Effect of interconnect coating procedure on solid oxide fuel cell performance
[Display omitted] •Higher packing for EPD coating of (Mn,Co)3O4 from isopropanol compared to ethanol.•Higher density of (Mn,Co)3O4 at dual-atmosphere sintering compared to air-sintering.•A dense EPD coating on Cr-forming steel prevented poisoning and degradation of SOFC. Chromium (Cr) species vapori...
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| Veröffentlicht in: | Materials letters 2020-01, Vol.259, p.126898, Article 126898 |
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| creator | Abdoli, Hamid Molin, Sebastian Farnoush, Hamidreza |
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•Higher packing for EPD coating of (Mn,Co)3O4 from isopropanol compared to ethanol.•Higher density of (Mn,Co)3O4 at dual-atmosphere sintering compared to air-sintering.•A dense EPD coating on Cr-forming steel prevented poisoning and degradation of SOFC.
Chromium (Cr) species vaporizing from chromia-forming alloy interconnects is known as a source of degradation in solid oxide fuel cell (SOFC) stacks called “cathode poisoning”. (Mn,Co)3O4 spinel coatings offer good protection against Cr evaporation during operation. In this study, Crofer 22 APU steel interconnects were electrophoretically deposited in different mediums to obtain high packing of green coating layer. The optimized sample was then sintered in air-atmosphere or dual-atmospheres (reducing-oxidizing). Anode-supported cells were exposed from cathode side to bare or coated interconnects for 100 h at 800 °C. The electrochemical performances of aged cells were compared at 800 °C. Due to higher density coating obtained by dual-atmospheres sintering process, the exposed cell showed performance similar to non-poisoned cell (0.95–0.98 W/cm2). The cell exposed to air-atmosphere sintered coating interconnect showed lower output power (0.75 W/cm2) due to coating lower density. The cell exposed to uncoated interconnect exhibited considerable degradation and the lowest power (0.66 W/cm2). |
| doi_str_mv | 10.1016/j.matlet.2019.126898 |
| format | Article |
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•Higher packing for EPD coating of (Mn,Co)3O4 from isopropanol compared to ethanol.•Higher density of (Mn,Co)3O4 at dual-atmosphere sintering compared to air-sintering.•A dense EPD coating on Cr-forming steel prevented poisoning and degradation of SOFC.
Chromium (Cr) species vaporizing from chromia-forming alloy interconnects is known as a source of degradation in solid oxide fuel cell (SOFC) stacks called “cathode poisoning”. (Mn,Co)3O4 spinel coatings offer good protection against Cr evaporation during operation. In this study, Crofer 22 APU steel interconnects were electrophoretically deposited in different mediums to obtain high packing of green coating layer. The optimized sample was then sintered in air-atmosphere or dual-atmospheres (reducing-oxidizing). Anode-supported cells were exposed from cathode side to bare or coated interconnects for 100 h at 800 °C. The electrochemical performances of aged cells were compared at 800 °C. Due to higher density coating obtained by dual-atmospheres sintering process, the exposed cell showed performance similar to non-poisoned cell (0.95–0.98 W/cm2). The cell exposed to air-atmosphere sintered coating interconnect showed lower output power (0.75 W/cm2) due to coating lower density. The cell exposed to uncoated interconnect exhibited considerable degradation and the lowest power (0.66 W/cm2).</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2019.126898</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Atmospheres ; Cathodes ; Cathodic protection ; Chromium oxides ; Coating effects ; Colloidal processing ; Degradation ; Density ; Electroceramics ; Electrophoretic deposition ; Exposure ; Interconnect ; Interconnections ; Materials science ; Oxidation ; Protective coatings ; Sintering ; SOFC ; Solid oxide fuel cells ; Vaporization</subject><ispartof>Materials letters, 2020-01, Vol.259, p.126898, Article 126898</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Jan 15, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-7ab06f0cf7f83680b4afbd16e85de2b1c263f43f7a87581571f5f1e838e55c2e3</citedby><cites>FETCH-LOGICAL-c334t-7ab06f0cf7f83680b4afbd16e85de2b1c263f43f7a87581571f5f1e838e55c2e3</cites><orcidid>0000-0002-8335-7632</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matlet.2019.126898$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Abdoli, Hamid</creatorcontrib><creatorcontrib>Molin, Sebastian</creatorcontrib><creatorcontrib>Farnoush, Hamidreza</creatorcontrib><title>Effect of interconnect coating procedure on solid oxide fuel cell performance</title><title>Materials letters</title><description>[Display omitted]
•Higher packing for EPD coating of (Mn,Co)3O4 from isopropanol compared to ethanol.•Higher density of (Mn,Co)3O4 at dual-atmosphere sintering compared to air-sintering.•A dense EPD coating on Cr-forming steel prevented poisoning and degradation of SOFC.
