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Class 204/290.12 - Refractory metal (i.e., Ti, V, Cr, Zr, Nb or Cb, Mo, Hf, Ta, or W) or compound containing


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Electrode containing a refractory metal (i.e., titanium
No. of patents: 328
Last issue date: 05/17/2011


1                  
NumberTitleIssue Date
7943019Insoluble electrode
Provided is an economical long-life insoluble anode capable of maintaining an anode function stably for a long time even if it is used in a part where severe consumption occurs to generate a cathodizing phenomenon, and also capable of reducing the amount of an elect...
05/17/2011
7815781Electrode for gas evolution and method for its production
The invention relates to the production of multilayer electrodes on valve metal substrates, through a method comprising the application in alternate cycles of a solution containing precursors of noble metals, and of a second solution containing transition metals cap...
10/19/2010
7468121Conductive diamond electrode and process for producing the same
The present invention provides a conductive diamond electrode having: a conductive substrate; a coating layer formed on a surface of the conductive substrate, the coating layer containing one of a metal and an alloy each including at least one of niobium and tantalu...
12/23/2008
7378005Electrode for electrolysis and method of manufacturing electrode for electrolysis
An object is to provide an electrode for electrolysis which is preferable in generation of ozone water usable in cleaning and sterilizing of water and sewage, or cleaning in a semiconductor device manufacturing process by an electrolysis process, and a method of man...
05/27/2008
7374647Arrangement of an electrode, method for making same, and use thereof
A device of an electrode is disclosed, comprising a core and a surface coating of electrically-conductive material, and it is characterized by that the surface coating comprises one or several layers with a pore-free surface, each with a thickness of 0.005 mm to 0.0...
05/20/2008
7332065Electrode
The present invention relates to a process for manufacturing an electrode comprising depositing on an electrode substrate a binder dispersion comprising a precursor of a conductive or semiconductive oxide, forming a conductive or semiconductive oxide coating from th...
02/19/2008
7282294Hydrogen storage-based rechargeable fuel cell system and method
A dual mode electrochemical system comprises a first electrode capable of storing hydrogen, a second electrode, a substantially electrically insulating and substantially ionically conducting membrane interposed therebetween and an electrolyte. In a first mode, upon ...
10/16/2007
7258778Electrocatalytic coating with lower platinum group metals and electrode made therefrom
The present invention relates to an electrocatalytic coating and an electrode having the coating thereon, wherein the coating is a mixed metal oxide coating, preferably platinum group metal oxides, with or without low levels of valve metal oxides. The electrocatalyt...
08/21/2007
7255893Protection 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
7255894Non-carbon anodes for aluminium electrowinning and other oxidation resistant components with slurry-applied coatings
A method of manufacturing a component, in particular an aluminium electrowinning anode, for use at elevated temperature in an oxidising and/or corrosive environment comprises: applying onto a metal-based substrate layers of a particle mixture containing iron oxide p...
08/14/2007
7232509Hydrogen evolving cathode
Highly active hydrogen evolving cathode using a platinum group metal catalyst in an amount smaller than that used in the conventional hydrogen evolving cathode. The hydrogen evolving cathode includes a conductive substrate, and a catalyst layer comprising at least o...
06/19/2007
7232508Electrolytic electrode and process of producing the same
An electrolytic electrode having an interlayer having more excellent peeling resistance and corrosion resistance and longer electrolytic life than conventional electrolytic electrodes and capable of flowing a large amount of current at the industrial level and a pro...
06/19/2007
7211177Electrode for electrolysis in acidic media
Electrode at least comprising an electroconductive support of a titanium-palladium alloy, titanium, tantalum or compounds or alloys of titanium or of tantalum, an electrochemically active coating and an interlayer between the support and the electrochemically active...
05/01/2007
7201830Anode for oxygen evolution and relevant substrate
The invention concerns an anode for gas evolution in electrochemical applications comprising a titanium or other valve metal substrate characterized by a surface with a low average roughness, having a profile typical of a localized attack on the crystal grain bounda...
04/10/2007
7189431Method for forming a passivated metal layer
A method for forming a passivated metal layer that preserves the properties and morphology of an underlying metal layer during subsequent exposure to oxygen-containing ambients. The method includes providing a substrate in a process chamber, exposing the substrate t...
03/13/2007
6972078Catalytic powder and electrode made therewith
A catalytic powder comprising a plurality of support metal particles with a porous coating (12) surrounding the metal particles (11), the porous coating comprising either an electrocatalytic metal or an electrocatalytic metal continuous phase in admixt...
12/06/2005
6921469Electrode constructs, and related cells and methods
Described are preferred electrode structures which desirably include multiple thin conductive layers stably bonded to an electrode substrate through a bonding layer. Also described are preferred electrode structures which include reinforcing carbon layers, which inc...
07/26/2005
6905581Oxygen permeable electrode system
An electrochemical device (18) for generating a desired gas of the type includes an ionically conductive electrolyte layer (20), a porous electrode layer (22), and a current collector layer (16) that has a high electrical conductivity and...
06/14/2005
6733639Electrode
The invention relates to a gas diffusion electrode (1) comprising a hydrophobic gas diffusion layer (3b), a reaction layer (3a), and a hydrophilic layer (5) arranged in the mentioned order wherein the reaction layer (3
05/11/2004
6617154Electroporation chamber including an electrode having a continuous, crystalline metal nitride coating
An improved electrode for use in generating an electrical field in a saline solution is provided. In particular, a continuous crystalline metal nitride coated electrode is provided for use in a variety of saline solution applications, such as in an electr...
