (from-to)	2290-2298
Number of pages	9
Journal	Solid State Ionics
Volume	179
Issue number	39
DOIs	https://doi.org/10.1016/j.ssi.2008.08.002
State	Published - 15 Dec 2008
Externally published	Yes

Bibliographical note

Funding Information:
This work was carried of as part of the project “Efficient Conversion of Renewable Energy using Solid Oxide Cells” contract number 2058-03-0014, which is financially supported by The Danish Research Councils and the Danish Ministry of Science Technology and Innovation.

Keywords

Anode
Ni
ScYSZ
Segregation of impurities
Solid oxide fuel cell
ToF-SIMS

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ssi.2008.08.002

Cite this

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title = "Characterisation of the Ni/ScYSZ interface in a model solid oxide fuel cell anode",

abstract = "A nickel point electrode setup was used as a model of an SOFC anode on three slightly different electrolytes of zirconia stabilised by co-doping with scandia and yttria. The effect of electrolyte impurities on the electrode polarisation resistance was investigated by correlating electrochemical impedance spectroscopy data with time-of-flight secondary ion mass spectrometry, scanning electron microscopy and atomic force microscopy data. A semi-quantitative analysis of the electrolyte surfaces showed that the levels of surface impurities inside the electrode/electrolyte interface in close proximity to the three phase boundary have a large effect on the electrode polarisation resistance.",

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note = "Funding Information: This work was carried of as part of the project “Efficient Conversion of Renewable Energy using Solid Oxide Cells” contract number 2058-03-0014, which is financially supported by The Danish Research Councils and the Danish Ministry of Science Technology and Innovation. ",

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doi = "10.1016/j.ssi.2008.08.002",

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AU - Schmidt, Michael Stenbæk

AU - Hansen, Karin Vels

AU - Norrman, Kion

AU - Mogensen, Mogens

N1 - Funding Information: This work was carried of as part of the project “Efficient Conversion of Renewable Energy using Solid Oxide Cells” contract number 2058-03-0014, which is financially supported by The Danish Research Councils and the Danish Ministry of Science Technology and Innovation.

PY - 2008/12/15

Y1 - 2008/12/15

N2 - A nickel point electrode setup was used as a model of an SOFC anode on three slightly different electrolytes of zirconia stabilised by co-doping with scandia and yttria. The effect of electrolyte impurities on the electrode polarisation resistance was investigated by correlating electrochemical impedance spectroscopy data with time-of-flight secondary ion mass spectrometry, scanning electron microscopy and atomic force microscopy data. A semi-quantitative analysis of the electrolyte surfaces showed that the levels of surface impurities inside the electrode/electrolyte interface in close proximity to the three phase boundary have a large effect on the electrode polarisation resistance.

AB - A nickel point electrode setup was used as a model of an SOFC anode on three slightly different electrolytes of zirconia stabilised by co-doping with scandia and yttria. The effect of electrolyte impurities on the electrode polarisation resistance was investigated by correlating electrochemical impedance spectroscopy data with time-of-flight secondary ion mass spectrometry, scanning electron microscopy and atomic force microscopy data. A semi-quantitative analysis of the electrolyte surfaces showed that the levels of surface impurities inside the electrode/electrolyte interface in close proximity to the three phase boundary have a large effect on the electrode polarisation resistance.

KW - Anode

KW - Ni

KW - ScYSZ

KW - Segregation of impurities

KW - Solid oxide fuel cell

KW - ToF-SIMS

UR - https://www.scopus.com/pages/publications/56949099593

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DO - 10.1016/j.ssi.2008.08.002

M3 - Article

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JO - Solid State Ionics

JF - Solid State Ionics

IS - 39

ER -

Characterisation of the Ni/ScYSZ interface in a model solid oxide fuel cell anode

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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