How polymer electrolyte membrane hydrogen fuel cells work
Rise of precious metal-free anion exchange membrane fuel cells

The recent development of AEMFC technology, characterized by operation in a basic environment, enables the use of less expensive materials, and has the potential to lower the economic and environmental cost of a fuel cell system. Such a reduction may help overcome the current economic and environmental obstacles to hydrogen fuel cell vehicles, encouraging their wider development, particularly in the transport sector. However, this technology emerged only a decade ago – mainly thanks to advances in anion exchange membranes – and is at a lower level of maturity than PEMFCs. ...