Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting Nanofabrication

Standard oxidation-reduction reactions such as those of ferrocyanide and ferrocene have long been employed in evaluating and comparing new electrode structures with more traditional configurations. A variety of nanostructured carbon electrodes developed in recent years have been reported to exhibit...

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Main Authors: Eric Broaddus, Joel Brubaker, Scott A. Gold
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:International Journal of Electrochemistry
Online Access:http://dx.doi.org/10.1155/2013/960513
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spelling doaj-8b6d99bdf2954ed19c0edfa239aa2d612020-11-24T22:20:10ZengHindawi LimitedInternational Journal of Electrochemistry2090-35292090-35372013-01-01201310.1155/2013/960513960513Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting NanofabricationEric Broaddus0Joel Brubaker1Scott A. Gold2Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71272, USAChemical and Materials Engineering Department, University of Dayton, Dayton, OH 45469, USAChemical and Materials Engineering Department, University of Dayton, Dayton, OH 45469, USAStandard oxidation-reduction reactions such as those of ferrocyanide and ferrocene have long been employed in evaluating and comparing new electrode structures with more traditional configurations. A variety of nanostructured carbon electrodes developed in recent years have been reported to exhibit faster electron transfer kinetics than more traditional carbon structures when studied with these redox reactions. This type of comparison has not been widely explored for nanostructured platinum electrodes that have become increasingly common. In this work, a platinum nanotubule array electrode was fabricated via a simple template-based process and evaluated using the standard ferrocyanide redox reaction. The nanotubule array electrodes were observed to more closely approach ideal reversible behavior than a typical Pt black/Nafion fuel cell electrode or a standard polished Pt disc electrode. The apparent heterogeneous electron transfer coefficient was determined using the Nicholson method and found to be one to two orders of magnitude greater for the nanotubule array electrodes, depending on the diameter of the nanotubules, in comparison with these same two more traditional electrode structures.http://dx.doi.org/10.1155/2013/960513
collection DOAJ
language English
format Article
sources DOAJ
author Eric Broaddus
Joel Brubaker
Scott A. Gold
spellingShingle Eric Broaddus
Joel Brubaker
Scott A. Gold
Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting Nanofabrication
International Journal of Electrochemistry
author_facet Eric Broaddus
Joel Brubaker
Scott A. Gold
author_sort Eric Broaddus
title Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting Nanofabrication
title_short Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting Nanofabrication
title_full Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting Nanofabrication
title_fullStr Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting Nanofabrication
title_full_unstemmed Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting Nanofabrication
title_sort electrochemical characterization of platinum nanotubules made via template wetting nanofabrication
publisher Hindawi Limited
series International Journal of Electrochemistry
issn 2090-3529
2090-3537
publishDate 2013-01-01
description Standard oxidation-reduction reactions such as those of ferrocyanide and ferrocene have long been employed in evaluating and comparing new electrode structures with more traditional configurations. A variety of nanostructured carbon electrodes developed in recent years have been reported to exhibit faster electron transfer kinetics than more traditional carbon structures when studied with these redox reactions. This type of comparison has not been widely explored for nanostructured platinum electrodes that have become increasingly common. In this work, a platinum nanotubule array electrode was fabricated via a simple template-based process and evaluated using the standard ferrocyanide redox reaction. The nanotubule array electrodes were observed to more closely approach ideal reversible behavior than a typical Pt black/Nafion fuel cell electrode or a standard polished Pt disc electrode. The apparent heterogeneous electron transfer coefficient was determined using the Nicholson method and found to be one to two orders of magnitude greater for the nanotubule array electrodes, depending on the diameter of the nanotubules, in comparison with these same two more traditional electrode structures.
url http://dx.doi.org/10.1155/2013/960513
work_keys_str_mv AT ericbroaddus electrochemicalcharacterizationofplatinumnanotubulesmadeviatemplatewettingnanofabrication
AT joelbrubaker electrochemicalcharacterizationofplatinumnanotubulesmadeviatemplatewettingnanofabrication
AT scottagold electrochemicalcharacterizationofplatinumnanotubulesmadeviatemplatewettingnanofabrication
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