Disclosed are a mesoporous support for a catalyst of a fuel cell, which includes a graphite layer formed only on its surface and a method producing the same. The support may include a substrate; a graphite layer in a crystalline form and formed on a surface of a substrate, and further include a first pore having an average pore size of less than about 2 nm and a second pore having an average pore size of about 2 nm to 50 nm.

Manufacturing apparatus, systems and method of making silicon (Si) nanowires on carbon based powders, such as graphite, that may be used as anodes in lithium ion batteries are provided. In some embodiments, an inventive tumbler reactor and chemical vapor deposition (CVD) system and method for growing silicon nanowires on carbon based powders in scaled up quantities to provide production scale anodes for the battery industry are described.

To provide a carbon support for catalysts for fuel cells, which increases the power generation performance of fuel cells, a catalyst for fuel cells, a catalyst layer for fuel cells, and a method for producing the carbon support. A carbon support for catalysts for fuel cells, wherein the carbon support includes at least one pore; wherein a thickness of a carbon wall of the carbon support, which is derived from a three-dimensional pore structure of a silica mold obtained by pore volume measurement of the silica mold by nitrogen adsorption analysis, is 3.3 nm or more and 11.2 nm or less; and wherein a carbon wall content is more than 60.3 ml/g and less than 190.8 ml/g.

A fuel cell catalyst for oxygen reduction reactions including Pt—Ni—Cu nanoparticles supported on nitrogen-doped mesoporous carbon (MPC) having enhanced activity and durability, and method of making said catalyst. The catalyst is synthesized by employing a solid state chemistry method, which involves thermally pretreating a N-doped MPC to remove moisture from the surface; impregnation of metal precursors on the N-doped MPC under vacuum condition; and reducing the metal precursors in a stream of CO and H.sub.2 gas mixture.

An oxygen evolution reaction catalyst includes iridium oxide that exhibits a weight loss of less than 1% by weight upon exposure of the oxygen evolution reaction catalyst to a 3.3 vol % hydrogen stream in argon at a temperature of 80° C. for 12 hours and has a BET specific surface area of more than 15 m.sup.2/g.

A metal-air battery includes an anode; a low-dimensional catalyst cathode; and an electrolyte; wherein: the low-dimensional catalyst cathode comprises a functional metal layer on a carbon support overcoated with a catalyst layer; the electrolyte comprises an aprotic solvent that is an ether-based solvent, a fluorinated ether-based solvent, an oligo (ethylene oxide) solvent, or a mixture of any two or more thereof; and the electrolyte is free of carbonate solvents.

Provided according to an embodiment are a carbon electrode material and a method for preparing same. The method comprises the steps: mixing a carbon precursor powder, a molding powder, and a metal precursor powder to form a mixed powder; and thermally treating the mixed powder to form a nitrogen-doped carbon composite, wherein: the molding powder includes a metal-organic framework (MOF); the carbon precursor powder is contained in an amount of 10 wt % to 20 wt % on the basis of the total mixed powder; the molding powder is contained in an amount of 50 wt % to 80 wt % on the basis of the total mixed powder; the metal precursor powder is contained in an amount of 0.1 wt % to 5 wt % on the basis of the total mixed powder; and the carbon composite has a monoatomic or nanometer-unit sized metal located therein.

A method for producing a catalyst for a fuel cell comprising: a) injecting carbon particles into a fluidized bed reactor; b) evacuating the fluidized bed reactor to form a base pressure; c) introducing a catalytic metal precursor together with a carrier gas into the fluidized bed reactor to contact the catalytic metal precursor with the carbon particles; d d) purging a purge gas into the fluidized bed reactor; e) introducing a reaction gas into the fluidized bed reactor to attach the catalytic metal precursor to the carbon particles; and f) purging a purge gas into the fluidized bed reactor, wherein, the catalytic metal is attached to the carbon particles in a form of nano-sized spot.

A catalyst having an excellent oxygen reduction catalytic ability, and showing excellent durability when used for an electrode for fuel cells and metal-air batteries; and a production method of a catalyst having an excellent oxygen reduction catalytic ability, and showing excellent durability when used for an electrode for fuel cells and metal-air batteries are provided. The production method of a catalyst includes: a step (a) of dissolving a metal complex in a solvent to prepare a solution; a step (b) of dispersing a conductive powder in the solution to prepare a dispersion liquid; and a step (c) of removing the solvent from the dispersion liquid, in which a complex is formed by adsorbing the metal complex on a surface of the conductive powder to use the complex as a catalyst.

A novel alloy nanoparticle which the alloy nanoparticle contains five or more types of elements, in the case where the alloy nanoparticle is directly supported on a carbon material carrier, the carbon material carrier excludes graphene or carbon fibers; an aggregate of alloy nanoparticles; a catalyst; a production method for alloy nanoparticles.