| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2011-09-22 |
| タイトル |
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|
タイトル |
Applicability of extra low interstitials ferritic stainless steels for bipolar plates of proton exchange membrane fuel cells |
| キーワード |
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主題Scheme |
Other |
|
主題 |
Ferritic stainless steel |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Corrosion |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Bipolar plates |
| キーワード |
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|
主題Scheme |
Other |
|
主題 |
Fuel cell |
| キーワード |
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|
主題Scheme |
Other |
|
主題 |
XPS |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Kumagai, Masanobu
Myung, Seung-Taek
Ichikawa, Takuma
Yashiro, Hitoshi
|
| 著者(機関) |
|
|
値 |
Taiyo Stainless Spring Co., Ltd. |
| 著者(機関) |
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|
値 |
Department of Chemical Engineering, Iwate University |
| 著者(機関) |
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値 |
Department of Chemical Engineering, Iwate University |
| 著者(機関) |
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|
値 |
Department of Chemical Engineering, Iwate University |
| 登録日 |
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日付 |
2011-09-22 |
| 書誌情報 |
Journal of Power Sources
巻 195,
号 21,
p. 7181-7186,
発行日 2010-11-01
|
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0378-7753 |
| Abstract |
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内容記述タイプ |
Other |
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内容記述 |
Ferritic stainless steels can be attractive bipolar plate materials of proton exchange membrane fuel cells (PEMFC), provided that the stainless steels show sufficient corrosion resistance, for instance, by eliminating interstitial elements such as carbon and nitrogen. In the present study, thus, ferritic stainless steels (19Cr2Mo and 22Cr2Mo) with extra low interstitials (ELI) are evaluated to determine the required level of chromium content to apply them for PEMFC bipolar plates. In a simulated PEMFC environment (0.05 M SO42− (pH 3.3) + 2 ppm F− solution at 353 K), the 22Cr2Mo stainless steel showed lower current density during the polarization in comparison with the 19Cr2Mo one. The polarization behavior of the 22Cr2Mo stainless steel resembles that of the type 316 one (17Cr12Ni2Mo). Similar values of interfacial contact resistance (ICR) are observed for both ferritic stainless steels. The 22Cr2Mo stainless steel bipolar plate is found to be stable throughout the cell operation, while the 19Cr2Mo stainless steel corroded within 1000 h. After the cell operation, the 22Cr2Mo stainless steel retains the chromium enriched passive film, while the chromium enriched surface film is not found for the 19Cr2Mo one, showing iron oxide/hydroxide based film. X-ray fluorescence (XRF) analysis of the membrane electrode assemblies (MEAs) after the cell operation indicates that the 22Cr2Mo stainless steel was less contaminated with iron species. The above results suggest that the 22Cr2Mo stainless steel can be applicable to bipolar plates for PEMFC, especially 22 mass% of chromium content in ferritic stainless steel with ELI system is, at least, demanded to ensure stable cell performance. |
| 出版者 |
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出版者 |
Elsevier B.V. |
| 権利 |
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|
権利情報 |
© 2010 Elsevier B.V. |
| DOI |
|
|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
10.1016/j.jpowsour.2010.05.025 |
| 著者版フラグ |
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出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
jps-v195i21p7181-7186.pdf (543.1 kB)
