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Strategies for Reducing the PGM Loading in High Power AEMFC Anodes

Omasta, Travis J., Zhang, Yufeng, Park, Andrew M., Peng, Xiong, Pivovar, Bryan, Varcoe, John R. and Mustain, William E. (2018) Strategies for Reducing the PGM Loading in High Power AEMFC Anodes Journal of The Electrochemical Society, 165 (9). F710-F717.

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Abstract

Anion Exchange Membrane Fuel Cells (AEMFCs) have experienced a significant rise in attention in recent years, largely motivated by the potential to overcome the costs that have plateaued for proton exchange membrane fuel cells. However, despite significant advances in power generation, membrane conductivity, membrane stability, and catalyst activity, the vast majority of high performing AEMFCs are fabricated with a high PGM loading (0.4–0.8 mg cm−2). This work demonstrates an electrode fabrication method that reduces the anode catalyst loading by 85% while still achieving performance ca. 1 W cm−2 – accomplished by designing a multi-layered electrode comprised of an optimized ionomer:carbon:PGM ratio catalyst layer coupled with a hydrophobic microporous layer. If paired with a high-performing PGM-free cathode, this new anode shows the potential to meet existing DOE PGM loading and performance targets.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
NameEmailORCID
Omasta, Travis J.
Zhang, Yufeng
Park, Andrew M.
Peng, Xiong
Pivovar, Bryan
Varcoe, John R.J.Varcoe@surrey.ac.uk
Mustain, William E.
Date : 21 June 2018
Funders : Engineering and Physical Sciences Research Council (EPSRC)
DOI : 10.1149/2.1401809jes
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, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. [DOI: 10.1149/2.1401809jes]
Uncontrolled Keywords : Anion Exchange Membrane Fuel Cell; Electrode Engineering; Low PGM
Depositing User : Clive Harris
Date Deposited : 28 Aug 2018 13:20
Last Modified : 11 Dec 2018 11:24
URI: http://epubs.surrey.ac.uk/id/eprint/849128

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