Noble Metal (i.e., Ru, Rh, Pd, Os, Ir, Pt, Ag, Or Au) Or Compound Containing Patents (Class 204/290.08)
  • Patent number: 10287188
    Abstract: The invention relates to an electrode suitable for electrolytic treatments of dilute solutions of sodium chloride even at low temperatures. The electrode can be used in the generation of active chlorine-based biocidal agents in ballast water for marine applications. The electrode has a titanium substrate, an inner catalytic coating containing oxides of tantalum, ruthenium and iridium, and an outer catalytic coating containing oxides of titanium, ruthenium and of at least one of nickel, iron and cobalt.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: May 14, 2019
    Assignee: INDUSTRIE DE NORA S.P.A.
    Inventors: Luciano Iacopetti, Alice Calderara
  • Patent number: 9977006
    Abstract: The present invention couples a housing including a gas separation membrane to a sensor unit capable of detecting the concentration of hydrogen gas such that liquid cannot permeate a closed space within the housing and only hydrogen gas dissolved in the liquid can permeate the closed space through the gas separation membrane, and detachably couples such a hydrogen sensor element to an opening of a container in which the liquid is held. Accordingly, the present invention can measure the concentration of dissolved hydrogen gas in a simple manner.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: May 22, 2018
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chong Ook Park, Seong Wan Kim, Dae Ro Lee
  • Patent number: 9890464
    Abstract: A solid electrolyte is formed by blending a coating chemical with metal ions and fatty acid. Filling molds and drying the material in the molds forms the solid electrolyte. The solid electrolyte is mounted on an electrode and attached to a handle. The solid electrolyte is moved over a surface of a substrate with the handle. DC current is passed between the electrode and substrate and ions are transferred to the wetted substrate from the solid electrolyte.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: February 13, 2018
    Assignee: Oceanit Laboratories, Inc.
    Inventors: Ganesh Arumugam, Ashavani Kumar, Vinod Veedu
  • Patent number: 9632060
    Abstract: A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: April 25, 2017
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Rajiv Shah, Robert C. Mucic, Genival D. de Barros, Carlos A. Callirgos, Manjunath Sirigiri, Joseph Paul Brinson
  • Patent number: 9115265
    Abstract: The present invention relates to storage stable film forming latex particles substantially free of adipic acid dihydrazide (ADH) that crosslink under ambient conditions during or after drying. Monomers for the formation of the crosslinkable moieties in the latex particles include diacetone acrylamide (DAAM) or the likes and methacrylamide (MAM) or the likes with or without styrene. A paint composition comprising the storage stable latex particles was described.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: August 25, 2015
    Assignee: Columbia Insurance Company
    Inventors: Shi-Jun Yang, Gary Dandreaux, Robert J. Sheerin
  • Patent number: 9065104
    Abstract: The invention relates to a process for manufacturing at least one elementary electrochemical cell comprising a first and a second electrode between which an electrolyte is intercalated, said first and second electrodes and said electrolyte being in the form of layers, which process is characterized in that it comprises: a) producing at least one structure comprising a layer of a powder of a first electrode material and a layer of a powder of a second electrode material between which a layer of a powder of an electrolyte material is intercalated; and b) simultaneously sintering all the powder layers by an electric field sintering. Applications: manufacture of energy- or hydrogen-producing electrochemical systems, in particular solid oxide fuel cells (SOFCs) or high temperature electrolysers cells (HTEs).
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: June 23, 2015
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Alexandre Allemand, Sophie Beaudet Savignat, Eric Bruneton
  • Patent number: 9059468
    Abstract: A positive electrode current collector for lead-acid batteries contains a current collector substrate of titanium or a titanium alloy, a coating of titanium oxide formed on the surface of the current collector substrate, and a conductive ceramic layer formed on the surface of the coating, and the thickness of the coating is 0.09 ?m or thinner.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: June 16, 2015
    Assignee: GS YUASA INTERNATIONAL
    Inventor: Kohei Fujita
  • Patent number: 8932442
    Abstract: The invention relates to a catalytic coating suitable for oxygen-evolving anodes in electrochemical processes. The catalytic coating comprises an outermost layer with an iridium and tantalum oxide-based composition modified with amounts not higher than 5% by weight of titanium oxide.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: January 13, 2015
    Assignee: Industrie de Nora S.p.A.
