DOI: 10.1126/science.1159267. High Rates of Oxygen Reduction over a Vapor Phase

High Rates of Oxygen Reduction over a Vapor Phase–Polymerized PEDOT Electrode

10.1126/science.1159267

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

The air electrode, which reduces oxygen (O 2 ), 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 O 2 reduction catalyst. Continuous operation for 1500 hours was demonstrated without material degradation or deterioration in performance. O 2 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 O 2 electrode in aqueous solution.

Bibliography

Winther-Jensen, B., Winther-Jensen, O., Forsyth, M., & MacFarlane, D. R. (2008). High Rates of Oxygen Reduction over a Vapor PhaseâPolymerized PEDOT Electrode. Science, 321(5889), 671â674.

Authors 4

Bjorn Winther-Jensen (first)
Orawan Winther-Jensen (additional)
Maria Forsyth (additional)
Douglas R. MacFarlane (additional)

References 32 Referenced 488

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Funding of this work by the Australian Research Council (ARC) Centre of Excellence in Electromaterials Science is gratefully acknowledged as is ARC Fellowship support for B.W.-J. (Australian Postdoctoral Fellowship) and D.R.M. (Federation Fellowship).

Dates

Type	When
Created	17 years ago (July 31, 2008, 5:08 p.m.)
Deposited	1 year, 7 months ago (Jan. 10, 2024, 4:07 a.m.)
Indexed	16 minutes ago (Aug. 26, 2025, 10:30 a.m.)
Issued	17 years ago (Aug. 1, 2008)
Published	17 years ago (Aug. 1, 2008)
Published Print	17 years ago (Aug. 1, 2008)

Funders 0

None

BibTeX

@article{Winther_Jensen_2008, title={High Rates of Oxygen Reduction over a Vapor Phase–Polymerized PEDOT Electrode}, volume={321}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1159267}, DOI={10.1126/science.1159267}, number={5889}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Winther-Jensen, Bjorn and Winther-Jensen, Orawan and Forsyth, Maria and MacFarlane, Douglas R.}, year={2008}, month=aug, pages={671–674} }

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