Water Electrolysis: Hierarchically Structured Porous Transport Layers for Polymer Electrolyte Water Electrolysis (Adv. Energy Mater. 2/2020)

In article number 1903216, Felix N. Büchi and co-workers report on the development of multilayer porous transport structures for polymer electrolyte water electrolysis cells. The new titanium sintered materials combine preferential low surface roughness with high open porosity and low tortuosity. The materials enhance catalyst layer utilization and cell performance and can be combined with very thin membrane electrolytes.