    Inventors: Alice Calderara, Antonio Lorenzo Antozzi, Ruben Ornelas Jacobo
  • Publication number: 20140374249
    Abstract: The present invention aims to provide an anode for oxygen generation and a manufacturing method for the same used for industrial electrolyses including manufacturing of electrolytic metal foils such as electrolytic copper foil, aluminum liquid contact and continuously electrogalvanized steel plate, and metal extraction. The present invention features an anode for oxygen generation and a manufacturing method for the same comprising a conductive metal substrate and a catalyst layer containing iridium oxide formed on the conductive metal substrate wherein the coating is baked in a high temperature region of 410° C.-450° C. in an oxidation atmosphere to form the catalyst layer co-existing amorphous and crystalline iridium oxide and the catalyst layer co-existing the amorphous and crystalline iridium oxide is post-baked in a further high temperature region of 520° C.-560° C. in an oxidation atmosphere to crystallize almost all amount of iridium oxide in the catalyst layer.
    Type: Application
    Filed: December 25, 2012
    Publication date: December 25, 2014
    Inventors: Yi Cao, Akihiro Kato, Kazuhiro Hirao, Takashi Furusawa
  • Patent number: 8758476
    Abstract: Provided are a method of producing mixed powder comprising noble metal powder and oxide powder, wherein powder of ammonium chloride salt of noble metal and oxide powder are mixed, the mixed powder is subsequently roasted, and ammonium chloride is desorbed by the roasting process in order to obtain mixed powder comprising noble metal powder and oxide powder, and mixed powder comprising noble metal powder and oxide powder, wherein chlorine is less than 1000 ppm, nitrogen is less than 1000 ppm, 90% or more of the grain size of the noble metal powder is 20 ?m or less, and 90% or more of the grain size of the oxide powder is 12 ?m or less. Redundant processes in the production of noble metal powder are eliminated, and processes are omitted so that the inclusion of chlorine contained in the royal water and nitrogen responsible for hydrazine reduction reaction is eliminated as much as possible.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: June 24, 2014
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Atsutoshi Arakawa, Kazuyuki Satoh, Atsushi Sato
  • Publication number: 20130334037
    Abstract: An electrode for electrolysis includes a conductive substrate, a first layer formed on the conductive substrate, and a second layer formed on the first layer. The first layer contains at least one oxide selected from the group consisting of ruthenium oxide, iridium oxide, and titanium oxide. The second layer contains an alloy of platinum and palladium. The electrode for electrolysis shows low overvoltage and has excellent durability over a long period.
    Type: Application
    Filed: December 14, 2011
    Publication date: December 19, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tsuyoshi Haneda, Kazuyuki Tsuchida, Toshinori Hachiya
  • Publication number: 20130306489
    Abstract: The invention relates to a coating for anodes suitable for oxygen evolution in electrochemical processes, comprising one or more catalytic layers and an external layer. Such external layer having a composition based on tantalum oxides or tin oxides or zirconium oxides in an amount of 2 to 7 g/m2.
    Type: Application
    Filed: January 25, 2012
    Publication date: November 21, 2013
    Applicant: INDUSTRIE DENORA, S.P.A.
    Inventors: Alice Calderara, Fabio Sala, Fabio Timpano
  • Patent number: 8580091
    Abstract: A composition and method of manufacture of electrodes having controlled electrochemical activity to allow the electrodes to be designed for a variety of electro-oxidation processes. The electrodes are comprised of a compact coating deposited onto a conductive substrate, the coating being formed as multiple layers of a mixture of one or more platinum group metal oxides and one or more valve metal oxides. The formation of multiple layers allows the concentrations of platinum group metal and valve metal to be varied for each layer as desired for an application. For example, an electrode structure can be manufactured for use as an anode in electroplating processes, such that the oxidation of the organic additives in the electrolyte is markedly inhibited. Another electrode can be manufactured to operate at high anodic potentials in aqueous electrolytes to generate strong oxidants, e.g., hydrogen peroxide or ozone.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: November 12, 2013
    Assignee: Water Star, Inc.
