The three-dimensional structure and composition of a PEMFC catalyst layer (CL) define this
component as a random heterogeneous material. During the manufacturing process of CLs …

A pore-scale model of a PEMFC cathode catalyst layer was developed using the pore
network approach and used to predict polarization behavior. A volumetric image of a …

Nafion, as a key component in the catalyst layer, plays a crucial role in the mass transport
and electrochemical reactions within the catalyst layer. In this study, a numerical method is …

Oxygen diffusion in the cathode catalyst layer (CCL) is crucial to the high performance of
polymer electrolyte membrane fuel cells (PEMFCs), especially in high current density or …

Catalyst utilization is an important determinant of proton exchange membrane fuel cell
performance, and increasing the catalyst utilization is one of the most critical approaches to …

The effect of ionomer content on the microstructures and multiphase transport properties of
cathode catalyst layer (CCL) for polymer electrolyte membrane fuel cells is investigated via …

A key challenge in the use of simulations to determine transport properties of PEMFC
catalyst layers is the computational reconstruction of the catalyst layer microstructure. In this …

In this study, pore-scale simulations are conducted to study oxygen transport processes
around a carbon particle. Four-constituent microscopic structures of catalyst layer are …

We examine the interplay between cathode catalyst layer (CL) porosity/thickness on mass
transport limitations in single cell fuel cells comprised of Pt/C-based CLs fabricated via …

A gradient cathode catalyst layer (CCL) with promoted mass transfer and Pt utilization could
enhance the output performance of proton exchange membrane fuel cells (PEMFCs). Since …