Chromium (Cr) species vaporizing from chromia-forming alloy interconnects is known as a source of degradation in solid oxide fuel cell (SOFC) stacks called “cathode poisoning”. (Mn,Co)3O4 spinel coatings offer good protection against Cr evaporation during operation. In this study, Crofer 22 APU steel interconnects were electrophoretically deposited in different mediums to obtain high packing of green coating layer. The optimized sample was then sintered in air-atmosphere or dual-atmospheres (reducing-oxidizing). Anode-supported cells were exposed from cathode side to bare or coated interconnects for 100 h at 800 °C. The electrochemical performances of aged cells were compared at 800 °C. Due to higher density coating obtained by dual-atmospheres sintering process, the exposed cell showed performance similar to non-poisoned cell (0.95–0.98 W/cm2). The cell exposed to air-atmosphere sintered coating interconnect showed lower output power (0.75 W/cm2) due to coating lower density. The cell exposed to uncoated interconnect exhibited considerable degradation and the lowest power (0.66 W/cm2).</description><subject>Atmospheres</subject><subject>Cathodes</subject><subject>Cathodic protection</subject><subject>Chromium oxides</subject><subject>Coating effects</subject><subject>Colloidal processing</subject><subject>Degradation</subject><subject>Density</subject><subject>Electroceramics</subject><subject>Electrophoretic deposition</subject><subject>Exposure</subject><subject>Interconnect</subject><subject>Interconnections</subject><subject>Materials science</subject><subject>Oxidation</subject><subject>Protective coatings</subject><subject>Sintering</subject><subject>SOFC</subject><subject>Solid oxide fuel cells</subject><subject>Vaporization</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLxDAUhYMoOD7-gYuA69Y82ibdCDKMDxhxo-AupOmNpHSaMUlF_70Z6trV5cI5597zIXRFSUkJbW6GcqfTCKlkhLYlZY1s5RFaUSl4UbWiPUarLBNFLcT7KTqLcSCEVC2pVuh5Yy2YhL3FbkoQjJ-mw268Tm76wPvgDfRzAOwnHP3oeuy_XQ_YzjBiA-OI9xCsDzs9GbhAJ1aPES7_5jl6u9-8rh-L7cvD0_puWxjOq1QI3ZHGEmOFlbyRpKu07XragKx7YB01rOG24lZoKWpJa0FtbSlILqGuDQN-jq6X3Pze5wwxqcHPYconFeNMyJa1nGZVtahM8DEGsGof3E6HH0WJOoBTg1rAqQM4tYDLttvFBrnBl4OgonGQ2_UuZDSq9-7_gF9ag3k2</recordid><startdate>20200115</startdate><enddate>20200115</enddate><creator>Abdoli, Hamid</creator><creator>Molin, Sebastian</creator><creator>Farnoush, Hamidreza</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0002-8335-7632</orcidid></search><sort><creationdate>20200115</creationdate><title>Effect of interconnect coating procedure on solid oxide fuel cell performance</title><author>Abdoli, Hamid ; Molin, Sebastian ; Farnoush, Hamidreza</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-7ab06f0cf7f83680b4afbd16e85de2b1c263f43f7a87581571f5f1e838e55c2e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Atmospheres</topic><topic>Cathodes</topic><topic>Cathodic protection</topic><topic>Chromium oxides</topic><topic>Coating effects</topic><topic>Colloidal processing</topic><topic>Degradation</topic><topic>Density</topic><topic>Electroceramics</topic><topic>Electrophoretic deposition</topic><topic>Exposure</topic><topic>Interconnect</topic><topic>Interconnections</topic><topic>Materials science</topic><topic>Oxidation</topic><topic>Protective coatings</topic><topic>Sintering</topic><topic>SOFC</topic><topic>Solid oxide fuel cells</topic><topic>Vaporization</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Abdoli, Hamid</creatorcontrib><creatorcontrib>Molin, Sebastian</creatorcontrib><creatorcontrib>Farnoush, Hamidreza</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abdoli, Hamid</au><au>Molin, Sebastian</au><au>Farnoush, Hamidreza</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of interconnect coating procedure on solid oxide fuel cell performance</atitle><jtitle>Materials letters</jtitle><date>2020-01-15</date><risdate>2020</risdate><volume>259</volume><spage>126898</spage><pages>126898-</pages><artnum>126898</artnum><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>[Display omitted]
•Higher packing for EPD coating of (Mn,Co)3O4 from isopropanol compared to ethanol.•Higher density of (Mn,Co)3O4 at dual-atmosphere sintering compared to air-sintering.•A dense EPD coating on Cr-forming steel prevented poisoning and degradation of SOFC.
Chromium (Cr) species vaporizing from chromia-forming alloy interconnects is known as a source of degradation in solid oxide fuel cell (SOFC) stacks called “cathode poisoning”. (Mn,Co)3O4 spinel coatings offer good protection against Cr evaporation during operation. In this study, Crofer 22 APU steel interconnects were electrophoretically deposited in different mediums to obtain high packing of green coating layer. The optimized sample was then sintered in air-atmosphere or dual-atmospheres (reducing-oxidizing). Anode-supported cells were exposed from cathode side to bare or coated interconnects for 100 h at 800 °C. The electrochemical performances of aged cells were compared at 800 °C. Due to higher density coating obtained by dual-atmospheres sintering process, the exposed cell showed performance similar to non-poisoned cell (0.95–0.98 W/cm2). The cell exposed to air-atmosphere sintered coating interconnect showed lower output power (0.75 W/cm2) due to coating lower density. The cell exposed to uncoated interconnect exhibited considerable degradation and the lowest power (0.66 W/cm2).</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2019.126898</doi><orcidid>https://orcid.org/0000-0002-8335-7632</orcidid></addata></record> |
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| subjects | Atmospheres Cathodes Cathodic protection Chromium oxides Coating effects Colloidal processing Degradation Density Electroceramics Electrophoretic deposition Exposure Interconnect Interconnections Materials science Oxidation Protective coatings Sintering SOFC Solid oxide fuel cells Vaporization |
| title | Effect of interconnect coating procedure on solid oxide fuel cell performance |
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