Nanoporous gold anode catalyst for direct borohydride fuel cell

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dc.contributor.author Nagle, Lorraine C.
dc.contributor.author Rohan, James F.
dc.date.accessioned 2013-04-22T10:15:14Z
dc.date.available 2013-04-22T10:15:14Z
dc.date.issued 2011-08
dc.identifier.citation Nagle, Lorraine C.,Rohan, James F. (2011) 'Nanoporous gold anode catalyst for direct borohydride fuel cell'. International Journal of Hydrogen Energy, 36 (1616):10319-10326. en
dc.identifier.volume 36 en
dc.identifier.issued 16 en
dc.identifier.startpage 10319 en
dc.identifier.endpage 10326 en
dc.identifier.issn 0360-3199
dc.identifier.uri http://hdl.handle.net/10468/1072
dc.identifier.doi 10.1016/j.ijhydene.2010.09.077
dc.description.abstract Nanoporous gold (NPG) electrodes were fabricated in film and wire array formats by selectively dealloying Ag from Au0.18Ag0.82. Borohydride oxidation reaction (BOR) 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 that than observed at an Au disc and higher currents were realized. An onset potential of −1.07 V vs SCE which is 0.207 V lower than that at an Au disc was recorded. The oxidation current for 20 mM borohydride in 1 M NaOH increased to 73.6 mA cm−2 from 3.17 mA cm-2 at an Au disc. An n value of 7.49 was determined for the oxidation peak at high potential (−0.49 V) while a value of 4.26 was determined at low potential for the oxidation plateau centered at −0.05 V. NPG presents an attractive alternative to gold nanoparticle-based catalysts for use in direct borohydride fuel cells. NPG can establish intimate contact with an electrical substrate and eliminates the need for a carbon support. en
dc.description.sponsorship Environmental Protection Agency (STRIVE/2007-FS-ET-6-M5) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.uri http://www.sciencedirect.com/science/article/pii/S0360319910019841
dc.rights NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Hydrogen Energy. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Hydrogen Energy, [Volume 36, Issue 16, August 2011] DOI: http://dx.doi.org/10.1016/j.ijhydene.2010.09.077 en
dc.subject Gold en
dc.subject Borohydride en
dc.subject Nanoporous gold en
dc.subject Direct borohydride fuel cell en
dc.title Nanoporous gold anode catalyst for direct borohydride fuel cell en
dc.type Article (peer-reviewed) en
dc.internal.authorurl http://www.tyndall.ie en
dc.internal.authorcontactother James Rohan, Tyndall Microsystems, University College Cork, Cork, Ireland. +353-21-490-3000 Email: james.rohan@tyndall.ie en
dc.internal.availability Full text available en
dc.date.updated 2013-04-12T08:59:09Z
dc.description.version Accepted Version en
dc.internal.rssid 205924875
dc.contributor.funder Environmental Protection Agency en
dc.description.status Peer reviewed en
dc.identifier.journaltitle International Journal of Hydrogen Energy en
dc.internal.copyrightchecked Yes. CORA - ROMEO en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress james.rohan@tyndall.ie en


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