Proton exchange membrane (PEM) fuel cells are a promising candidate as the next-
generation power sources for portable, transportation, and stationary applications. Gas …

Over the last century, X-ray imaging instruments and their accompanying tomographic
reconstruction algorithms have developed considerably. With improved tomogram quality …

A four-dimensional visualization approach, featuring three dimensions in space and one
dimension in time, is proposed to study local electrode degradation effects during voltage …

Mechanical degradation occurs in fuel cell membranes due to the dynamic environmental
conditions of operational duty cycles, and is regarded as a critical determinant of fuel cell …

Lifetime-limiting failure of fuel cell membranes is generally attributed to their chemical and/or
mechanical degradation. Although both of these degradation modes occur concurrently …

Composite ionomer membranes with ePTFE reinforcement have been developed to improve
operational durability of polymer electrolyte fuel cells by creating a more mechanically …

This work is a two-part article series on chemo-mechanical membrane degradation in fuel
cells, wherein the present work in Part 1 investigates edge failure and Part 2 investigates …

Understanding of degradation mechanisms present in polymer electrolyte fuel cells (PEFCs)
is important to continue the integration of this clean energy technology into everyday life …

Durability issues in fuel cells, due to chemical and mechanical degradation, are potential
impediments in their commercialization. Hydrogen leak development across degraded fuel …

Hygrothermal variations that arise during dynamic fuel cell operation are known to generate
mechanical stresses in the ionomer membrane. Previous research has indicated that …