Determination of chromium concentration in solid oxide fuel cell cathodes: (La,Sr) MnO3 and (La,Sr) FeO3

Teruhisa Horita; Yueping Xiong; Masashi Yoshinaga; Haruo Kishimoto; Katsuhiko Yamaji; Manuel E. Brito; Harumi Yokokawa

doi:10.1149/1.3193701

Determination of chromium concentration in solid oxide fuel cell cathodes: (La,Sr) MnO₃ and (La,Sr) FeO₃

Teruhisa Horita^*
, Yueping Xiong
, Masashi Yoshinaga
, Haruo Kishimoto
, Katsuhiko Yamaji
, Manuel E. Brito
, Harumi Yokokawa

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

National Institute of Advanced Industrial Science and Technology
Tokyo City University

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

39 Scopus citations

Abstract

Chromium poisoning was investigated at the cathode/ Gd0.2 Ce0.8 O1.9 electrolyte interfaces under cathodic polarization by using a preoxidized Cr metal. The concentration levels of Cr in the porous cathodes [La0.8 Sr0.2 MnO₃ (LSM) and La0.8 Sr0.2 FeO₃ (LSF)] was first determined by secondary ion mass spectrometry. Maxima of Cr concentration were observed at the LSM/electrolyte interfaces (about 1000 ppm). On the other hand, no maxima of Cr concentration were observed with homogeneous distribution of Cr (1000-1700 ppm). The amount of Cr deposited in the LSF cathode is estimated to be about 21% of the supplied Cr and is about 1.6 times higher in the LSM.

Original language	English
Pages (from-to)	B146-B149
Journal	Electrochemical and Solid-State Letters
Volume	12
Issue number	10
DOIs	https://doi.org/10.1149/1.3193701
State	Published - 2009

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title = "Determination of chromium concentration in solid oxide fuel cell cathodes: (La,Sr) MnO3 and (La,Sr) FeO3",

abstract = "Chromium poisoning was investigated at the cathode/ Gd0.2 Ce0.8 O1.9 electrolyte interfaces under cathodic polarization by using a preoxidized Cr metal. The concentration levels of Cr in the porous cathodes [La0.8 Sr0.2 MnO3 (LSM) and La0.8 Sr0.2 FeO3 (LSF)] was first determined by secondary ion mass spectrometry. Maxima of Cr concentration were observed at the LSM/electrolyte interfaces (about 1000 ppm). On the other hand, no maxima of Cr concentration were observed with homogeneous distribution of Cr (1000-1700 ppm). The amount of Cr deposited in the LSF cathode is estimated to be about 21\% of the supplied Cr and is about 1.6 times higher in the LSM.",

author = "Teruhisa Horita and Yueping Xiong and Masashi Yoshinaga and Haruo Kishimoto and Katsuhiko Yamaji and Brito, \{Manuel E.\} and Harumi Yokokawa",

year = "2009",

doi = "10.1149/1.3193701",

language = "英语",

volume = "12",

pages = "B146--B149",

journal = "Electrochemical and Solid-State Letters",

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number = "10",

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TY - JOUR

T1 - Determination of chromium concentration in solid oxide fuel cell cathodes

T2 - (La,Sr) MnO3 and (La,Sr) FeO3

AU - Horita, Teruhisa

AU - Xiong, Yueping

AU - Yoshinaga, Masashi

AU - Kishimoto, Haruo

AU - Yamaji, Katsuhiko

AU - Brito, Manuel E.

AU - Yokokawa, Harumi

PY - 2009

Y1 - 2009

N2 - Chromium poisoning was investigated at the cathode/ Gd0.2 Ce0.8 O1.9 electrolyte interfaces under cathodic polarization by using a preoxidized Cr metal. The concentration levels of Cr in the porous cathodes [La0.8 Sr0.2 MnO3 (LSM) and La0.8 Sr0.2 FeO3 (LSF)] was first determined by secondary ion mass spectrometry. Maxima of Cr concentration were observed at the LSM/electrolyte interfaces (about 1000 ppm). On the other hand, no maxima of Cr concentration were observed with homogeneous distribution of Cr (1000-1700 ppm). The amount of Cr deposited in the LSF cathode is estimated to be about 21% of the supplied Cr and is about 1.6 times higher in the LSM.

AB - Chromium poisoning was investigated at the cathode/ Gd0.2 Ce0.8 O1.9 electrolyte interfaces under cathodic polarization by using a preoxidized Cr metal. The concentration levels of Cr in the porous cathodes [La0.8 Sr0.2 MnO3 (LSM) and La0.8 Sr0.2 FeO3 (LSF)] was first determined by secondary ion mass spectrometry. Maxima of Cr concentration were observed at the LSM/electrolyte interfaces (about 1000 ppm). On the other hand, no maxima of Cr concentration were observed with homogeneous distribution of Cr (1000-1700 ppm). The amount of Cr deposited in the LSF cathode is estimated to be about 21% of the supplied Cr and is about 1.6 times higher in the LSM.

UR - https://www.scopus.com/pages/publications/68949161683

U2 - 10.1149/1.3193701

DO - 10.1149/1.3193701

M3 - 文章

AN - SCOPUS:68949161683

SN - 1099-0062

VL - 12

SP - B146-B149

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 10

ER -

Determination of chromium concentration in solid oxide fuel cell cathodes: (La,Sr) MnO₃ and (La,Sr) FeO₃

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