DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Kang Taek | ko |
dc.contributor.author | Yoon, Hee Sung | ko |
dc.contributor.author | Ahn, Jin Soo | ko |
dc.contributor.author | Wachsman, Eric D. | ko |
dc.date.accessioned | 2020-03-19T04:20:04Z | - |
dc.date.available | 2020-03-19T04:20:04Z | - |
dc.date.created | 2020-03-02 | - |
dc.date.created | 2020-03-02 | - |
dc.date.issued | 2012-07 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY, v.22, no.33, pp.17113 - 17120 | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.uri | http://hdl.handle.net/10203/272972 | - |
dc.description.abstract | Here we demonstrated a simple low-cost approach to dramatically increase the power density of solid oxide fuel cells (SOFCs) using an improved anode functional layer (AFL) structure. By infiltrating a very small amount (similar to 2 wt%) of Ni and Gd0.1Ce0.9O1.95(GDC) precursor solution into a submicron-sized, colloidally deposited AFL, a high power density cost-effective bimodally integrated AFL (BI-AFL) was produced. Microstructural analysis of this BI-AFL revealed that the superimposed ultra-fine features surrounding a submicron Ni-GDC particulate structure remained even after high temperature sintering. Applying this BI-AFL on an anode-supported SOFC yielded a maximum power density (MPD) of similar to 1.2 W cm(-2) at 600 degrees C, a similar to 3x increase compared to SOFC without an AFL. Electrochemical impedance results showed a striking decrease in both ohmic and non-ohmic electrode area specific resistances (ASR) compared to SOFCs with either no AFL or a conventional AFL. The effect of the BI-AFL structure on improving SOFC performance was even greater at lower temperature. These results indicate that a network structure with bimodal particle size distribution in the AFL dramatically increased triple phase boundary (TPB) length and enhanced the interfacial contact between anode and electrolyte. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Bimodally integrated anode functional layer for lower temperature solid oxide fuel cells | - |
dc.type | Article | - |
dc.identifier.wosid | 000306972900059 | - |
dc.identifier.scopusid | 2-s2.0-84865506717 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 33 | - |
dc.citation.beginningpage | 17113 | - |
dc.citation.endingpage | 17120 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.identifier.doi | 10.1039/c2jm34465c | - |
dc.contributor.localauthor | Lee, Kang Taek | - |
dc.contributor.nonIdAuthor | Yoon, Hee Sung | - |
dc.contributor.nonIdAuthor | Ahn, Jin Soo | - |
dc.contributor.nonIdAuthor | Wachsman, Eric D. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | SOFC | - |
dc.subject.keywordPlus | ELECTROLYTE | - |
dc.subject.keywordPlus | CATHODES | - |
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