Using a Quasi-Potential Transformation for Modeling Diffusion Media in Polymer-Electrolyte Fuel Cells

Stochastic Modeling and Direct Simulation of the Diffusion Media for Polymer Electrolyte Fuel Cells

Synthesized Bimetallic Electrocatalyst for Oxygen Reduction Reaction in Polymer Electrolyte Fuel Cells

In the present study, a step by step process was applied to synthesize bimetallic electrocatalyst (Ru and Pt on VulcanXC-72R). This process can reduce the amount of platinum and increase the gas diffusion electrode (GDE) performance in the cathodic reaction of polymer electrolyte membrane fuel cells (PEMFCs). Using the impregnation by hydrothermal synthesis method, a series of electrocatalysts ...

Modeling, Simulation and Characterization of Atomic Force Microscopy Measurements for Ionic Transport and Impedance in PEM Fuel Cells

The polymer electrolyte membrane fuel cell is a power source with the potential for reducing green-house gas emissions. Characterizing the electrolyte of a fuel cell is an important procedure for assessing the performance of the entire device. Atomic force microscopy (AFM) is one of the major instruments for such characterization, since it can be used for determining the surface potential and/o...

Model Library of Polymer Electrolyte Membrane Fuel Cells for System Hardware and Control Design

The trade-offs among dynamic response, efficiency, and robustness to external factors are fundamental to the optimization of hardware and controls for fuel cell systems. No previously published model of polymer electrolyte membrane fuel cells (PEMFCs) has the capability to simultaneously provide dynamic modeling capabilities, a clear representation of physical configurations, adjustable fidelit...

Numerical Simulation of Non-Uniform Gas Diffusion Layer Porosity Effect on Polymer Electrolyte Membrane Fuel Cell Performance

Gas diffusion layers are essential components of proton exchange membrane fuel cell since the reactants should pass through these layers. Mass transport in these layers is highly dependent on porosity. Many of simulations have assumed, for simplicity, the porosity of GDL is constant, but in practice, there is a considerable variation in porosity along gas diffusion layers. In the present study ...