Catalyst layer degradation has become an important issue in the development of proton
exchange membrane (PEM) fuel cells. This paper reviews the most recent research on …

Because the AC impedance technique, also known as electrochemical impedance
spectroscopy (EIS), is being utilized by more and more researchers in proton exchange …

The properties of porous transport layers (PTL) in electrolysis devices and their effects on
cell performance have been studied extensively in recent literature. This paper provides a …

In this paper, electrochemical impedance spectroscopy (EIS) is used to resolve various
sources of polarization loss in a pure hydrogen-fueled polymer electrolyte fuel cell (PEFC) …

Imidazolium-based ionic liquids and ionic liquid monomers are becoming increasingly
popular in a variety of areas including biphasic reaction catalysis, electromechanical …

The electrode in a proton exchange membrane (PEM) fuel cell is composed of a carbon-
supported Pt catalyst coated with a thin layer of ionomer. At the cathode, where the oxygen …

This work addresses issues of long-term durability of hydrogen-air polymer electrolyte fuel
cells (PEFCs). The chromium in a binary alloy catalyst has been found to migrate from …

The principles and trade-offs of four electrical test methods suitable for on-line measurement
of the ohmic resistance (RΩ) of fuel cells is presented: current interrupt, AC resistance, high …

Morphological changes occurring in membrane electrode assemblies (MEAs) were
monitored using transmission electron microscopy (TEM) during the course of life testing of …

Graphene-based nanoporous materials have been extensively explored as high-capacity
ion electrosorption electrodes for supercapacitors. However, little attention has been paid to …