Molten Carbonate Fuel Cells (MCFCs) are used today commercially for power production. More recently they have also been considered carbon capture from industrial and generation CO 2 sources. In this newer application context, our recent studies shown that at low /H O cathode gas ratios, water supplements in the electrochemical process to generate but not . We now report direct Raman observation...

This paper presents an overview of the most relevant fuel cell types and identifies promising options for application in propulsion systems commercial electrified aviation. The general design, operating principles main characteristics polymer electrolyte membrane, alkaline, direct methanol, phosphoric acid, molten carbonate solid oxide cells are described. Evaluation criteria derived from aviat...