The present disclosure relates to a tube-shaped catalyst complex and a catalyst slurry including the same for a fuel cell. The catalyst complex for a fuel cell comprises a tubular inner layer including an ionomer and an outer layer provided on an outer surface of the inner layer and including a catalyst.

Disclosed are methods for forming a supported catalyst and catalysts formed according to disclosed methods. Methods include contacting a catalyst support with a precursor solution and displacing the solvent of the precursor solution (e.g., water) with a second solvent that has a lower surface tension than the first solvent. The second solvent displaces the first solution according to the Marangoni effect. Methods also include activation of the precursor to form a catalyst, e.g., a supported platinum group metal catalyst or the like.

The present invention relates to a membrane electrode unit comprising a polymer membrane doped with a mineral acid as well as two electrodes, characterized in that the polymer membrane comprises at least one polymer with at least one nitrogen atom and at least one electrode comprises a catalyst which is formed from at least one precious metal and at least one metal less precious according to the electrochemical series.

The present invention relates to a method for producing a catalyst for an electrochemical cell, wherein: a graphited porous carbon material is treated with an oxygen-containing plasma or an aqueous medium containing an oxidising agent, at least one noble metal compound is deposited on the treated carbon material, the impregnated carbon material is brought into contact with a reducing agent such that the noble metal compound is reduced to a metallic noble metal.

Provided are an electrode catalyst layer, a membrane electrode assembly and a polymer electrolyte fuel cell, having sufficient drainage property and gas diffusibility with high power generation performance over a long term. An electrode catalyst layer (10) bonded to a surface of a polymer electrolyte membrane (11) includes at least a catalyst substance (12), a conductive carrier (13), a polymer electrolyte (14) and fibrous substances (15). The number of the fibrous substances (15) in which inclination θ of axes with respect to a surface of the electrode catalyst layer (10) bonded to the surface of the polymer electrolyte membrane (11) is 0°≤θ<45°, among the fibrous substances (15), is greater than 50% of the total number of the fibrous substances (15) contained.

There is provided a catalyst layer for a fuel cell that can inhibit reduction in water electrolysis function. The catalyst layer for a fuel cell according to this disclosure comprises carbon supports on which Pt particles are supported, and Ir oxide particles, wherein the ratio of the mean primary particle size of the Ir oxide particles with respect to the mean primary particle size of the Pt particles is 20 or greater. The mean primary particle size of the Pt particles may be 20.0 nm or smaller and the mean primary particle size of the Ir oxide particles may be 100.0 nm to 500.0 nm.

The present invention relates to 2D-material based composite materials such as aerogels and particularly, although not exclusively, to deposition of nanoparticles on 2D-material based aerogels. Also described are methods for manufacturing such materials.

In one embodiment, systems and methods include using a battery to provide electrical charge to a vehicle. The battery comprises a first half of a housing coupled comprising one or more air vents and an anode disposed at least partially within the first half of the housing. The battery further comprises a second half of the housing comprising one or more air vents, wherein the anode extends from the first half of the housing and into the second half of the housing. The battery further comprises a pair of cathodes disposed within the second half of the housing, wherein the pair of cathodes extends from the second half of the housing and into the first half of the housing, wherein the anode is disposed between the pair of cathodes, wherein there is a gap between the anode and each one of the pair of cathodes.

A lithium battery and method for fabricating the same are provided herein. The battery cathode comprises a carbon structure filled with a catalyst, such as palladium-catalyst-filled carbon nanotubes (CNTs). The carbon structure provides a barrier between the catalyst and the electrolyte providing an increased stability of the electrolyte during both discharging and charging of a battery.

Proposed is an iridium alloy catalyst having reversible catalytic activity for an oxygen evolution reaction (OER), a hydrogen evolution reaction (HER), and a hydrogen oxidation reaction (HOR) by including an iridium alloy including iridium (Ir) and nickel (Ni). The iridium alloy catalyst according to the present disclosure is rapidly converted to an iridium alloy catalyst in an oxide form and an iridium alloy catalyst in a metallic form according to applied voltage by controlling its crystallinity. Thus, even in case an oxide layer is formed after the OER, the oxidation layer disappears during the HER and HOR and the properties of an iridium metal catalyst remain, thereby maintaining HER/HOR performance.