High rates of oxygen reduction over a vapor phase-polymerized PEDOT electrode

Winther-Jensen, Bjorn, Winther-Jensen, Orawan, Forsyth, Maria and MacFarlane, Douglas R. 2008, High rates of oxygen reduction over a vapor phase-polymerized PEDOT electrode, Science, vol. 321, no. 5889, pp. 671-674.

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Title High rates of oxygen reduction over a vapor phase-polymerized PEDOT electrode
Author(s) Winther-Jensen, Bjorn
Winther-Jensen, Orawan
Forsyth, Maria
MacFarlane, Douglas R.
Journal name Science
Volume number 321
Issue number 5889
Start page 671
End page 674
Total pages 4
Publisher American Association for the Advancement of Science
Place of publication Washington, DC
Publication date 2008-08-01
ISSN 0036-8075
1095-9203
Summary The air electrode, which reduces oxygen (O2), is a critical component in energy generation and storage applications such as fuel cells and metal/air batteries. The highest current densities are achieved with platinum (Pt), but in addition to its cost and scarcity, Pt particles in composite electrodes tend to be inactivated by contact with carbon monoxide (CO) or by agglomeration. We describe an air electrode based on a porous material coated with poly(3,4-ethylenedioxythiophene) (PEDOT), which acts as an O2 reduction catalyst. Continuous operation for 1500 hours was demonstrated without material degradation or deterioration in performance. O2 conversion rates were comparable with those of Pt-catalyzed electrodes of the same geometry, and the electrode was not sensitive to CO. Operation was demonstrated as an air electrode and as a dissolved O2 electrode in aqueous solution.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2008, American Association for the Advancement of Science
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030294

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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