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Class 204/290.09 - Plural metal oxides containing


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Electrode containing two or more metal oxide compounds (e.g.,
No. of patents: 87
Last issue date: 03/29/2011


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NumberTitleIssue Date
7914653Anode for electrochemical reaction
Disclosed is an anode for electrochemical reactions, such as electrolysis and electrodeposition, comprising a titanium substrate covered with metal oxide, in which the amount of platinum group element(s) is decreased in comparison with the ordinary anode of platinum...
03/29/2011
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
7247229Coatings for the inhibition of undesirable oxidation in an electrochemical cell
A process for electroplating of metal utilizing a valve metal electrode substrate containing multiple coating layers is disclosed. A top coating layer of a valve metal oxide is applied over a first coating layer of an electrochemically active coating. The electrode ...
07/24/2007
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
6802948Copper electrowinning
There is disclosed a method for cooper electrowinning and a modified lead electrode for use in such method. The modified electrode is suitable for use as an oxygen anode in low current density, oxygen-evolving applications. ...
10/12/2004
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
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
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
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
6217729Anode formulation and methods of manufacture
The present invention provides an improved anode formulation and an improved method of manufacture. More specifically, the invention provides a tri-layer anode having an improved service life when used, for example, for steel strip electrogalvinizing. In ...
04/17/2001
6103090Electrocatalytically active non-carbon metal-based anodes for aluminium production cells
A non-carbon, metal-based high temperature resistant anode of a cell for the production of aluminium has a metal-based substrate coated with one or more electrically conductive adherent applied layers, at least one electrically conductive layer being elec...
08/15/2000
6071570Electrodes of improved service life
A method of preparing electrodes is now described, which electrodes have enhanced adhesion of subsequently applied coatings combined with excellent coating service life. In the method, a substrate metal, such as a valve metal as represented by titanium, i...
06/06/2000
6040077Catalyst for membrane electrode assembly and method of making
Nanostructured elements are provided for use in the electrode of a membrane electrode assembly for use in fuel cells, sensors, electrochemical cells, and the like. The nanostructured elements comprise acicular microstructured support whiskers bearing acic...
03/21/2000
6019878Anode for oxygen evolution in electrolytes containing fluorides or fluoride-complex anions
The invention discloses a new electrode suitable for use as an anode for oxygen evolution from electrolytes containing fluorides or fluoride-complex anions even in high concentrations. The anode of the invention comprises a titanium substrate provided with a ...
02/01/2000
5783053Combination inner plate and outer envelope electrode
Electrodes in plate form can be electrocatalytically coated and secured to a current distributor, such as by welding to a base plate, and may be serviceable, e.g., as anodes, in cells electrolyzing brine. Recoating of plate electrodes can require removal ...
07/21/1998
5587058Electrode and method of preparation thereof
An electrode for electrolysis of solutions of electrolytes comprising a support of passivated film forming metal or alloy thereof, having a composite coating consisting essentially of oxides of metals selected from the group consisting of iridium, rutheni...
12/24/1996
5531875Electrode substrate for electrolysis and production method thereof
There are provided an electrode substrate for electrolysis comprising an electrically conductive metallic base material and a coating layer having a thickness of from 10 to 200 μm composed of a platinum group metal and partial oxides of a non-stoichiomet...
07/02/1996
5439576Apparatus for the sterilization of water
An apparatus for sterilizing water by anodic oxidation. A reactor contains a plurality of anodes (3) and cathodes (4) arranged as parallel plates within the reactor. The anodes and cathodes are arranged in series within four modules (2). Each module inclu...
08/08/1995
5411646Cathodic protection anode and systems
A continuous length anode is formed of relatively small valve metal wire having a electrocatalytic coating braided into a highly flexible ribbon. The wire may be copper cored. The valve metal is preferably titanium, although tantalum or niobium are also p...
05/02/1995
5395492Apparatus for the sterilization of water
An apparatus for sterilizing water by anodic oxidation. A reactor contains a plurality of anodes (3) and cathodes (4) arranged as parallel plates within the reactor. The anodes and cathodes are arranged in series within four modules (2). Each module inclu...
03/07/1995
5354444Electrode for electrolytic processes
An electrolytic electrode substrate comprises an electrically conductive substrate and, formed on the surface of the electrically conductive substrate, an oxide layer having a thickness of from 10 to 200 μm, wherein the oxide in the oxide layer comprises...
10/11/1994
5334293Electrode comprising a coated valve metal substrate
An electrode which comprises a substrate of a valve metal or an alloy thereof having properties similar to those of the valve metal and a coating comprising an outer layer which comprises RuO2, an oxide of at least one non-noble metal and at le...
08/02/1994
5314601Electrodes of improved service life
A metal surface is now described having enhanced adhesion of subsequently applied coatings combined with excellent coating service life. The substrate metal of the article, such as a valve metal as represented by titanium, is provided with a highly desira...
