Conductivity and electrochemical characterization of PrFe1-xNixO3-δ at high temperature

Shin-Ichi Hashimoto; Kent Kammer Hansen; Finn Willy Poulsen; Mogens Bjerg Mogensen

doi:10.1016/j.jallcom.2006.02.068

Conductivity and electrochemical characterization of PrFe_1-xNi_xO_3-δ at high temperature

Shin-Ichi Hashimoto, Kent Kammer Hansen, Finn Willy Poulsen, Mogens Bjerg Mogensen

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

Abstract

PrFe(1-x)NixO(3)- (x=0.4-0.6) compounds were synthesized and characterized by powder XRD, electrical conductivity and electrochemical impedance spectroscopy on point electrodes on a Ce0.9Gd0.1O2-delta (CGO10) electrolyte. As a reference, the electrochemical performance of LaFe(0.4)AM(0.6)O(3-delta) was also measured. The main phase in the PrFe1-xNixO3-delta series was perovskite-type structure and belonged to the orthorhombic crystal system. The conductivities are fairly high, e.g. around 220 S cm(-1) at 873 K for the x = 0.4 compound. The electrochemical performance of the PrFe(1-x)NixO(3-delta) series is similar to that of La0.6Sr0.4Fe0.8Co0.2O3-delta, which is a good candidate as a cathode material for SOFCs operating at intermediate temperature. The electrochemical performance of LaFe0.4Ni0.6O3-delta was even higher than that of the PrFe1-xNixO3-delta, series and the polarization resistance was 0.14 Omega cm(2) at 1073 K measured on a point electrode. (c) 2006 Elsevier B.V. All rights reserved.

Original language	English
Journal	Journal of Alloys and Compounds
Volume	428
Issue number	1-2
Pages (from-to)	256-261
ISSN	0925-8388
DOIs	https://doi.org/10.1016/j.jallcom.2006.02.068
Publication status	Published - 2007

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@article{361c500e674e43138b62a0c90e19db32,

title = "Conductivity and electrochemical characterization of PrFe1-xNixO3-δ at high temperature",

abstract = "PrFe(1-x)NixO(3)- (x=0.4-0.6) compounds were synthesized and characterized by powder XRD, electrical conductivity and electrochemical impedance spectroscopy on point electrodes on a Ce0.9Gd0.1O2-delta (CGO10) electrolyte. As a reference, the electrochemical performance of LaFe(0.4)AM(0.6)O(3-delta) was also measured. The main phase in the PrFe1-xNixO3-delta series was perovskite-type structure and belonged to the orthorhombic crystal system. The conductivities are fairly high, e.g. around 220 S cm(-1) at 873 K for the x = 0.4 compound. The electrochemical performance of the PrFe(1-x)NixO(3-delta) series is similar to that of La0.6Sr0.4Fe0.8Co0.2O3-delta, which is a good candidate as a cathode material for SOFCs operating at intermediate temperature. The electrochemical performance of LaFe0.4Ni0.6O3-delta was even higher than that of the PrFe1-xNixO3-delta, series and the polarization resistance was 0.14 Omega cm(2) at 1073 K measured on a point electrode. (c) 2006 Elsevier B.V. All rights reserved.",

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author = "Shin-Ichi Hashimoto and {Kammer Hansen}, Kent and Poulsen, {Finn Willy} and Mogensen, {Mogens Bjerg}",

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T1 - Conductivity and electrochemical characterization of PrFe1-xNixO3-δ at high temperature

AU - Hashimoto, Shin-Ichi

AU - Kammer Hansen, Kent

AU - Poulsen, Finn Willy

AU - Mogensen, Mogens Bjerg

PY - 2007

Y1 - 2007

N2 - PrFe(1-x)NixO(3)- (x=0.4-0.6) compounds were synthesized and characterized by powder XRD, electrical conductivity and electrochemical impedance spectroscopy on point electrodes on a Ce0.9Gd0.1O2-delta (CGO10) electrolyte. As a reference, the electrochemical performance of LaFe(0.4)AM(0.6)O(3-delta) was also measured. The main phase in the PrFe1-xNixO3-delta series was perovskite-type structure and belonged to the orthorhombic crystal system. The conductivities are fairly high, e.g. around 220 S cm(-1) at 873 K for the x = 0.4 compound. The electrochemical performance of the PrFe(1-x)NixO(3-delta) series is similar to that of La0.6Sr0.4Fe0.8Co0.2O3-delta, which is a good candidate as a cathode material for SOFCs operating at intermediate temperature. The electrochemical performance of LaFe0.4Ni0.6O3-delta was even higher than that of the PrFe1-xNixO3-delta, series and the polarization resistance was 0.14 Omega cm(2) at 1073 K measured on a point electrode. (c) 2006 Elsevier B.V. All rights reserved.

AB - PrFe(1-x)NixO(3)- (x=0.4-0.6) compounds were synthesized and characterized by powder XRD, electrical conductivity and electrochemical impedance spectroscopy on point electrodes on a Ce0.9Gd0.1O2-delta (CGO10) electrolyte. As a reference, the electrochemical performance of LaFe(0.4)AM(0.6)O(3-delta) was also measured. The main phase in the PrFe1-xNixO3-delta series was perovskite-type structure and belonged to the orthorhombic crystal system. The conductivities are fairly high, e.g. around 220 S cm(-1) at 873 K for the x = 0.4 compound. The electrochemical performance of the PrFe(1-x)NixO(3-delta) series is similar to that of La0.6Sr0.4Fe0.8Co0.2O3-delta, which is a good candidate as a cathode material for SOFCs operating at intermediate temperature. The electrochemical performance of LaFe0.4Ni0.6O3-delta was even higher than that of the PrFe1-xNixO3-delta, series and the polarization resistance was 0.14 Omega cm(2) at 1073 K measured on a point electrode. (c) 2006 Elsevier B.V. All rights reserved.

KW - Brændselsceller

KW - Brint

U2 - 10.1016/j.jallcom.2006.02.068

DO - 10.1016/j.jallcom.2006.02.068

M3 - Journal article

SN - 0925-8388

VL - 428

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EP - 261

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2