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    Single Nanoskived Nanowires for Electrochemical Applications

    Access Status
    Fulltext not available
    Authors
    Dawson, K.
    Strutwolf, J.
    Rodgers, K.
    Herzog, G.
    Arrigan, Damien
    Quinn, A.
    O’Riordan, A.
    Date
    2011
    Type
    Journal Article
    
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    Citation
    Dawson, K. and Strutwolf, J. and Rodgers, K. and Herzog, G. and Arrigan, D. and Quinn, A. and O’Riordan, A. 2011. Single Nanoskived Nanowires for Electrochemical Applications. Analytical Chemistry. 83 (14): pp. 5535-5540.
    Source Title
    Analytical Chemistry
    DOI
    10.1021/ac2004086
    ISSN
    0003-2700
    URI
    http://hdl.handle.net/20.500.11937/8891
    Collection
    • Curtin Research Publications
    Abstract

    In this work, we fabricate gold nanowires with well controlled critical dimensions using a recently demonstrated facile approach termed nanoskiving. Nanowires are fabricated with lengths of several hundreds of micrometers and are easily electrically contacted using overlay electrodes. Following fabrication, nanowire device performance is assessed using both electrical and electrochemicalcharacterization techniques. We observe low electrical resistances with typical linear Ohmic responses from fully packaged nanowire devices. Steady-state cyclic voltammograms in ferrocenemonocarboxylicacid demonstrate scan rate independence up to 1000 mV s1. Electrochemical responses are excellently described by classical ButlerVolmer kinetics, displaying a fast, heterogeneous electron transfer kinetics, k0 = 2.27 ( 0.02 cm s1, R = 0.4 (0.01. Direct reduction of hydrogen peroxide is observed at nanowires across the 110 pMto 1 mM concentration range, without the need for chemical modification, demonstrating the potential of these devices for electrochemical applications.

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