    Inventors: Marilyn J. Niksa, Andrew J. Niksa
  • Patent number: 8545684
    Abstract: Disclosed herein is a method of making a sensing element comprising forming an electrically conductive element, wherein the sensing element comprises a metal selected from the group consisting of Pd and alloys and combinations comprising Pd; and wherein the electrically conductive element is thermally stable at temperatures as high as 1,200° C.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: October 1, 2013
    Assignee: Delphi Technologies, Inc.
    Inventors: Fenglian Chang, Kerry J. Kruske, Rick D. Kerr
  • Publication number: 20130228470
    Abstract: A process for converts carbon-based gases such as non-polar organic gases and carbon oxides to longer chained organic gases such as liquid hydrocarbons, longer chained gaseous hydrocarbons, branched-chain liquid hydrocarbons, branched-chain gaseous hydrocarbons, as well as chained and branched-chain organic compounds. In general, the method is for chain modification of hydrocarbons and organic compounds, including chain lengthening, and eventual conversion into liquids including, but not limited to, hydrocarbons, alcohols, and other organic compounds.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 5, 2013
    Applicant: Viceroy Chemical
    Inventor: Ed Ite Chen
  • Publication number: 20130180852
    Abstract: A working electrode includes a conducting layer, a carbon nanotube layer electrophoretically deposited on the conducting layer; and a gold nanoparticle layer sputter-deposited on the carbon nanotube layer. A sensor chip having the working electrode and a method of fabricating the working electrode are also disclosed.
    Type: Application
    Filed: September 14, 2012
    Publication date: July 18, 2013
    Inventors: Chien-Chong Hong, Hong-Ren Jian, Kuo-Ti Peng, I-Ming Chu
  • Publication number: 20130180861
    Abstract: A Ti02-based photocatalyst is fabricated as a composite of titania with adhered nanostructures which contain a non-noble metal in galvanic contact with a noble metal. The catalyst effectively overcome aging and/or deactivation effects observed in a system free of the non-noble metal. The composite material showed a corrosion protective effect on the photoactivity of fresh catalyst for over 180-240 days, and it enhanced the rate of the water reduction reaction relative to bare Ti02. Variations in porosity and non-noble metal content of the alloy portion of the nanostructures influenced the performance of the catalyst composite. The protective effect of the non-noble metal is through a cathodic corrosion protection mechanism.
    Type: Application
    Filed: September 16, 2011
    Publication date: July 18, 2013
    Applicant: NORTHEASTERN UNIVERSITY
    Inventors: Elizabeth J. Podlaha-Murphy, Savidra Lucatero
  • Publication number: 20130153411
    Abstract: The negative electrode for aqueous solution electrolysis of the present invention includes a conductive substrate having a nickel surface, a mixture layer including metal nickel, a nickel oxide and carbon atoms, formed on the conductive substrate surface, and an electrode catalyst layer formed on the mixture layer surface, wherein the electrode catalyst layer is formed by a layer including a platinum group metal or a platinum group metal compound. The negative electrode for aqueous solution electrolysis of the present invention is preferably used in electrolysis of an aqueous solution of an alkali metal halide, and the like.
    Type: Application
    Filed: February 17, 2011
    Publication date: June 20, 2013
    Applicant: CHLORINE ENGJNEERS CORP., LTD.
    Inventor: Sanae Ishimaru
  • Publication number: 20120241314
    Abstract: Provided are an electrolytic cathode structure that can suppress the degradation of an activated cathode even if a reverse current flows upon the stoppage of operation of an electrolyzer in an electrode structure allowing the distance between the electrode and an electrode current collector to be maintained at an approximately constant value, and an electrolyzer using the same. The electrolytic cathode structure includes a metal elastic cushion member 1 compressed and accommodated between an activated cathode 2 and a cathode current collector 3. At least a surface layer of the cathode current collector 3 consumes a larger oxidation current per unit area than the activated cathode. The electrolyzer is partitioned by an ion exchange membrane into an anode chamber for accommodating an anode and a cathode chamber for accommodating a cathode. The electrolytic cathode structure is used for the cathode.
