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| Number | Title | Issue Date |
| 7255893 | Protection of non-carbon anodes and other oxidation resistant components with iron oxide-containing coatings A method of forming a dense and crack-free hematite-containing protective layer on a metal-based substrate for use in a high temperature oxidising and/or corrosive environment comprises applying onto the substrate a particle mixture consisting of: 60 to 99 95 weight... | 08/14/2007 |
| 7179505 | Manufacturing method of MoSi-SiC nanocomposite coating The embodiments of the invention relate to a MoSi2-SiC nanocomposite coating layer formed on surfaces of refractory metals such as Mo, Nb, Ta, W and their alloys. The MoSi2-SiC nanocomposite coating layer is manufactured by forming a molybdenum... | 02/20/2007 |
| 6083362 | Dimensionally stable anode for electrolysis, method for maintaining dimensions of anode during electrolysis A dimensionally stable electrode is provided comprising a hollow substrate with an open upper end for confining a fluid containing a metal, a film covering portions of the external surface; and a mechanism for replenishing the film. Also provided is a met... | 07/04/2000 |
| 6066410 | Anode catalyst for fuel cells with polymer electrolyte membranes A platinum/ruthenium alloy catalyst that includes finely dispersed alloy particles on a powdery, electrically conductive carrier material. The catalyst is particularly resistant to carbon monoxide poisoning when the alloy particles display mean crystallit... | 05/23/2000 |
| 6001236 | Application of refractory borides to protect carbon-containing components of aluminium production cells Carbon-containing components of cells for the production of aluminium by the electrolysis of alumina dissolved in a cryolite-based molten electrolyte are protected from attack by liquid and/or gaseous components of the electrolyte in the form of elements,... | 12/14/1999 |
| 5985114 | Carbon bodies resistant to deterioration by oxidizing gases A carbon body, in particular a pre-baked anode of an electrolytic cell for the production of aluminium by the electrolysis of alumina in a molten fluoride electrolyte is treated over its surfaces to improve the resistance thereof to deterioration during o... | 11/16/1999 |
| 5874039 | Low work function electrode A substrate is coated with a compound comprised of a cation completed by a heterocyclic multidentate ligand, which provides a surface having a low work-function and facilitates the emission of electrons.... | 02/23/1999 |
| 5872074 | Leached nanocrystalline materials process for manufacture of the same, and use thereof in the energetic field Leached nanocrystalline materials having a high specific surface are particularly useful for storing hydrogen or as catalysts or electrocatalysts in the manufacture electrodes, especially for fuel cells. Such materials can be manufactured by preparing a n... | 02/16/1999 |
| 5810980 | Low work-function electrode A metal surface is coated with a heterocyclic multidentate ligand compound, reducing work function and facilitating the emission of electrons.... | 09/22/1998 |
| 5679224 | Treated carbon or carbon-based cathodic components of aluminum production cells Carbon or carbon-based cathodes and cell bottoms of electrolytic cells for the production of aluminium in particular by the electrolysis of alumina in a molten halide electrolyte such as cryolite, are treated to better resist intercalation of sodium in th... | 10/21/1997 |
| 5676816 | Catalytic particles electrolytic cell system and method for producing heat Catalytic particles, electrolytic cell and system for producing heat in a water-based liquid electrolyte. The catalytic particles are formed of clay doped with an active gent capable of becoming a proton carrier in the presence of hydrogen or an isotope o... | 10/14/1997 |
| 5672259 | System with electrolytic cell and method for producing heat and reducing radioactivity of a radioactive material by electrolysis An electrolytic cell, system and method for producing excess heat for use and for deactivation an actinide series metal by electrolysis in an aqueous media. The electrolytic cell includes a non-conductive housing having an inlet and an outlet and spaced a... | 09/30/1997 |
| 5618395 | Method of plasma-activated reactive deposition of electrically conducting multicomponent material from a gas phase Uniform electrically conducting multicomponent material is deposited on an electrically conducting substrate by means of a PCVD method. A plasm, for example a glow discharge plasm, a high frequency plasm or a microwave plasm is generated in a reaction spa... | 04/08/1997 |
| 5607563 | System for electrolysis An electrolytic cell and system for electrolysizing and/or heating a liquid electrolyte containing water having a conductive salt in solution flowing through the cell. The electrolytic cell includes a non-conductive housing having an inlet and an outlet a... | 03/04/1997 |
| 5580838 | Uniformly plated microsphere catalyst Cross-linked polymer microspheres having a sulfonated cation exchange surface are carefully separated into fractions of equal size and density. Each fraction is separately plated preferably with copper, palladium, nickel, titanium or any metal cation whic... | 12/03/1996 |
| 5578174 | Conditioning of cell components for aluminum production Components of electrolytic cells for the production of aluminum in particular by the electrolysis of alumina in a molten fluoride electrolyte, made of carbon or other microporous material which remains stable or may be consumed in the cell operating condi... | 11/26/1996 |
