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Randall_ECS_235_PEMFC Modeling_05292019

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Version 2 2019-06-03, 22:07
Version 1 2019-05-29, 13:48
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posted on 2019-06-03, 22:07 authored by Steven DeCaluweSteven DeCaluwe, Corey RandallCorey Randall
Use of pseudo-2d simulations to understand microstructure-performance relationships in PEMFC cathode catalyst layers.

Prepared and presented by Corey Randall at 235th Electrochemical Society Meeting, Dallas, TX, May 29, 2019.

By estimating Nafion structure-property relationships from previously published data, we are able to capture changes to the limiting current with varying Pt loading. However, there remains a kinetic limitation, which scales linearly with Pt loading, which the model does not currently capture.

Results also predict non-monotonic variation of PEMFC performance with variations in the Nafion catalyst coating thickness within the catalyst layer.

Funding

US Department of Energy, Basic Energy Sciences Early Career Award

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