| dc.contributor.author | La O', Gerardo Jose Cordova | |
| dc.contributor.author | Shao-Horn, Yang | |
| dc.date.accessioned | 2013-06-13T19:51:24Z | |
| dc.date.available | 2013-06-13T19:51:24Z | |
| dc.date.issued | 2009-03 | |
| dc.date.submitted | 2009-02 | |
| dc.identifier.issn | 1099-0062 | |
| dc.identifier.uri | http://hdl.handle.net/1721.1/79101 | |
| dc.description.abstract | Oxygen reduction reaction (ORR) kinetics was investigated on dense La₀.₈Sr₀.₂MnO₃ microelectrodes as a function of temperature and microelectrode thickness using electrochemical impedance spectroscopy. The surface oxygen exchange and mixed bulk/three-phase-boundary (TPB) charge transfer process were found to control ORR kinetics at high and low temperatures, respectively. The transition temperature from the mixed bulk/TPB charge transfer control to surface oxygen exchange was found to be highly dependent on the microelectrode thickness (~600degrees C for 65 nm vs ~800degreesC for 705 nm). These findings can be used to guide the design of electrodes that can operate at intermediate temperatures. | en_US |
| dc.description.sponsorship | National Science Foundation (U.S.) (Materials Research Science and Engineering Center (MRSEC) Program, Award DMR-0819762) | en_US |
| dc.description.sponsorship | National Science Foundation (U.S.) (NSF grant no. CBET-0844526) | en_US |
| dc.language.iso | en_US | |
| dc.publisher | Electrochemical Society | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1149/1.3095681 | en_US |
| dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
| dc.source | MIT web domain | en_US |
| dc.title | Thickness Dependence of Oxygen Reduction Reaction Kinetics on Strontium-Substituted Lanthanum Manganese Perovskite Thin-Film Microelectrodes | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | la O’, G. J., and Y. Shao-Horn. Thickness Dependence of Oxygen Reduction Reaction Kinetics on Strontium-Substituted Lanthanum Manganese Perovskite Thin-Film Microelectrodes. Electrochemical and Solid-State Letters 12, no. 5 (2009): B82. © 2009 by ECS -- The Electrochemical Society. | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Mechanical Engineering | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Electrochemical Energy Laboratory | en_US |
| dc.contributor.mitauthor | La O', Gerardo Jose Cordova | en_US |
| dc.contributor.mitauthor | Shao-Horn, Yang | en_US |
| dc.relation.journal | Electrochemical and Solid-State Letters | en_US |
| dc.eprint.version | Final published version | en_US |
| dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
| eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
| dspace.orderedauthors | la O’, G. J.; Shao-Horn, Y. | |
| mit.license | PUBLISHER_POLICY | en_US |
| mit.metadata.status | Complete | |