    Type: Application
    Filed: January 5, 2011
    Publication date: September 27, 2012
    Inventors: Akihiro Madono, Mitsumasa Okamoto
  • Publication number: 20120061237
    Abstract: The invention relates to a cathode for electrolytic processes with evolution of hydrogen comprising a metal substrate with a noble metal-based activation layer and two protective layers, one interposed between the activation layer and the substrate and one external, containing an electroless-depositable alloy of a metal comprising one of nickel, cobalt and iron with a non-metal selected from phosphorus and boron, with the optional addition of a transition element selected between tungsten and rhenium.
    Type: Application
    Filed: November 17, 2011
    Publication date: March 15, 2012
    Applicant: Industrie De Nora S.p.A.
    Inventors: Marianna Brichese, Antonio Lorenzo Antozzi, Alice Calderara
  • Publication number: 20120052402
    Abstract: The present invention relates to a multilayer oxygen-consuming electrode having a side facing the oxygen-containing gas and a side facing the alkaline electrolyte, wherein the electrode includes at least one support, and at least two layers comprising a catalyst and a hydrophobic material, wherein the outermost layer facing the gas side has a lower proportion of catalyst than the outermost layer facing the electrolyte side and wherein the proportion of hydrophobic material is not more than 8% by weight based on the total amount of the catalyst and the hydrophobic material.
    Type: Application
    Filed: June 13, 2011
    Publication date: March 1, 2012
    Applicant: Bayer MaterialScience AG
    Inventors: Thomas Turek, Imad Moussallem, Andreas Bulan, Norbert Schmitz, Peter Weuta
  • Patent number: 8070924
    Abstract: The present invention provides an electrode for generation of hydrogen comprising: a conductive substrate; a catalytic layer formed on the conductive substrate and containing at least one platinum group metal selected from the group consisting of Pt, Ir, Ru, Pd and Rh; and a hydrogen adsorption layer formed on the catalytic layer. The present invention also provides an electrode for generation of hydrogen comprising: a conductive substrate, a catalytic layer formed on the conductive substrate and containing: at least one platinum group metal selected from the group consisting of Pt, Ir, Ru, Pd and Rh and/or at least one oxide of said platinum group metals; and at least one metal selected from the group consisting of lanthanum series metals, valve metals, iron series metals and silver and/or at least one oxide of said metals; and a hydrogen adsorption layer formed on the catalytic layer.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: December 6, 2011
    Assignee: Permelec Electrode Ltd.
    Inventors: Takeo Ohsaka, Shunsuke Sata, Miwako Nara, Yoshinori Nishiki
  • Publication number: 20110139636
    Abstract: This disclosure describes a gold-plated screen-printed electrode for use as an electrochemical sensor.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 16, 2011
    Inventors: Rebecca Y. Lai, Weiwei Yang
  • Publication number: 20110127167
    Abstract: The invention relates to a method of making a nanotubular titania substrate having a titanium dioxide surface comprised of a plurality of vertically oriented titanium dioxide nanotubes containing oxygen vacancies. The method generally comprises the steps of anodizing a titanium metal substrate in an acidified fluoride electrolyte under conditions sufficient to form a titanium oxide surface comprised of self-ordered titanium oxide nanotubes, dispersing gold nanoparticles onto the titanium oxide surface, annealing the titanium oxide surface with the gold nanoparticles thereon in a non-oxidizing atmosphere, and depositing carbon onto the annealed titanium oxide surface. The invention also relates to a hybrid gold/carbon electrode formed by the method.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 2, 2011
    Applicant: UNIVERSITY OF NEVADA, RENO
    Inventors: Manoranjan Misra, Krishnan Selva Raja, Susanta Kumar Mohapatra, Vishal K. Mahajan
  • Patent number: 7914664
    Abstract: Electrodes comprising ruthenium oxide nanoparticles are disclosed. The ruthenium oxide nanoparticles are located within the electrode or as a coating thereon. The electrode is especially suited for measuring the presence and/or concentration of nitric oxide in a sample.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: March 29, 2011
    Assignee: Cleveland State University
    Inventors: Mekki Bayachou, Pubudu Peiris
  • Patent number: 7914653
    Abstract: 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 group element oxides so as to decrease the cost and to mitigate the problem of natural resources, and further, durability of the anode is improved. The electrocatalyst of the anode is multiple oxide of platinum group element(s), and Sn and Sb. The cationic ratio of Sn to Sb is 1-40 and the sum of Sn and Sb is 1-90 cationic %. The electrocatalyst is prepared by coating mixed solutions of the soluble salts on the substrate and baking, so as to convert the metal salts to metal oxides.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 29, 2011
    Assignees: Koji Hashimoto, Daiki Ataka Engineering Co., Ltd.
