Abstract: Disclosed is a component for solid oxide fuel cells that is excellent in both electrical conductivity and chromium poisoning resistance. As a substrate, a ferritic stainless steel having a chemical composition containing, in mass %, Cr: 14.0% to 32.0% and Al: 2.50% to 7.00% is used. Precious metal particles are coated on a surface of the substrate. The precious metal particles have: an average particle size of 1 ?m or more and 10 ?m or less; a coating thickness of 0.5 ?m or more and 10 ?m or less; and a surface coverage of 1.0% or more.

Abstract: A component for an electrochemical device, the component including: a metallic substrate; and a plurality of particles bonded to a surface of the substrate by a metallurgical bond, wherein the particles include a metal, carbon, or a combination thereof, wherein the metallurgical bond is between the particles and the substrate, wherein a total projected area of the metallurgical bond is less than 90% of a total projected area of the substrate, and wherein the metallurgical bond has a composition which is a combination of a composition of the metallic substrate and a composition of the particle, a reaction product of the metallic substrate and the particle, or a combination thereof.

Abstract: Method for forming a metallic component surface to achieve lower electrical contact resistance. The method comprises modifying a surface chemical composition and creating a micro-textured surface structure of the metallic component that includes small peaks and/or pits. The small peaks and pits have a round or irregular cross-sectional shape with a diameter between 10 nm and 10 microns, a height/depth between 10 nm and 10 microns, and a distribution density between 0.4 million/cm2 and 5 billion cm2.

Abstract: A component for an electrochemical device, the component including: a metallic substrate; and a plurality of particles bonded to a surface of the substrate by a metallurgical bond, wherein the particles include a metal, carbon, or a combination thereof, wherein the metallurgical bond is between the particles and the substrate, wherein a total projected area of the metallurgical bond is less than 90% of a total projected area of the substrate, and wherein the metallurgical bond has a composition which is a combination of a composition of the metallic substrate and a composition of the particle, a reaction product of the metallic substrate and the particle, or a combination thereof.

Abstract: Method for forming a metallic component surface to achieve lower electrical contact resistance. The method comprises modifying a surface chemical composition and creating a micro-textured surface structure of the metallic component that includes small peaks and/or pits. The small peaks and pits have a round or irregular cross-sectional shape with a diameter between 10 nm and 10 microns, a height/depth between 10 nm and 10 microns, and a distribution density between 0.4 million/cm2 and 5 billion cm2.

Abstract: Method for forming a metallic component surface to achieve lower electrical contact resistance. The method comprises modifying a surface chemical composition and creating a micro-textured surface structure of the metallic component that includes small peaks and/or pits. The small peaks and pits have a round or irregular cross-sectional shape with a diameter between 10 nm and 10 microns, a height/depth between 10 nm and 10 microns, and a distribution density between 0.4 million/cm2 and 5 billion cm2.

Abstract: Method for forming a metallic component surface to achieve lower electrical contact resistance. The method comprises modifying a surface chemical composition and creating a micro-textured surface structure of the metallic component that includes small peaks and/or pits. The small peaks and pits have a round or irregular cross-sectional shape with a diameter between 10 nm and 10 microns, a height/depth between 10 nm and 10 microns, and a distribution density between 0.4 million/cm2 and 5 billion cm2.

Abstract: Method for forming a metallic component surface to achieve lower electrical contact resistance. The method comprises modifying a surface chemical composition and creating a micro-textured surface structure of the metallic component that includes small peaks and/or pits. The small peaks and pits have a round or irregular cross-sectional shape with a diameter between 10 nm and 10 microns, a height/depth between 10 nm and 10 microns, and a distribution density between 0.4 million/cm2 and 5 billion cm2.

Abstract: A method is described that can be used in electrodes for electrochemical devices and includes disposing a precious metal on a top surface of a corrosion-resistant metal substrate. The precious metal can be thermally sprayed onto the surface of the corrosion-resistant metal substrate to produce multiple metal splats. The thermal spraying can be based on a salt solution or on a metal particle suspension. A separate bonding process can be used after the metal splats are deposited to enhance the adhesion of the metal splats to the corrosion-resistant metal substrate. The surface area associated with the splats of the precious metal is less than the surface area associated with the top surface of the corrosion-resistant metal substrate. The thermal spraying rate can be controlled to achieve a desired ratio of the surface area of the metal splats to the surface area of the corrosion-resistant metal substrate.