09/09/2003
6599404Flake-resistant multilayer thin-film electrodes and electrolytic cells incorporating same
Described are preferred multilayer, thin-film electrodes (11) that have improved resistance to flaking or cracking under conditions of operation. Also described are electrolytic cells (17) incorporating such electrodes (11), and methods for selecting elec...
07/29/2003
6589405Multilayer oxide coated valve metal electrode for water purification
An electrode with large active surface area is made by winding a Ti-fiber tow around a rectangular Ti-plate, and an electrocatalytic coating of three layers is applied. A precoat comprising a mixture of iridium dioxide and tantalum pentoxide is applied fi...
07/08/2003
6572758Electrode coating and method of use and preparation thereof
An electrolytic cell producing sodium chlorate uses an electrode, specifically an anode, having a surface or coating or treatment of a mixed metal oxide having ruthenium oxide as an electrocatalyst, a precious metal of the platinum group or its oxide as a...
06/03/2003
6537438Method for protecting electrodes during electrolysis cell start-up
The present invention is directed to methods for applying a protective layer (42) to the cathode (40) of an electrolysis cell (10), where the cell also contains inert anodes (50) and the protective layer (42) can comprise a plurality of layers (70, 72, 74...
03/25/2003
6527924Cathode for electrolyzing aqueous solutions
A cathode comprising an electrically conductive substrate made of titanium, nickel, tantalum, zirconium, niobium, iron or alloys thereof, coated with an intermediate layer of oxides of titanium and of a precious metal, and with an outer layer comprising m...
03/04/2003
6485961Electrodes having a continuous, crystalline metal nitride coating and method of use
An improved electrode for use in generating an electrical field in a saline solution is provided. In particular, a continuous crystalline metal nitride coated electrode is provided for use in a variety of saline solution applications, such as in an electr...
11/26/2002
6475358Method for providing a protective coating for carbonaceous components of an electrolysis cell
A method of treating a carbonaceous cell component of an electrolyte cell for the production of aluminum, to impart protection against deterioration during operation of the cell. A liquid suspension of a refractory material dispersed in a lignosulfonate b...
11/05/2002
6436274Slow consumable non-carbon metal-based anodes for aluminium production cells
A non-carbon, metal-based slow-consumable anode of a cell for the electrowinning of aluminium self-forms during normal electrolysis an electrochemically-active oxide-based surface layer (20). The rate of formation (35) of the layer (20) is substantially e...
08/20/2002
6379526Non-carbon metal-based anodes for aluminium production cells
A non-carbon metal-based anode of a cell for the electrowinning of aluminium comprising an electrically conductive metal substrate resistant to high temperature, the surface of which becomes passive and substantially inert to the electrolyte, and a coatin...
04/30/2002
6375827Electrochemical treating method and apparatus
An electrochemical treating apparatus comprising an electrolytic cell comprising an anode and a cathode spaced apart from the anode, the anode including an electrode material made of diamond and the cathode including an electrode material made of diamond....
04/23/2002
6372099Cells for the electrowinning of aluminium having dimensionally stable metal-based anodes
A cell for the electrowinning of aluminium comprising one or more anodes, each having a metal-based anode substrate, comprising a metal core covered with an metal layer, an oxygen barrier layer, one or more intermediate layers and an iron layer. The anode...
04/16/2002
6365018Surface coated non-carbon metal-based anodes for aluminium production cells
A non-carbon, metal-based, high temperature resistant, electrically conductive and electrochemically active anode of an aluminum production cell has a metal-based substrate having an adherent coating applied prior to its immersion into the electrolyte and...
04/02/2002
6361680Ultrastable cell component for aluminum production cells and method
Method and cell component for the electrowinning of aluminum by the electrolysis of alumina dissolved in a molten fluoride electrolyte comprises a porous micropyretic reaction product of nickel, aluminum, iron, copper and at least one additive element sel...
03/26/2002
6352625Specific cathode, used for preparing an alkaline metal chlorate and method for making same
The invention relates to a specific cathode comprising a substrate made of an element chosen from the group formed by titanium, nickel, tantalum, zirconium, niobium and alloys thereof, the said substrate being coated with an interlayer of a mixed oxide ba...
03/05/2002
6352622Lead electrode
A compound electrode incorporating a lead substrate utilizes the lead as a support structure. This support structure provides a surface that engages a valve metal expanded metal mesh. The mesh member has a front and back surface with the back surface faci...
03/05/2002
6312571Activated cathode and process for preparation thereof
An activated cathode comprising an electrically conductive substrate, an interlayer comprising a nickel oxide formed on the surface of the electrically conductive substrate, and a catalyst layer containing at least one lanthanum component selected from ox...
11/06/2001
6274009Generator for generating chlorine dioxide under vacuum eduction in a single pass
A vacuum operated electrolytic generator producing a solution of chlorine dioxide from a buffered aqueous alkali metal chlorite solution in one pass through the cell is disclosed. The cell contains a high surface area anode, a corrosion-resistant highly c...
08/14/2001
6267868Method and tool for electrochemical machining
An electrode for use in an electrochemical machining process comprising an outer metal skin of corrosion resistant material, an inner core of conductive material, and an insulating coating disposed on an external surface of the outer metal skin. The exter...
07/31/2001
6258224Multi-layer cathode structures
A process of producing multi-layer cathode structures. In one aspect, the process comprises providing a carbonaceous cathode substrate, and forming at least one layer of a metal boride-containing composite refractory material over the substrate, wherein t...
07/10/2001
6251254Electrode for chromium plating
An electrode adapted for chromium plating from trivalent chromium baths which comprises a conductive base, an electrode material layer comprising iridium oxide formed thereon, and a porous layer formed on the surface of the electrode material layer. The p...
06/26/2001
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