Effects of impurities on the degradation and long-term stability for solid oxide fuel cells
The effect of impurities on the degradation of performances was investigated for the flatten tube type SOFC stack. The durability tests of 20-cells stack were conducted at 750 °C (1023 K) with dry H 2 for more than 5000 h under a constant current density of 0.3 A cm −2. The voltage loss showed a lin...
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| Veröffentlicht in: | Journal of power sources 2009-08, Vol.193 (1), p.194-198 |
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| container_title | Journal of power sources |
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| creator | Horita, Teruhisa Kishimoto, Haruo Yamaji, Katsuhiko Brito, Manuel E. Xiong, Yueping Yokokawa, Harumi Hori, Yuichi Miyachi, Itaru |
| description | The effect of impurities on the degradation of performances was investigated for the flatten tube type SOFC stack. The durability tests of 20-cells stack were conducted at 750
°C (1023
K) with dry H
2 for more than 5000
h under a constant current density of 0.3
A
cm
−2. The voltage loss showed a linear relationship between voltage loss and operation time (about 1.5%/1000
h). The ohmic resistance increased with operation time while the polarization resistance showed constant values. After the long-term operation test, the concentration levels of impurities were measured at cathode and interlayer by secondary ion mass spectrometry (SIMS). The concentrations of several elements were successfully determined in ppm levels. The concentrations of several elements increased with operation time (Na, Al, Si, and Cr), which suggested the transports and depositions on the cell component surface. The increase of resistance and impurity concentration at the interlayer were estimated from the literature data and SIMS impurity analysis. |
| doi_str_mv | 10.1016/j.jpowsour.2008.10.127 |
| format | Article |
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°C (1023
K) with dry H
2 for more than 5000
h under a constant current density of 0.3
A
cm
−2. The voltage loss showed a linear relationship between voltage loss and operation time (about 1.5%/1000
h). The ohmic resistance increased with operation time while the polarization resistance showed constant values. After the long-term operation test, the concentration levels of impurities were measured at cathode and interlayer by secondary ion mass spectrometry (SIMS). The concentrations of several elements were successfully determined in ppm levels. The concentrations of several elements increased with operation time (Na, Al, Si, and Cr), which suggested the transports and depositions on the cell component surface. The increase of resistance and impurity concentration at the interlayer were estimated from the literature data and SIMS impurity analysis.</description><identifier>ISSN: 0378-7753</identifier><identifier>EISSN: 1873-2755</identifier><identifier>DOI: 10.1016/j.jpowsour.2008.10.127</identifier><identifier>CODEN: JPSODZ</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Applied sciences ; Degradation ; Durability ; Energy ; Energy. Thermal use of fuels ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology ; Fuel cells ; Impurity ; SIMS ; SOFC ; Stack</subject><ispartof>Journal of power sources, 2009-08, Vol.193 (1), p.194-198</ispartof><rights>2008 Elsevier B.V.</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c507t-9391b6df8d23ac03db8bd85a7aa7b31b9475310a0a4d62a53094e89235d2f4913</citedby><cites>FETCH-LOGICAL-c507t-9391b6df8d23ac03db8bd85a7aa7b31b9475310a0a4d62a53094e89235d2f4913</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jpowsour.2008.10.127$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>310,311,315,781,785,790,791,3551,23935,23936,25145,27929,27930,46000</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21814976$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Horita, Teruhisa</creatorcontrib><creatorcontrib>Kishimoto, Haruo</creatorcontrib><creatorcontrib>Yamaji, Katsuhiko</creatorcontrib><creatorcontrib>Brito, Manuel E.</creatorcontrib><creatorcontrib>Xiong, Yueping</creatorcontrib><creatorcontrib>Yokokawa, Harumi</creatorcontrib><creatorcontrib>Hori, Yuichi</creatorcontrib><creatorcontrib>Miyachi, Itaru</creatorcontrib><title>Effects of impurities on the degradation and long-term stability for solid oxide fuel cells</title><title>Journal of power sources</title><description>The effect of impurities on the degradation of performances was investigated for the flatten tube type SOFC stack. The durability tests of 20-cells stack were conducted at 750
°C (1023
K) with dry H
2 for more than 5000
h under a constant current density of 0.3
A
cm
−2. The voltage loss showed a linear relationship between voltage loss and operation time (about 1.5%/1000
