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.; Mustain, William E.

doi:10.1149/2.1401809jes

Title: Strategies for Reducing the PGM Loading in High Power AEMFC Anodes

Journal Article · Thu Jun 21 00:00:00 EDT 2018 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/2.1401809jes· OSTI ID:1458839

; Zhang, Yufeng; Park, Andrew M.; Peng, Xiong; Pivovar, Bryan; Varcoe, John R.;

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). Our 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.

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Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE); Engineering and Physical Sciences Research Council (EPSRC)

Grant/Contract Number:: AC36-08GO28308; SC0010531; EP/M014371/1

OSTI ID:: 1458839

Alternate ID(s):: OSTI ID: 1461858

Report Number(s):: NREL/JA-5900-72002; /jes/165/9/F710.atom

Journal Information:: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Vol. 165 Journal Issue: 9; ISSN 0013-4651

Publisher:: The Electrochemical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 41 works

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Title: Strategies for Reducing the PGM Loading in High Power AEMFC Anodes

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