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.

UN SDGs

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

SDG 7 Affordable and Clean Energy

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

Access to Document

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.",

keywords = "Anode, Ni, ScYSZ, Segregation of impurities, Solid oxide fuel cell, ToF-SIMS",

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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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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

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DO - 10.1016/j.ssi.2008.08.002

M3 - Article

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ER -

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

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

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