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Electrochemical catalytic behavior for platinum functionalized TiO2 nanotube arrays in PEM fuel cells

Published online by Cambridge University Press:  28 March 2013

Anurag Y Kawde ,
Alexander W O'Toole ,
Xiaoli He ,
Richard Phillips ,
Adam Lemke ,
Thomas Murray ,
Robert Geer  and
Eric Eisenbraun
Anurag Y Kawde
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, NY 12222.
Alexander W O'Toole
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, NY 12222.
Xiaoli He
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, NY 12222.
Richard Phillips
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, NY 12222.
Adam Lemke
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, NY 12222.
Thomas Murray
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, NY 12222.
Robert Geer
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, NY 12222.
Eric Eisenbraun*
Affiliation:
College of Nanoscale Science and Engineering, State University of New York, Albany, NY 12222.
*
*Email: akawde@albany.edu
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Abstract

Conventional carbon electrode supports for platinum used in proton exchange membrane (PEM) fuel cell assemblies have issues related to carbon corrosion at typical cell operating and transient conditions. This corrosion gives rise to the evolution of greenhouse gases such as CO2, eventually degrading the carbon support and causing a loss of the catalyst specific area necessary to achieve the desired electrochemical performance. In this study, preliminary results are presented for Pt-functionalized TiO2 nanotube arrays as cathode catalyst supports for PEM fuel cells. The electrochemically synthesized TiO2 nanotube arrays were functionalized by different weight % of Pt via a solution-based approach using a dilute aqueous salt solution of hexachloroplatanic acid. Electron-beam based characterization techniques were used to study the structural and morphological features of the as-synthesized TiO2 nanotube arrays and functionalized Pt/TiO2 nanotube arrays. The electrochemical performance of the functionalized TiO2 nanotube arrays was studied by using cyclic voltammetry.

Keywords

electrochemical synthesisenergy storagenanostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1497: Symposium K – Hierarchically Structured Materials for Energy Conversion and Storage , 2013 , mrsf12-1497-k06-42
Copyright
Copyright © Materials Research Society 2013

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References

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