h). The ohmic resistance increased with operation time while the polarization resistance showed constant values. After the long-term operation test, the concentration levels of impurities were measured at cathode and interlayer by secondary ion mass spectrometry (SIMS). The concentrations of several elements were successfully determined in ppm levels. The concentrations of several elements increased with operation time (Na, Al, Si, and Cr), which suggested the transports and depositions on the cell component surface. The increase of resistance and impurity concentration at the interlayer were estimated from the literature data and SIMS impurity analysis.</description><subject>Applied sciences</subject><subject>Degradation</subject><subject>Durability</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</subject><subject>Exact sciences and technology</subject><subject>Fuel cells</subject><subject>Impurity</subject><subject>SIMS</subject><subject>SOFC</subject><subject>Stack</subject><issn>0378-7753</issn><issn>1873-2755</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFUctuFDEQtFCQ2AR-AflCbrNpP2Y8voGiAJEi5RJOHKweP4JXs-PF9kDy98ywSa45tapU3VWqJuQjgy0D1l3strtD-lvSnLccoN-uPFdvyIb1SjRcte0J2YBQfaNUK96R01J2AMCYgg35eRWCt7XQFGjcH-Yca_QLmmj95anz9xkd1rhgnBwd03TfVJ_3tFQc4hjrIw0p05LG6Gh6iM7TMPuRWj-O5T15G3As_sPTPCM_vl7dXX5vbm6_XV9-uWlsC6o2Wmg2dC70jgu0INzQD65vUSGqQbBByyU2AwSUruPYCtDS95qL1vEgNRNn5Px495DT79mXavaxrAlw8mkuRkippYTuVSGHTumOwyLsjkKbUynZB3PIcY_50TAwa-lmZ55LN2vp_3mulsVPTw5YLI4h42RjednmrGdSqzXJ56POL738iT6bYqOfrHcxL-8wLsXXrP4B2cqcGQ</recordid><startdate>20090801</startdate><enddate>20090801</enddate><creator>Horita, Teruhisa</creator><creator>Kishimoto, Haruo</creator><creator>Yamaji, Katsuhiko</creator><creator>Brito, Manuel E.</creator><creator>Xiong, Yueping</creator><creator>Yokokawa, Harumi</creator><creator>Hori, Yuichi</creator><creator>Miyachi, Itaru</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20090801</creationdate><title>Effects of impurities on the degradation and long-term stability for solid oxide fuel cells</title><author>Horita, Teruhisa ; Kishimoto, Haruo ; Yamaji, Katsuhiko ; Brito, Manuel E. ; Xiong, Yueping ; Yokokawa, Harumi ; Hori, Yuichi ; Miyachi, Itaru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c507t-9391b6df8d23ac03db8bd85a7aa7b31b9475310a0a4d62a53094e89235d2f4913</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Degradation</topic><topic>Durability</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc</topic><topic>Exact sciences and technology</topic><topic>Fuel cells</topic><topic>Impurity</topic><topic>SIMS</topic><topic>SOFC</topic><topic>Stack</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Horita, Teruhisa</creatorcontrib><creatorcontrib>Kishimoto, Haruo</creatorcontrib><creatorcontrib>Yamaji, Katsuhiko</creatorcontrib><creatorcontrib>Brito, Manuel E.</creatorcontrib><creatorcontrib>Xiong, Yueping</creatorcontrib><creatorcontrib>Yokokawa, Harumi</creatorcontrib><creatorcontrib>Hori, Yuichi</creatorcontrib><creatorcontrib>Miyachi, Itaru</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of power sources</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Horita, Teruhisa</au><au>Kishimoto, Haruo</au><au>Yamaji, Katsuhiko</au><au>Brito, Manuel E.</au><au>Xiong, Yueping</au><au>Yokokawa, Harumi</au><au>Hori, Yuichi</au><au>Miyachi, Itaru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of impurities on the degradation and long-term stability for solid oxide fuel cells</atitle><jtitle>Journal of power sources</jtitle><date>2009-08-01</date><risdate>2009</risdate><volume>193</volume><issue>1</issue><spage>194</spage><epage>198</epage><pages>194-198</pages><issn>0378-7753</issn><eissn>1873-2755</eissn><coden>JPSODZ</coden><abstract>The effect of impurities on the degradation of performances was investigated for the flatten tube type SOFC stack. The durability tests of 20-cells stack were conducted at 750
°C (1023
K) with dry H
2 for more than 5000
h under a constant current density of 0.3
A
cm
−2. The voltage loss showed a linear relationship between voltage loss and operation time (about 1.5%/1000
h). The ohmic resistance increased with operation time while the polarization resistance showed constant values. After the long-term operation test, the concentration levels of impurities were measured at cathode and interlayer by secondary ion mass spectrometry (SIMS). The concentrations of several elements were successfully determined in ppm levels. The concentrations of several elements increased with operation time (Na, Al, Si, and Cr), which suggested the transports and depositions on the cell component surface. The increase of resistance and impurity concentration at the interlayer were estimated from the literature data and SIMS impurity analysis.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jpowsour.2008.10.127</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of power sources, 2009-08, Vol.193 (1), p.194-198 |
| issn | 0378-7753 1873-2755 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences Degradation Durability Energy Energy. Thermal use of fuels Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc Exact sciences and technology Fuel cells Impurity SIMS SOFC Stack |
| title | Effects of impurities on the degradation and long-term stability for solid oxide fuel cells |
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