Abstract: Methods for providing a metal surface structure and treatment process to prevent the corrosion (e.g., high electrochemical potential oxidization and hydrogen embrittlement) of a metallic component used in electrolyzer operational conditions. The oxide surface scale of a metal plate is used to prevent the corrosion, and electrical conductive materials such as e.g., precious metals or carbon are used to provide the surface electrical conductance of the metallic components. The methods advantageously produce, at a low cost, metal components for electrolyzers that need high electrical conductance and corrosion resistance for long term operation.

Abstract: Methods for coating a metal substrate or a metal alloy with electrically conductive titania-based material. The methods produce metal components for electrochemical devices that need high electrical conductance, corrosion resistance and electrode reaction activities for long term operation at a low cost.

Abstract: Methods for coating a metal substrate or a metal alloy with electrically conductive titania-based material. The methods produce metal components for electrochemical devices that need high electrical conductance, corrosion resistance and electrode reaction activities for long term operation at a low cost.

Abstract: Methods for coating a metal substrate with electrically conductive dots or splats of active materials for use in battery applications that improve the corrosion resistant metallic component electrode activity, or electrical conductivity of those components at reduced or lower costs.

Abstract: Methods for coating a metal substrate or a metal alloy with electrically conductive titania-based material. The methods produce metal components for electrochemical devices that need high electrical conductance, corrosion resistance and electrode reaction activities for long term operation at a low cost.

Abstract: A method to use a novel structured metal-ceramic composite powder to improve the surface electrical conductivity of corrosion resistant metal substrates by thermal spraying the structured powder onto a surface of a metallic substrate is disclosed. The structured powder has a metal core and is wholly or partially surrounded by an electrically conductive ceramic material such as a metal nitride material. The metal cores may have the ceramic material formed on them prior to a thermal spraying process performed in an inert atmosphere, or the thermal spraying may be performed in a reactive atmosphere such that the ceramic coating forms on the cores during the thermal spraying process and/or after deposition. The metal cores will bond conductive ceramic material onto the surface of the substrate through the thermal spray process.

Abstract: A separator plate for use in a fuel cell stack in a fuel cell device includes a porous core with a metal layer on either side of the porous core. The metal layer has through holes formed therein such as by perforation. The metal layers are contoured to provide flow field channels, and the porous layer may have channels formed therein that are parallel to the metal layers that can be used for cooling water. A monopolar fuel stack includes twin cell units that include a center separator plate, a pair of membrane electrode assemblies, one on each side of the center separator plate, and a pair of outer plates which may have through holes formed therein, one on each side of the membrane electrode assemblies opposite the center separator plate. The outer plates cover substantially an entire electrode to which they are adjacent.

Abstract: A method is described that can be used in electrodes for electrochemical devices and includes disposing a precious metal on a top surface of a corrosion-resistant metal substrate. The precious metal can be thermally sprayed onto the surface of the corrosion-resistant metal substrate to produce multiple metal splats. The thermal spraying can be based on a salt solution or on a metal particle suspension. A separate bonding process can be used after the metal splats are deposited to enhance the adhesion of the metal splats to the corrosion-resistant metal substrate. The surface area associated with the splats of the precious metal is less than the surface area associated with the top surface of the corrosion-resistant metal substrate. The thermal spraying rate can be controlled to achieve a desired ratio of the surface area of the metal splats to the surface area of the corrosion-resistant metal substrate.

Abstract: An apparatus and a method for generating hydrogen, the apparatus including a first electrode and a second electrode. The first electrode includes a catalytic material for promoting the formation of protons. The apparatus also includes a proton conductive electrolyte disposed between the first and second electrodes and a voltage source connected to the first electrode and to the second electrode. The voltage source is configured to provide a driving voltage having a base voltage and a pulsed voltage superposed on the base voltage to generate hydrogen. The apparatus has an input through which syngas or a hydrocarbon compound or both is introduced into the first electrode; and an output for discharging the generated hydrogen, the output being disposed opposite the input on an opposite side of the proton conductive electrolyte.