Randall_ECS_235_PEMFC Modeling_05292019

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.