Aspects of the subject disclosure may include, for example, a porous device, comprising a porous material, and a hierarchical network of flow channels defined in the porous material, wherein at least one flow channel in the hierarchical network of flow channels has a shape that at least partially approximates a cube-root profile or a quartic-root profile. Additional embodiments are disclosed.

A method for producing a functionalized structurized composition for a fuel cell is provided, involving: applying at least one electrode containing catalyst particles to a substrate layer in a coating step, and introducing a depth structure in an electrode surface facing away from the substrate layer in a radiation step by means of using laser interference structurization. A membrane electrode assembly is also provided.

A method of refurbishing a singulated fuel cell stack interconnect includes scanning a first pulsed laser beam on an air side of the interconnect to vaporize seal and corrosion barrier layer residue without vaporizing a metal oxide layer located on the air side of the interconnect below the corrosion barrier layer residue, and scanning a second pulsed laser beam which is different from the first pulsed laser beam on the exposed metal oxide layer on the air side of the interconnect to reflow the metal oxide layer without removing the metal oxide layer.

Various embodiments include a method for producing a gas diffusion electrode, the method comprising: providing a raw electrode layer comprising an electrically non-conducting web; adapting a thickness of the raw electrode layer; and applying a non-solvent to the raw electrode layer.

The present invention refers to new membrane-electrode assembly (MBA), methods of producing the same as well as fuel cell comprising said MBA.

The present disclosure relates to an electrolyte membrane for fuel cells having improved chemical durability and a method of manufacturing the same. Specifically, the method includes preparing a polymer film, depositing catalyst metal on one surface or opposite surfaces of the polymer film to obtain a reinforcement layer, and impregnating the reinforcement layer with an ionomer to obtain an electrolyte membrane.

Nanoporous oxygen reduction catalyst material comprising PtNiIr. The nanoporous oxygen reduction catalyst material is useful, for example, in fuel cell membrane electrode assemblies.

A method for producing a noble metal-free catalyst comprises providing a catalyst support comprising organic heterocycles as catalyst, and applying an oxidation-inhibiting protective layer. Embodiments further relate to a noble metal-free catalyst, a fuel cell, and a motor vehicle.

A method for producing a noble metal-free catalyst comprises providing a catalyst support comprising organic heterocycles as catalyst, and applying an oxidation-inhibiting protective layer. Embodiments further relate to a noble metal-free catalyst, a fuel cell, and a motor vehicle.

The present invention relates to a catalyst for solid polymer fuel cells in which catalyst particles including platinum and a transition metal M are supported on a carbon powder carrier. The catalyst of the present invention is a catalyst for solid polymer fuel cells in which a molar ratio (Pt/M) of platinum to the transition metal M that form catalyst particles is 2.5 or more, and a ratio (S.sub.COMSA/S.sub.BET) of a platinum specific surface area (S.sub.COMSA) measured by a CO adsorption method to a catalyst specific surface area (S.sub.BET) measured by a BET method is 0.26 or more and 0.32 or less. The catalyst can be produced by preparing an alloy catalyst, then washing the alloy catalyst with a platinum compound solution, and additionally supplying platinum to the surfaces of catalyst particles.