Low-temperature electrochemical characterization of dense ultra-thin lanthanum strontium cobalt ferrite (La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3)) cathodes synthesized by RF-sputtering on nanoporous alumina-supported Y-doped zirconia membranes
Dense ultra-thin nanocrystalline La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3) (LSCF) films with thickness of [not, vert, similar]50 nm, have been sputtered on nanoporous anodic alumina-supported nanocrystalline thin film yttria-stabilized zirconia and patterned by photolithography into micro...
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| Veröffentlicht in: | Journal of power sources 2009-09, Vol.193 (2), p.589-592 |
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| creator | Xiong, Hui Lai, Bo-Kuai Johnson, Alex C Ramanathan, Shriram |
| description | Dense ultra-thin nanocrystalline La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3) (LSCF) films with thickness of [not, vert, similar]50 nm, have been sputtered on nanoporous anodic alumina-supported nanocrystalline thin film yttria-stabilized zirconia and patterned by photolithography into microelectrodes. This approach enables low-temperature (425-550 [deg]C) electrochemical properties of dense ultra-thin nanocrystalline LSCF to be characterized. The results reveal that the electrochemical resistance of nanocrystalline ultra-thin LSCF is dominated by the oxygen surface exchange reaction at the electrode surface with an activation energy of 1.1 eV. Area-specific resistance of LSCF was obtained and the results are of potential relevance to utilizing nanostructured oxide cathodes for micro-SOFCs operated at low temperatures. |
| doi_str_mv | 10.1016/j.jpowsour.2009.04.024 |
| format | Article |
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This approach enables low-temperature (425-550 [deg]C) electrochemical properties of dense ultra-thin nanocrystalline LSCF to be characterized. The results reveal that the electrochemical resistance of nanocrystalline ultra-thin LSCF is dominated by the oxygen surface exchange reaction at the electrode surface with an activation energy of 1.1 eV. Area-specific resistance of LSCF was obtained and the results are of potential relevance to utilizing nanostructured oxide cathodes for micro-SOFCs operated at low temperatures.</description><identifier>ISSN: 0378-7753</identifier><identifier>DOI: 10.1016/j.jpowsour.2009.04.024</identifier><language>eng</language><subject>Cathodes ; Nanocomposites ; Nanocrystals ; Nanomaterials ; Nanostructure ; Surface chemistry ; Yttria stabilized zirconia ; Zirconium dioxide</subject><ispartof>Journal of power sources, 2009-09, Vol.193 (2), p.589-592</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Xiong, Hui</creatorcontrib><creatorcontrib>Lai, Bo-Kuai</creatorcontrib><creatorcontrib>Johnson, Alex C</creatorcontrib><creatorcontrib>Ramanathan, Shriram</creatorcontrib><title>Low-temperature electrochemical characterization of dense ultra-thin lanthanum strontium cobalt ferrite (La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3)) cathodes synthesized by RF-sputtering on nanoporous alumina-supported Y-doped zirconia membranes</title><title>Journal of power sources</title><description>Dense ultra-thin nanocrystalline La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3) (LSCF) films with thickness of [not, vert, similar]50 nm, have been sputtered on nanoporous anodic alumina-supported nanocrystalline thin film yttria-stabilized zirconia and patterned by photolithography into microelectrodes. This approach enables low-temperature (425-550 [deg]C) electrochemical properties of dense ultra-thin nanocrystalline LSCF to be characterized. The results reveal that the electrochemical resistance of nanocrystalline ultra-thin LSCF is dominated by the oxygen surface exchange reaction at the electrode surface with an activation energy of 1.1 eV. Area-specific resistance of LSCF was obtained and the results are of potential relevance to utilizing nanostructured oxide cathodes for micro-SOFCs operated at low temperatures.