Patent classifications
C25D15/02
Roll-to-roll fabrication of high performance fuel cell electrode with core-shell catalyst using seeded electrodes
A method for forming a fuel cell catalyst includes a step of forming an ionomer-containing layer including carbon particles and an ionomer. Tungsten-nickel alloy particles are formed on the carbon particles. At least a portion of the nickel in the tungsten-nickel alloy particles is replaced with palladium to form palladium-coated particles. The palladium-coated particles include a palladium shell covering the tungsten-nickel alloy particles. The palladium-coated particles are coated with platinum to form an electrode layer including core shell catalysts distributed therein.
PROCESSES FOR PRODUCING COATED SURFACES, COATINGS AND ARTICLES USING THEM
Processes for producing coated surfaces and coatings are described. The processes can be used to produce a surface coating comprising an alloy layer. The produced alloy layer can include molybdenum or tungsten in combination with one or more of nickel, cobalt, chromium, tin, phosphorous, iron, magnesium or boron or other materials.
ARTICLES INCLUDING SURFACE COATINGS ON EXTERNAL SURFACES, INTERNAL SURFACES OR BOTH
Rods, pipes and internal cavities that include a coated surface are described. The rod or pipe can include an alloy layer on an external surface, an internal surface or both. The alloy layer can include molybdenum or tungsten and at least one element or at least one compound comprising one or more of nickel, cobalt, chromium, tin, phosphorous, iron, magnesium or boron.
Hydraulic devices including coated surfaces
Hydraulic devices that include a moveable component configured to contact a functional fluid during movement of the hydraulic device are described. The hydraulic device can include a coating on a surface. The coating can include a metal or metal alloy such as, for example, a molybdenum or tungsten in combination with one or more other materials.
Hydraulic devices including coated surfaces
Hydraulic devices that include a moveable component configured to contact a functional fluid during movement of the hydraulic device are described. The hydraulic device can include a coating on a surface. The coating can include a metal or metal alloy such as, for example, a molybdenum or tungsten in combination with one or more other materials.
METAL FOAMS
Disclosed is a process for the production of an open cell porous structure the cells of which are optionally filled with an elastomeric or thermosetting plastic material. The open cell porous structure comprises a nanocrystalline metallic coating comprising nanocrystals having a crystallite size of from about 5 nm to about 150 nm.
THREE-DIMENSIONAL COMPOSITES OF NICKEL COBALT OXIDE/ GRAPHENE ON NICKEL FOAM FOR SUPERCAPACITOR ELECTRODES, AND PREPARATION METHOD THEREOF
Provided is a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam as high-performance electrode materials for supercapacitors and a method for preparing the same, and the electrode comprising a three-dimensional nickel cobalt oxide/graphene on nickel foam exhibited an ultrahigh specific capacitance of 2,260 F/g at a current density of 1 A/g.
ADDITIVE MANUFACTURING OF A COMPLEX PRODUCT
A method of producing a complex product includes designing a three dimensional preform of the complex product, creating a three dimensional preform of the complex product using the model, depositing a material on the preform, and removing the preform to complete the complex product. In one embodiment the system provides a complex heat sink that can be used in heat dissipation in power electronics, light emitting diodes, and microchips.
Plating or coating method for producing metal-ceramic coating on a substrate
A method for producing a metal-ceramic composite coating with increased hardness on a substrate includes adding a sol of a ceramic phase to the plating solution or electrolyte. The sol may be added prior to and/or during the plating or coating and at a rate of sol addition controlled to be sufficiently low that nanoparticles of the ceramic phase form directly onto or at the substrate and/or that the metal-ceramic coating forms on the substrate with a predominantly crystalline structure and/or to substantially avoid formation of nanoparticles of the ceramic phase, and/or agglomeration of particles of the ceramic phase, in the plating solution or electrolyte. The ceramic phase may be a single or mixed oxide, carbide, nitride, silicate, boride of Ti, W, Si, Zr, Al, Y, Cr, Fe, Pb, Co, or a rare earth element. The coating, other than the ceramic phase may comprise Ni, NiP, NiWP, NiCuP, NiB, Cu, Ag, Au, Pd.
Plating or coating method for producing metal-ceramic coating on a substrate
A method for producing a metal-ceramic composite coating with increased hardness on a substrate includes adding a sol of a ceramic phase to the plating solution or electrolyte. The sol may be added prior to and/or during the plating or coating and at a rate of sol addition controlled to be sufficiently low that nanoparticles of the ceramic phase form directly onto or at the substrate and/or that the metal-ceramic coating forms on the substrate with a predominantly crystalline structure and/or to substantially avoid formation of nanoparticles of the ceramic phase, and/or agglomeration of particles of the ceramic phase, in the plating solution or electrolyte. The ceramic phase may be a single or mixed oxide, carbide, nitride, silicate, boride of Ti, W, Si, Zr, Al, Y, Cr, Fe, Pb, Co, or a rare earth element. The coating, other than the ceramic phase may comprise Ni, NiP, NiWP, NiCuP, NiB, Cu, Ag, Au, Pd.