The performance of proton exchange membrane fuel cells (PEMFCs), including reaction
activity and durability, requires further improvement before large-scale commercialization …

Abstract Nonlinear Electrochemical Impedance Spectroscopy (NLEIS) is a method of
characterizing an electrochemical systems by applying a large amplitude sinusoidal …

Conclusion Electrochemical impedance spectroscopy has become a mature and well-
understood technique. It is now possible to acquire, validate, and quantitatively interpret the …

The nonlinear frequency response analysis (NFRA) can be seen as an extension of
electrochemical impedance spectroscopy (EIS). NFRA gives a full and detailed …

Electrochemical impedance spectroscopy (EIS) is a commonly used technique for studying
internal dynamics of the proton exchange membrane (PEM) fuel cell. However, due to its …

The voltage response of a water electrolyzer at low frequencies is characterized by a
combination of a static polarization curve and dynamic, capacitive effects. In this paper, a …

The development, fabrication and operation of electrochemical energy devices like fuel
cells, batteries or electrolyzers requires powerful diagnostic techniques. Frequency …

A better grasp of the underlying phenomena occurring in electrochemical technologies is
crucial for their further development and, consequently, a much-needed step forward to a …

The nonlinear frequency response behavior of a proton exchange membrane fuel cell
(PEMFC) with different O2 stoichiometry is characterized and analyzed by total harmonic …

Fuel cells can convert the energy that is chemically stored in a compound into electrical
energy with high efficiency. Hydrogen could be the first choice for chemical energy storage …