</description><subject>Cathodes</subject><subject>Nanocomposites</subject><subject>Nanocrystals</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Surface chemistry</subject><subject>Yttria stabilized zirconia</subject><subject>Zirconium dioxide</subject><issn>0378-7753</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqNj81OwzAQhHMAifLzCmhvNIcEuylNe66oOFRCAi6cqo2zJa4cO3htVfTlwaA8AKf5tNrZncmyWylKKeTi_lAeBndkF305E2JVinkpZvOzbCKqelnU9UN1kV0yH4QQUtZikn1v3bEI1A_kMURPQIZU8E511GuFBlSHHlUgr08YtLPg9tCSZYJogscidNqCQRs6tLEHTl4bdCLlGjQB9uS9DgTTLQLHZirKRf7qR5znazfiMt_QiLP8-Y-qPAeFoXMtMfBXekGsT9RC8wUvm4KHGH5z2Q9IsSxaNzjvIgOa2GuLBcchTUIyvBetG5KetFfOaoSe-sajJb7OzvdomG5GvcruNo9v66di8O4zEoddr1mRSQ0p3d4tVwtZy0qK6v-bP79AiM0</recordid><startdate>20090905</startdate><enddate>20090905</enddate><creator>Xiong, Hui</creator><creator>Lai, Bo-Kuai</creator><creator>Johnson, Alex C</creator><creator>Ramanathan, Shriram</creator><scope>7QF</scope><scope>7QQ</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20090905</creationdate><title>Low-temperature electrochemical characterization of dense ultra-thin lanthanum strontium cobalt ferrite (La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3)) cathodes synthesized by RF-sputtering on nanoporous alumina-supported Y-doped zirconia membranes</title><author>Xiong, Hui ; Lai, Bo-Kuai ; Johnson, Alex C ; Ramanathan, Shriram</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_8961713103</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Cathodes</topic><topic>Nanocomposites</topic><topic>Nanocrystals</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>Surface chemistry</topic><topic>Yttria stabilized zirconia</topic><topic>Zirconium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xiong, Hui</creatorcontrib><creatorcontrib>Lai, Bo-Kuai</creatorcontrib><creatorcontrib>Johnson, Alex C</creatorcontrib><creatorcontrib>Ramanathan, Shriram</creatorcontrib><collection>Aluminium Industry Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials 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>Xiong, Hui</au><au>Lai, Bo-Kuai</au><au>Johnson, Alex C</au><au>Ramanathan, Shriram</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-temperature electrochemical characterization of dense ultra-thin lanthanum strontium cobalt ferrite (La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3)) cathodes synthesized by RF-sputtering on nanoporous alumina-supported Y-doped zirconia membranes</atitle><jtitle>Journal of power sources</jtitle><date>2009-09-05</date><risdate>2009</risdate><volume>193</volume><issue>2</issue><spage>589</spage><epage>592</epage><pages>589-592</pages><issn>0378-7753</issn><abstract>Dense ultra-thin nanocrystalline La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3) (LSCF) films with thickness of [not, vert, similar]50 nm, have been sputtered on nanoporous anodic alumina-supported nanocrystalline thin film yttria-stabilized zirconia and patterned by photolithography into microelectrodes. This approach enables low-temperature (425-550 [deg]C) electrochemical properties of dense ultra-thin nanocrystalline LSCF to be characterized. The results reveal that the electrochemical resistance of nanocrystalline ultra-thin LSCF is dominated by the oxygen surface exchange reaction at the electrode surface with an activation energy of 1.1 eV. Area-specific resistance of LSCF was obtained and the results are of potential relevance to utilizing nanostructured oxide cathodes for micro-SOFCs operated at low temperatures.</abstract><doi>10.1016/j.jpowsour.2009.04.024</doi></addata></record> |
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| ispartof | Journal of power sources, 2009-09, Vol.193 (2), p.589-592 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Cathodes Nanocomposites Nanocrystals Nanomaterials Nanostructure Surface chemistry Yttria stabilized zirconia Zirconium dioxide |
| title | Low-temperature electrochemical characterization of dense ultra-thin lanthanum strontium cobalt ferrite (La sub(0.6)Sr sub(0.4)Co sub(0.8)Fe sub(0.2)O sub(3)) cathodes synthesized by RF-sputtering on nanoporous alumina-supported Y-doped zirconia membranes |
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