There are several compelling technological and commercial reasons for operating H2/air
PEM fuel cells at temperatures above 100° C. Rates of electrochemical kinetics are …

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

Fuel cells will make a valuable contribution to future power generation facilities. They
improve the flexibility and increase the options for many applications, such as distributed …

The problem of greenhouse gas (particularly carbon dioxide) release during power
generation in fixed and mobile systems is widely acknowledged. Fuel cells are …

In this study, Distribution of Relaxation Times (DRT) was successfully demonstrated in the
analysis of the impedance spectra of High-Temperature Polymer Electrolyte Membrane Fuel …

Fuel cells may become the energy-delivery devices of the 21st century. Although there are
many types of fuel cells, polymer-electrolyte fuel cells are receiving the most attention for …

In this article we analyzed and designed air flow controllers that protect the fuel cell (FC)
stack from oxygen starvation during step changes of current demand. The steady-state …

The aim of this book is to present a systematic theory of transport for heterogeneous
systems. The theory is an extension of non-equilibrium thermodynamics for transport in …

The present paper deals with monitoring of flooding and drying out of a proton exchange
membrane (PEM) fuel cell using a model-based approach coupled with ac impedance …

To meet the power density, reliability, and cost requirements that will enable a widespread
use of fuel cells, many research activities focus on an understanding of the thermodynamics …