Simulation and Mathematical Modeling of Unsupported Pt Nanoparticles for Fuel Cell Electrocatalysis

Polymer Electrolyte Fuel Cells (PEFC) are under intense research as highly efficient and clean power sources for transportation and portable applications. The Cathode Catalyst Layer (CCL) of PEFC, usually formed by carbon supported Pt-based catalyst, is considered as the most critical component. It involves all processes relevant to fuel cell operation. Cost and abundance of Pt is the major challenge for the commercialization of PEFC technology. Recent results in experiment and modeling indicate that catalyst activity and utilization could be improved by substantial factors.

Ab-initio Simulation on Morphology and Reactivity of Supported Platinum Nanoparticles

Polymer Electrolyte Fuel Cells (PEFC) are under intense research as highly efficient and clean power sources for transportation and portable applications. The Cathode Catalyst Layer of PEFC, usually formed by carbon supported Pt-based catalyst, is considered as the most critical component. It involves all processes relevant for fuel cell operation. Cost and abundance of Pt is the major challenge for the commercialization of PEFC technology. Recent results in experiment and modeling indicate that catalyst activity and utilization could be improved by substantial factors.

Mathematical Modeling of Porous Structure and Operation of Cathode Catalyst Layers in PEM Fuel Cells

Highly efficient and environmentally clean energy conversion in Polymer Electrolyte Membrane (PEM) Fuel Cells is driven by electrochemical reactions that convert hydrogen and oxygen molecules into water. Water, the product of the overall reaction, is involved in all essential processes in the cell. Water management is, thus, a critical issue for fuel cell operation. It entails controlling water fluxes and maintaining appropriate levels of liquid water saturation in the different cell components.