Intermediate Temperature PEFC's with Nafion 211 Membrane Electrolytes: An Experimental and Numerical Study.

This paper evaluates the performance of Nafion 211 at elevated temperatures up to 120 °C using an experimentally validated model. Increasing the fuel cell operating temperature could have many key benefits at the cell and system levels. However, current research excludes this due to issues with membrane durability.

Patterned Membranes for Proton Exchange Membrane Fuel Cells Working at Low Humidity.

High performing proton exchange membrane fuel cells (PEMFCs) that can operate at low relative humidity is a continuing technical challenge for PEMFC developers. In this work, micro-patterned membranes are demonstrated at the cathode side by solution casting techniques using stainless steel moulds with laser-imposed periodic surface structures (LIPSS). Three types of patterns, lotus, lines, and sharklet, are investigated for their influence on the PEMFC power performance at varying humidity conditions.

Formulation of spinel based inkjet inks for protective layer coatings in SOFC interconnects.

In this study, inkjet printing technology was adopted for the application of protective layer coatings on metallic Solid Oxide Fuel Cell (SOFC) interconnects. The study highlights the potential of the inkjet printing process to fabricate aqueous-based protective layer coatings over ferritic stainless steels, a novel, very flexible, and low-cost approach to coating. The work presented focusses on the formulation of aqueous-based spinel particulate inks for the inkjet printing process using an electro-magnetic inkjet printer.

Composite Polymers Development and Application for Polymer Electrolyte Membrane Technologies-A Review.

Nafion membranes are still the dominating material used in the polymer electrolyte membrane (PEM) technologies. They are widely used in several applications thanks to their excellent properties: high proton conductivity and high chemical stability in both oxidation and reduction environment. However, they have several technical challenges: reactants permeability, which results in reduced performance, dependence on water content to perform preventing the operation at higher temperatures or low humidity levels, and chemical degradation.