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Beyond 1.0 W cm−2 Performance without Platinum: The Beginning of a New Era in Anion Exchange Membrane Fuel Cells

Omasta, Travis J., Peng, Xiong, Miller, Hamish A., Vizza, Francesco, Wang, Lianqin, Varcoe, John R., Dekel, Dario R. and Mustain, William E. (2018) Beyond 1.0 W cm−2 Performance without Platinum: The Beginning of a New Era in Anion Exchange Membrane Fuel Cells Journal of The Electrochemical Society, 165 (15). J3039-J3044.

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This work reports a high power, stable, completely Pt-free anion exchange membrane fuel cell (AEMFC) comprised of highly active catalysts – Pd-CeO2/C at the anode and PdCu/C alloy at the cathode for the hydrogen oxidation and oxygen reduction reactions, respectively. The resulting AEMFC shows outstanding performance, reaching a peak power density of 1 W cm−2, twice the value of the best performance for Pt-free cells reported in the literature to date. The AEMFC also shows a low voltage degradation rate when operated continuously for more than 100 h at a constant 0.5 A cm−2, with a voltage degradation rate of only 2.5 mV h-1, which is excellent when compared to nearly all of the AEMFCs reported in the literature to date. This combination of high performance and high stability in the absence of Pt-based catalysts represents a significant landmark in the progress of the AEMFC technology.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
Omasta, Travis J.
Peng, Xiong
Miller, Hamish A.
Vizza, Francesco
Varcoe, John
Dekel, Dario R.
Mustain, William E.
Date : 5 September 2018
Funders : Engineering and Physical Sciences Research Council (EPSRC)
DOI : 10.1149/2.0071815jes
Copyright Disclaimer : © The Author(s) 2018. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY,, which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
Uncontrolled Keywords : Anion Exchange Membrane Fuel Cells; Electrodes; Pt-free
Depositing User : Clive Harris
Date Deposited : 18 Sep 2018 14:41
Last Modified : 11 Dec 2018 11:24

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