05/24/1994
5294317Oxygen generating electrode
An oxygen generating electrode has on a conductive substrate a first layer of metallic platinum and tantalum oxide containing 80-99 mol% of Ta and 20-1 mol% of Pt, a second layer of iridium oxide and tantalum oxide containing 80-99.9 mol% of Ir and 20-0.1...
03/15/1994
5290415Electrolytic electrode
An electrolytic electrode comprising a substrate made of a valve metal, an intermediate layer formed on a surface of the substrate containing an oxide of at least one metal selected from the group consisting of niobium, tantalum, titanium, and zirconium, ...
03/01/1994
5232576Anode for chromium plating and processes for producing and using the same
There are described an anode, a process for producing the same, an apparatus for electrolytic chromium plating, and a method for electrolytic chromium plating, using such anode, wherein the anode comprises an electrically conductive substrate comprising a...
08/03/1993
5156726Oxygen-generating electrode and method for the preparation thereof
The electrode of the invention suitable for use in an oxygen-generating electrolytic process with durability comprises (A) a substrate of, e.g., titanium metal; (B) an undercoating layer thereon which is formed of a mixture of an iridium oxide and tantalu...
10/20/1992
5128000Dimensionally stable anodes and their use in the preparation of alkali metal dichromates and chromic acid
A dimensionally stable anode comprised of a) an electrically conductive valve metal b) a conductive intermediate layer and c) an electrode coating of an electrocatalytically active substance, wherein the intermediate layer comprises one or more noble metals or thei...
07/07/1992
5098546Oxygen-generating electrode
Proposal is made for providing a high-performance electrode suitable for use in an oxygen-generating electrolytic process having an outstandingly low oxygen overvoltage and exhibiting high durability in a prolonged run of electrolysis. The electrode consi...
03/24/1992
5059297Durable electrode for use in electrolysis and process for producing the same
An electrode for use in electrolysis is disclosed, which comprises a metallic substrate having formed on the surfaces thereof, in sequence, an amorphous layer free of grain boundaries, and an active electrode material coating. The electrode shows excellen...
10/22/1991
5035789Electrocatalytic cathodes and methods of preparation
Cathodes useful in an electrolytic cell, such as a chlor-alkali cell, are disclosed which have a metallic-surfaced substrate coated with a catalytic coating composition. In one aspect, the catalytic coating includes a base layer of at least one primary el...
07/30/1991
5017275Electroplating cell anode
The present invention resides in an anode structure as well as in an electrolytic cell utilizing the anode structure. The anode structure comprises a resilient anode sheet having an active anode surface, and a support substructure for the anode sheet. The...
05/21/1991
4936971Massive anode as a mosaic of modular anodes
A massive anode is assembled from many, closely packed modular anodes. Although close-packed, the modular anodes are nevertheless spaced apart one from the other. The massive anode has at least substantial inflexibility. It can be particularly useful wher...
06/26/1990
4913973Platinum-containing multilayer anode coating for low pH, high current density electrochemical process anodes
The present invention is directed to a novel anode suitable for producing high purity, pore-free coper foil at high speed and low cost under severe conditions. The anodes of the present invention are capable withstanding high acid concentrations, current ...
04/03/1990
4849085Anodes for electrolyses
An anode for aqueous electrolyses, consisting of a frame or support and a porous substrate which is connected to the frame and in which electrochemically active substances are dispersed. The substrate consists of titanium which is doped with chromium or n...
07/18/1989
4798662Cathode for electrolysis and a process for the manufacture of the said cathode
A cathode especially useful in the electrolysis of aqueous solutions of alkali metal halides consisting essentially of an electrically conducting substrate and a heterogeneous coating containing a precious metal and/or a precious metal derivative; said he...
01/17/1989
4797182Electrode with a platinum metal catalyst in surface film and its use
An electrode for use in electrolytic processes having a substrate of film-forming metal comprises an electrocatalyst incorporated in an integral surface film of the film-forming metal oxide grown from the substrate. The electrocatalyst incorporated in the...
01/10/1989
4765874Laminated electrode the use thereof
Laminated electrodes and a method for their preparation are described, these electrodes being composed of electrically conductive plastic having catalytic particles, composed of a catalyst deposited on supporting particles, pressed partially into the plas...
08/23/1988
4696731Amorphous metal-based composite oxygen anodes
Improved amorphous metal-based composite oxygen anodes comprise a substrate material, a first coating of an amorphous metal alloy applied thereto and a second coating of a mixed metal oxide applied to the first coating and fused therewith. A method for th...
09/29/1987
4654136Monopolar or bipolar electrochemical terminal unit having a novel electric current transmission element
The invention is an electrochemical terminal unit suitable for use in monopolar or bipolar electrochemical cells comprising: an electric current transmission element in the form of a substantially planar, continuous electrically conductive body having a plural...
03/31/1987
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