Unveiling Local Aging Patterns Following Accelerated Stress Testing of High‐Performance Polymer Electrolyte Fuel Cells

P Sharma, L Cheng, D Aaron, S Mehrazi, J Braaten… - Small, 2024 - Wiley Online Library
This study presents an in‐depth analysis of heterogeneous aging patterns in membrane
electrode assemblies (MEAs) subjected to diverse accelerated stress test (AST) conditions …

Correlating Catalyst Growth with Liquid Water Distribution in Polymer Electrolyte Fuel Cells

P Sharma, D Aaron, P Boillat, L Cheng, C Johnston… - Small, 2024 - Wiley Online Library
This study investigates the impact of liquid water distribution in a polymer electrolyte fuel cell
(PEFC) on the spatially heterogeneous platinum (Pt) catalyst degradation. The membrane …

Water in Polymer Electrolyte Fuel Cells (PEFCs): Friend or Foe? Linking Preferential Catalyst Growth with Liquid Water Distribution in PEFCs

P Sharma, P Boillat, L Cheng, DS Aaron… - Electrochemical …, 2024 - iopscience.iop.org
With a recent emphasis on heavy-duty vehicle applications over light-duty, the performance
targets for polymer electrolyte fuel cells (PEFCs) have become more demanding. For …

Investigating the Effects of Cascading Accelerated Stress Tests (ASTs) on the Localized Electrochemical Performance Degradation in Polymer Electrolyte Fuel Cells …

P Sharma, L Cheng, S Mehrazi, D Aaron… - Electrochemical …, 2023 - iopscience.iop.org
With a recent shift in focus from light-duty to heavy-duty vehicle applications, the durability
and performance targets for polymer electrolyte fuel cells (PEFCs) have become even more …