| 5534130 | Application of phosphates of aluminum to carbonaceous components of aluminum production cells Carbon-containing components of cells for the production of aluminum by the electrolysis of alumina dissolved in a cryolite-based molten electrolyte are protected from attack by liquid and/or gaseous components of the electrolyte in the form of elements, ... | 07/09/1996 |
| 5441610 | Oxygen supply and removal method and apparatus The present invention relates to apparatus and methods of supplying and removing oxygen. The apparatus includes an oxygen-conducting solid electrolyte. The electrolyte has an oxygen input side and an oxygen output side which are each coated with an electr... | 08/15/1995 |
| 5413689 | Carbon containing body or mass useful as cell component A carbon containing paste for use in particular as components of electrolytic cells as such or compacted to form anodes, cathodes and cell linings of cells for the electrolysis of alumina for the production of aluminium, consists of a compact mixture of o... | 05/09/1995 |
| 5378327 | Treated carbon cathodes for aluminum production, the process of making thereof and the process of using thereof To improve its resistance to penetration and degradation by sodium, a carbon cathode for use in aluminium production by the electrolysis of alumina dissolved in a cryolite-based molten electrolyte is pre-treated with a solution, suspension or melt of a co... | 01/03/1995 |
| 5374342 | Production of carbon-based composite materials as components of aluminium production cells A method of producing a component of an aluminium production cell made of a carbon-based composite material containing a refractory hard metal boride, carbide, oxide, nitride or combinations or mixtures thereof and aluminium as metal, alloy or as an alumi... | 12/20/1994 |
| 5364513 | Electrochemical cell component or other material having oxidation preventive coating A body of carbonaceous or other material for use in corrosive environments such as oxidizing media or gaseous or liquid corrosive agents at elevated temperatures, in particular in molten salts such as cryolite, is coated with a protective surface coating ... | 11/15/1994 |
| 5302258 | Method and apparatus for separating oxygen from a gaseous mixture A solid composition provides high oxygen ion conductivity, and includes a metal oxide combined with multiple dopants. The oxide may, for example, include zirconia, bismuth trioxide, thoria or halfnia. The dopants are chosen such that they are of similar i... | 04/12/1994 |
| 4834851 | Permanent anode An anode comprising an electroconductive substrate, whose external surface at least is selected from the group consisting of vanadium, niobium, tantalum and tungsten, alloys of said metals with each other and alloys of said metals with at least one metal ... | 05/30/1989 |
| 4547278 | Cathode for hydrogen evolution A cathode for hydrogen evolution comprising a substrate stable in aqueous alkaline media having on the surface thereof a coating of particles of an ABN intermetallic, and optionally particles of a metal inert in the electrolyte, e.g., nickel, a... | 10/15/1985 |
| 4514274 | Electrode for electrochemical processes Electrodes comprising a film-forming metal support and a conductive coating in which is embodied a non-conducting particulate or fibrous refractory material. Preferred refractory materials include oxides which may be present as single oxides, binary oxide... | 04/30/1985 |
| 4495046 | Electrode containing thallium (III) oxide An electrode useful in an electrolytic cell contains thallium (III) oxide. A method for enhancing the electrocatalytic activity and/or stability of an electrode includes compounding an outermost layer containing thallium (III) oxide with a conductive subs... | 01/22/1985 |
| 4369105 | Substituted cobalt oxide spinels Electroconductive substrates are coated with an interface layer and then with cobalt oxide spinels conforming substantially to the empirical formula where M represents at least one metal from the Groups IB, IIA, IIB, where Z represents at least one metal ... | 01/18/1983 |
| 4187155 | Molten salt electrolysis A novel method of molten salt electrolysis and novel electrolytic cells for molten salt electrolysis wherein the anodes for the electrolysis are comprised of a self-sustaining matrix of sintered powders of at least one oxycompound such as oxides, multiple... | 02/05/1980 |
| 4146438 | Sintered electrodes with electrocatalytic coating Sintered electrodes for electrolytic processes comprising a self-sustaining body or matrix of sintered powders of an oxycompound of at least one metal selected from the group consisting of titanium, tantalum, zirconium, vanadium, niobium, hafnium, aluminu... | 03/27/1979 |
| 4086155 | Electrolyzer with released gas An electrolyzer comprising a cathode and an anode, disposed in an aqueous electrolyte bath, the electrodes each having at least one active surface directed substantially in facing relation to at least one active surface of the electrode of opposite polari... | 04/25/1978 |
| 4076611 | Electrode with lanthanum-containing perovskite surface An electrode is described which is comprised of an electroconductive substrate having an exterior surface of perovskite of the emperical formula a. wherein A is lanthanum, B. wherein A' is an alkaline earth metal selected from the group consisting of calc... | 02/28/1978 |
| 3977958 | Insoluble electrode for electrolysis Electrodes are prepared by coating electrically conductive substrates with an electrically conductive film comprising a single-metal spinel of the formula Co3 O4. The coating can include modifier oxides selected from Groups III-B thr... | 08/31/1976 |
