Nanoporous gold catalyst for direct ammonia borane fuel cells

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dc.contributor.authorNagle, Lorraine C.
dc.contributor.authorRohan, James F.
dc.contributor.funderEnvironmental Protection Agencyen
dc.date.accessioned2013-04-23T13:19:37Z
dc.date.available2013-04-23T13:19:37Z
dc.date.issued2011-01
dc.date.updated2013-04-12T09:01:55Z
dc.description.abstractNanoporous gold (NPG) electrodes were fabricated in film and wire array formats by selectively dealloying Ag from Au0.18Ag0.82. The ammonia borane (AB) oxidation reaction was studied by cyclic voltammetry at the NPG electrodes. The onset potential for the oxidation at NPG in a wire array format shifted to more negative potentials than that observed at a Au disc and higher currents were realised. An onset potential of -1.30 V vs. SCE was recorded which is 0.28 V lower than that at a Au disc. The oxidation current for 20 mM AB in 1 M NaOH increased from 2.65 mA cm(-2) at a Au disc to 13.1 mA cm(-2) at a NPG wire array. NPG is a viable candidate as an anode catalyst for a direct ammonia borane fuel cell.en
dc.description.sponsorshipEnvironmental Protection Agency (STRIVE/2007-FS-ET-6-M5); Higher Education Authority (PRTLI4)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationNAGLE, L. C. & ROHAN, J. F. 2011. Nanoporous Gold Catalyst for Direct Ammonia Borane Fuel Cells. Journal of The Electrochemical Society, 158 (7), B772-B778. doi: 10.1149/1.3583637en
dc.identifier.doi10.1149/1.3583637
dc.identifier.endpageB778en
dc.identifier.issued7en
dc.identifier.journaltitleJournal of the Electrochemical Societyen
dc.identifier.startpageB772en
dc.identifier.urihttps://hdl.handle.net/10468/1079
dc.identifier.volume158en
dc.language.isoenen
dc.publisherThe Electrochemical Societyen
dc.relation.urihttp://jes.ecsdl.org/content/158/7/B772.abstract
dc.rights(C) 2011 The Electrochemical Society. [DOI: 10.1149/1.3583637] All rights reserved.en
dc.subjectHydrogen generation systemsen
dc.subjectCore-shell nanoparticlesen
dc.subjectPt-Ag electrodesen
dc.subjectSodium-borohydrideen
dc.subjectDirect oxidationen
dc.subjectThermal-decompositionen
dc.subjectOxygen reductionen
dc.subjectLow-temperatureen
dc.subjectElectrooxidationen
dc.titleNanoporous gold catalyst for direct ammonia borane fuel cellsen
dc.typeArticle (peer-reviewed)en
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