Prevention of SOFC cathode degradation in contact with Cr-containing alloy

K. Fujita; K. Ogasawara; Y. Matsuzaki; T. Sakurai

doi:10.1016/j.jpowsour.2003.12.051

Prevention of SOFC cathode degradation in contact with Cr-containing alloy

K. Fujita, K. Ogasawara, Y. Matsuzaki, T. Sakurai

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

94 Citations (Scopus)

Abstract

The effects of coating materials on Cr-containing alloy separators were examined for preventing the degradation of solid oxide fuel cell (SOFC) performance. Various oxide materials (YSZ, Y₂O₃, La ₂O₃, LaAlO₃ and (La,Sr)CoO₃, LSCO) were coated on the alloys, and investigated for the degree of Cr-poisoning using a half-cell measurement method. In these oxides, (La,Sr)CoO₃ coating was found to be effective for preventing the degradation. The LSCO-coated alloy was analyzed by X-ray diffractometry (XRD), scanning electron microscope (SEM) and energy dispersion X-ray (EDX) analysis. The interface between the cathode and the electrolyte was examined by electron probe micro analysis. Consequently, it was proved that a LSCO coating controls the growth of the Cr ₂O₃ oxide layer on the Cr-containing alloy surface. And the effects of LSCO coating were further confirmed by a single-cell stack test.

Original language	English
Pages (from-to)	261-269
Number of pages	9
Journal	Journal of Power Sources
Volume	131
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jpowsour.2003.12.051
Publication status	Published - May 14 2004
Externally published	Yes
Event	Selected Papers Presented at the Eigth Grove Fuel Cell Symposium - London, United Kingdom Duration: Sep 24 2003 → Sep 26 2003

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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

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10.1016/j.jpowsour.2003.12.051

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title = "Prevention of SOFC cathode degradation in contact with Cr-containing alloy",

abstract = "The effects of coating materials on Cr-containing alloy separators were examined for preventing the degradation of solid oxide fuel cell (SOFC) performance. Various oxide materials (YSZ, Y2O3, La 2O3, LaAlO3 and (La,Sr)CoO3, LSCO) were coated on the alloys, and investigated for the degree of Cr-poisoning using a half-cell measurement method. In these oxides, (La,Sr)CoO3 coating was found to be effective for preventing the degradation. The LSCO-coated alloy was analyzed by X-ray diffractometry (XRD), scanning electron microscope (SEM) and energy dispersion X-ray (EDX) analysis. The interface between the cathode and the electrolyte was examined by electron probe micro analysis. Consequently, it was proved that a LSCO coating controls the growth of the Cr 2O3 oxide layer on the Cr-containing alloy surface. And the effects of LSCO coating were further confirmed by a single-cell stack test.",

author = "K. Fujita and K. Ogasawara and Y. Matsuzaki and T. Sakurai",

note = "Funding Information: Part of this work was performed as R&D program of New Energy and Development Organization (NEDO). We would like to thank NEDO and Ministry of Economy, Trade and Industry (METI) for their advice and financial support. ; Selected Papers Presented at the Eigth Grove Fuel Cell Symposium ; Conference date: 24-09-2003 Through 26-09-2003",

year = "2004",

month = may,

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doi = "10.1016/j.jpowsour.2003.12.051",

language = "English",

volume = "131",

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journal = "Journal of Power Sources",

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TY - JOUR

T1 - Prevention of SOFC cathode degradation in contact with Cr-containing alloy

AU - Fujita, K.

AU - Ogasawara, K.

AU - Matsuzaki, Y.

AU - Sakurai, T.

N1 - Funding Information: Part of this work was performed as R&D program of New Energy and Development Organization (NEDO). We would like to thank NEDO and Ministry of Economy, Trade and Industry (METI) for their advice and financial support.

PY - 2004/5/14

Y1 - 2004/5/14

N2 - The effects of coating materials on Cr-containing alloy separators were examined for preventing the degradation of solid oxide fuel cell (SOFC) performance. Various oxide materials (YSZ, Y2O3, La 2O3, LaAlO3 and (La,Sr)CoO3, LSCO) were coated on the alloys, and investigated for the degree of Cr-poisoning using a half-cell measurement method. In these oxides, (La,Sr)CoO3 coating was found to be effective for preventing the degradation. The LSCO-coated alloy was analyzed by X-ray diffractometry (XRD), scanning electron microscope (SEM) and energy dispersion X-ray (EDX) analysis. The interface between the cathode and the electrolyte was examined by electron probe micro analysis. Consequently, it was proved that a LSCO coating controls the growth of the Cr 2O3 oxide layer on the Cr-containing alloy surface. And the effects of LSCO coating were further confirmed by a single-cell stack test.

AB - The effects of coating materials on Cr-containing alloy separators were examined for preventing the degradation of solid oxide fuel cell (SOFC) performance. Various oxide materials (YSZ, Y2O3, La 2O3, LaAlO3 and (La,Sr)CoO3, LSCO) were coated on the alloys, and investigated for the degree of Cr-poisoning using a half-cell measurement method. In these oxides, (La,Sr)CoO3 coating was found to be effective for preventing the degradation. The LSCO-coated alloy was analyzed by X-ray diffractometry (XRD), scanning electron microscope (SEM) and energy dispersion X-ray (EDX) analysis. The interface between the cathode and the electrolyte was examined by electron probe micro analysis. Consequently, it was proved that a LSCO coating controls the growth of the Cr 2O3 oxide layer on the Cr-containing alloy surface. And the effects of LSCO coating were further confirmed by a single-cell stack test.

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DO - 10.1016/j.jpowsour.2003.12.051

M3 - Conference article

AN - SCOPUS:2342464380

VL - 131

SP - 261

EP - 269

JO - Journal of Power Sources

JF - Journal of Power Sources

SN - 0378-7753

IS - 1-2

T2 - Selected Papers Presented at the Eigth Grove Fuel Cell Symposium

Y2 - 24 September 2003 through 26 September 2003

ER -

Prevention of SOFC cathode degradation in contact with Cr-containing alloy

Abstract

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