Water management is a highly critical parameter for improving the performance of polymer electrolyte fuel cells (PEFCs) at high current densities. The microstructure and properties gas diffusion layer (GDL) play an important role in distribution reactant gases drainage liquid water produced catalyst during PEFC operation. In this context, community still debates on optimum values GDL’s thermal ...

Sol-gel modification of mesoporous alumina membranes is a very successful technique to improve gas separation performance. Due to the formed microporous top layer, the membranes show activated transport and molecular sieve-like separation factors. This paper concentrates on the mechanism of activated transport (also often referred to as micropore diffusion or molecular sieving). Based on a theo...

In the present scenario of a global initiative toward securing net-zero by mid-century and keeping 1.5 degrees within reach, polymer-electrolyte fuel cells (PEFCs) are considered to play an important role in energy transition, particularly for decarbonization transit buses, trucks, rail transport, ships ferries, residential heating sector. However, PEFCs not economically competitive with intern...