LaNi1-xCoxO3-δ (x=0.4 to 0.7) cathodes for solid oxide fuel cells by infiltration

Aleksander Chrzan; Simona Ovtar; Ming Chen

doi:10.1088/1757-899X/104/1/012019

LaNi_1-xCo_xO_3-δ (x=0.4 to 0.7) cathodes for solid oxide fuel cells by infiltration

Aleksander Chrzan, Simona Ovtar, Ming Chen

Department of Energy Conversion and Storage

Gdańsk University of Technology

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

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Abstract

Performance of LaNi_1-xCoxO_3-δ (LNC) (x=0.4 to 0.7) as a cathode in solid oxide fuel cell (SOFC) is evaluated. Symmetrical cathode/electrolyte/cathode cells for electrochemical testing are prepared by infiltration of yttria stabilized zirconia (YSZ) backbone with LNC solutions. It is showed that the cathode infiltrated with LaNi_0.5Co_0.5O_3-δ (LNC155) has the lowest polarization resistance and activation energy, 197 mΩ cm² at 600 °C and 0.91 eV, respectively. Therefore it is the most promising material of the LNC group for electrochemical applications. X-ray diffraction analysis revealed that none of the materials is single-phased after heat treatment at 800 °C as they contain residues of La₂O₃ and La₂NiO_4-δ.

Original language	English
Article number	012019
Journal	I O P Conference Series: Materials Science and Engineering
Volume	104
Number of pages	6
ISSN	1757-8981
DOIs	https://doi.org/10.1088/1757-899X/104/1/012019
Publication status	Published - 2015
Event	39th International Microelectronics and Packaging Conference - Gdansk, Poland Duration: 20 Sept 2015 → 23 Sept 2015 Conference number: 39

Conference

Conference	39th International Microelectronics and Packaging Conference
Number	39
Country/Territory	Poland
City	Gdansk
Period	20/09/2015 → 23/09/2015

Keywords

ENGINEERING,
NANOSCIENCE
MATERIALS
GD-DOPED CERIA

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10.1088/1757-899X/104/1/012019

LaNi1 xFinal published version, 1.23 MB

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title = "LaNi1-xCoxO3-δ (x=0.4 to 0.7) cathodes for solid oxide fuel cells by infiltration",

abstract = "Performance of LaNi1-xCoxO3-δ (LNC) (x=0.4 to 0.7) as a cathode in solid oxide fuel cell (SOFC) is evaluated. Symmetrical cathode/electrolyte/cathode cells for electrochemical testing are prepared by infiltration of yttria stabilized zirconia (YSZ) backbone with LNC solutions. It is showed that the cathode infiltrated with LaNi0.5Co0.5O3-δ (LNC155) has the lowest polarization resistance and activation energy, 197 mΩ cm2 at 600 °C and 0.91 eV, respectively. Therefore it is the most promising material of the LNC group for electrochemical applications. X-ray diffraction analysis revealed that none of the materials is single-phased after heat treatment at 800 °C as they contain residues of La2O3 and La2NiO4-δ.",

keywords = "ENGINEERING,, NANOSCIENCE, MATERIALS, GD-DOPED CERIA",

author = "Aleksander Chrzan and Simona Ovtar and Ming Chen",

year = "2015",

doi = "10.1088/1757-899X/104/1/012019",

language = "English",

volume = "104",

journal = "I O P Conference Series: Materials Science and Engineering",

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publisher = "IOP Publishing",

note = "39th International Microelectronics and Packaging Conference, IMAPS Poland 2015 ; Conference date: 20-09-2015 Through 23-09-2015",

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TY - JOUR

T1 - LaNi1-xCoxO3-δ (x=0.4 to 0.7) cathodes for solid oxide fuel cells by infiltration

AU - Chrzan, Aleksander

AU - Ovtar, Simona

AU - Chen, Ming

N1 - Conference code: 39

PY - 2015

Y1 - 2015

N2 - Performance of LaNi1-xCoxO3-δ (LNC) (x=0.4 to 0.7) as a cathode in solid oxide fuel cell (SOFC) is evaluated. Symmetrical cathode/electrolyte/cathode cells for electrochemical testing are prepared by infiltration of yttria stabilized zirconia (YSZ) backbone with LNC solutions. It is showed that the cathode infiltrated with LaNi0.5Co0.5O3-δ (LNC155) has the lowest polarization resistance and activation energy, 197 mΩ cm2 at 600 °C and 0.91 eV, respectively. Therefore it is the most promising material of the LNC group for electrochemical applications. X-ray diffraction analysis revealed that none of the materials is single-phased after heat treatment at 800 °C as they contain residues of La2O3 and La2NiO4-δ.

AB - Performance of LaNi1-xCoxO3-δ (LNC) (x=0.4 to 0.7) as a cathode in solid oxide fuel cell (SOFC) is evaluated. Symmetrical cathode/electrolyte/cathode cells for electrochemical testing are prepared by infiltration of yttria stabilized zirconia (YSZ) backbone with LNC solutions. It is showed that the cathode infiltrated with LaNi0.5Co0.5O3-δ (LNC155) has the lowest polarization resistance and activation energy, 197 mΩ cm2 at 600 °C and 0.91 eV, respectively. Therefore it is the most promising material of the LNC group for electrochemical applications. X-ray diffraction analysis revealed that none of the materials is single-phased after heat treatment at 800 °C as they contain residues of La2O3 and La2NiO4-δ.

KW - ENGINEERING,

KW - NANOSCIENCE

KW - MATERIALS

KW - GD-DOPED CERIA

U2 - 10.1088/1757-899X/104/1/012019

DO - 10.1088/1757-899X/104/1/012019

M3 - Journal article

SN - 1757-8981

VL - 104

JO - I O P Conference Series: Materials Science and Engineering

JF - I O P Conference Series: Materials Science and Engineering

M1 - 012019

T2 - 39th International Microelectronics and Packaging Conference

Y2 - 20 September 2015 through 23 September 2015

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