Formation of conductive oxide scale on 33NK and 47ND interconnector alloys for solid oxide fuel cells

V. A. Eremin; A.A. Solodyankin; S.A. Belyakov; A.V. Khodimchuk; A.S. Farlenkov; D.A. Krainova; N.S. Saetova; Anton V. Kuzmin; A.S. Artamonov; Robert Steinberger-Wilckens; Maxim V. Ananyev

doi:10.3390/en12244795

Formation of conductive oxide scale on 33NK and 47ND interconnector alloys for solid oxide fuel cells

V. A. Eremin, A.A. Solodyankin, S.A. Belyakov, A.V. Khodimchuk, A.S. Farlenkov, D.A. Krainova, N.S. Saetova, Anton V. Kuzmin, A.S. Artamonov, Robert Steinberger-Wilckens, Maxim V. Ananyev

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Abstract

Two grades of chromium‐free alloys were studied in order to apply them as
interconnectors for solid oxide fuel cells. The surface modification methods were proposed for each alloy with the purpose of forming of oxide scales considering the required physicochemical properties. Investigations of the structure and properties of the obtained oxide scales were performed and the efficiency of the chosen surface modification methods was approved. The samples with the surface modification exhibited higher conductivity values in comparison with the
nonmodified samples. A compatibility study of samples with surface modification and glass sealant of chosen composition was accomplished. The modified samples demonstrated good adhesion during testing and electrical resistance less than 40 mOhm/cm2 at 850 °C in air, which allowed us to
recommend these alloys with respective modified oxide scales as interconnectors for SOFC.

Original language	English
Article number	4795
Pages (from-to)	1-17
Number of pages	17
Journal	Energies
Volume	12
Issue number	24
DOIs	https://doi.org/10.3390/en12244795
Publication status	Published - 16 Dec 2019

Keywords

steel-interconnector
oxide scale
electrical resistance
solid oxide fuel cells (SOFC)
electrocrystallization
glass sealant

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Fundamental Issues of Electrical and Mechanical Interconnection Between Single SOFC Repeating Units
Steinberger-Wilckens, R.
The Royal Society
1/03/18 → 31/12/21
Project: Research Councils

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Eremin, V. A., Solodyankin, A. A., Belyakov, S. A., Khodimchuk, A. V., Farlenkov, A. S., Krainova, D. A., Saetova, N. S., Kuzmin, A. V., Artamonov, A. S., Steinberger-Wilckens, R., & Ananyev, M. V. (2019). Formation of conductive oxide scale on 33NK and 47ND interconnector alloys for solid oxide fuel cells. Energies, 12(24), 1-17. Article 4795. https://doi.org/10.3390/en12244795

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title = "Formation of conductive oxide scale on 33NK and 47ND interconnector alloys for solid oxide fuel cells",

abstract = "Two grades of chromium‐free alloys were studied in order to apply them asinterconnectors for solid oxide fuel cells. The surface modification methods were proposed for each alloy with the purpose of forming of oxide scales considering the required physicochemical properties. Investigations of the structure and properties of the obtained oxide scales were performed and the efficiency of the chosen surface modification methods was approved. The samples with the surface modification exhibited higher conductivity values in comparison with thenonmodified samples. A compatibility study of samples with surface modification and glass sealant of chosen composition was accomplished. The modified samples demonstrated good adhesion during testing and electrical resistance less than 40 mOhm/cm2 at 850 °C in air, which allowed us torecommend these alloys with respective modified oxide scales as interconnectors for SOFC.",

keywords = "steel-interconnector, oxide scale, electrical resistance, solid oxide fuel cells (SOFC), electrocrystallization, glass sealant",

author = "Eremin, {V. A.} and A.A. Solodyankin and S.A. Belyakov and A.V. Khodimchuk and A.S. Farlenkov and D.A. Krainova and N.S. Saetova and Kuzmin, {Anton V.} and A.S. Artamonov and Robert Steinberger-Wilckens and Ananyev, {Maxim V.}",

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doi = "10.3390/en12244795",

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T1 - Formation of conductive oxide scale on 33NK and 47ND interconnector alloys for solid oxide fuel cells

AU - Eremin, V. A.

AU - Solodyankin, A.A.

AU - Belyakov, S.A.

AU - Khodimchuk, A.V.

AU - Farlenkov, A.S.

AU - Krainova, D.A.

AU - Saetova, N.S.

AU - Kuzmin, Anton V.

AU - Artamonov, A.S.

AU - Steinberger-Wilckens, Robert

AU - Ananyev, Maxim V.

PY - 2019/12/16

Y1 - 2019/12/16

N2 - Two grades of chromium‐free alloys were studied in order to apply them asinterconnectors for solid oxide fuel cells. The surface modification methods were proposed for each alloy with the purpose of forming of oxide scales considering the required physicochemical properties. Investigations of the structure and properties of the obtained oxide scales were performed and the efficiency of the chosen surface modification methods was approved. The samples with the surface modification exhibited higher conductivity values in comparison with thenonmodified samples. A compatibility study of samples with surface modification and glass sealant of chosen composition was accomplished. The modified samples demonstrated good adhesion during testing and electrical resistance less than 40 mOhm/cm2 at 850 °C in air, which allowed us torecommend these alloys with respective modified oxide scales as interconnectors for SOFC.

AB - Two grades of chromium‐free alloys were studied in order to apply them asinterconnectors for solid oxide fuel cells. The surface modification methods were proposed for each alloy with the purpose of forming of oxide scales considering the required physicochemical properties. Investigations of the structure and properties of the obtained oxide scales were performed and the efficiency of the chosen surface modification methods was approved. The samples with the surface modification exhibited higher conductivity values in comparison with thenonmodified samples. A compatibility study of samples with surface modification and glass sealant of chosen composition was accomplished. The modified samples demonstrated good adhesion during testing and electrical resistance less than 40 mOhm/cm2 at 850 °C in air, which allowed us torecommend these alloys with respective modified oxide scales as interconnectors for SOFC.

KW - steel-interconnector

KW - oxide scale

KW - electrical resistance

KW - solid oxide fuel cells (SOFC)

KW - electrocrystallization

KW - glass sealant

U2 - 10.3390/en12244795

DO - 10.3390/en12244795

M3 - Article

SN - 1996-1073

VL - 12

SP - 1

EP - 17

JO - Energies

JF - Energies

IS - 24

M1 - 4795

ER -

Formation of conductive oxide scale on 33NK and 47ND interconnector alloys for solid oxide fuel cells

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Fundamental Issues of Electrical and Mechanical Interconnection Between Single SOFC Repeating Units

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