    Inventors: Koji Hashimoto, Ahmed Abd El-Moneim, Naokazu Kumagai
  • Patent number: 7811425
    Abstract: An anode for electrowinning aluminium comprises an electrically conductive substrate that is covered with an applied electrochemically active coating comprising a layer that contains predominantly cobalt oxide CoO. The CoO layer can be connected to the substrate through an oxygen barrier layer, in particular containing copper, nickel, tungsten, molybdenum, tantalum and/or niobium.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: October 12, 2010
    Assignee: Moltech Invent S.A.
    Inventors: Vittorio De Nora, Thinh T. Nguyen
  • Patent number: 7811426
    Abstract: Disclosed is an oxygen evolution anode for evolving oxygen without chlorine evolution in electrolysis of aqueous solutions of sodium chloride having high performance and durability with decreased amount of the precious metal(s) in the intermediate layer to decrease manufacturing cost and to ease problem of the resources. The oxygen evolution anode comprises an electroconductive substrate, an intermediate layer and an electrocatalyst. The intermediate layer prepared by calcination consists of multiple oxide of the platinum group element(s), Sn and Sb, with the Sn/Sb ratio of 1-40 and with the sum of Sn and Sb of 90 cationic % or less. The electrocatalyst is prepared by anodic deposition and consists of 0.1-3 cationic % of Sn, 0.2-20 cationic % of Mo and/or W and the balance of Mn.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: October 12, 2010
    Assignees: Daiki Ataka Engineering Co., Ltd.
    Inventors: Koji Hashimoto, Ahmed Abd El-Moneim, Naokazu Kumagai
  • Publication number: 20100252441
    Abstract: Embodiments of the present disclosure include an anode, devices and systems including the anode (e.g., electrochemical devices and photo-electrochemical devices), methods of using the anode, methods of producing H2 and O2 from H2O, Cl2, oxidixed organic feedstocks, oxidation for the detection and quantification of chemical species, and the like.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Inventors: Christopher Elisha Dunn Chidsey, Paul C. McIntyre
  • Patent number: 7803260
    Abstract: Disclosed is an oxygen evolution electrode for formation of only oxygen without formation of chlorine at anode in the performance and the durability of the anode is so high that they are, even in strong acid, at the same level as that in neutral solution. The electrode is prepared by anodic deposition of multiple oxide consisting of Mn—Mo—Sn, Mo—W—Sn or Mn—Mo—W—Sn on an IrO2-coated titanium substrate. The multiple oxide are composed of Mn as the main component, 0.1-3 cationic % of Sn and 0.2-20 cationic % of Mo and/or W.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: September 28, 2010
    Assignees: Daiki Ataka Engineering Co., Ltd., Koji Hashimoto
    Inventors: Koji Hashimoto, Ahmed Abd El-Moneim, Naokazu Kumagai
  • Publication number: 20090314653
    Abstract: Disclosed herein is a highly-durable electrode tool for electrochemical machining, which can prevent the corrosion and abrasion of a conductive pattern at the time of electrochemical machining for forming dynamic pressure-generating grooves of a fluid dynamic bearing, and a method of manufacturing the same. The electrode tool for electrochemical machining includes: an electrode substrate on which a conductive pattern is formed to have protrusions corresponding to the fine grooves and to which negative current is applied; a nonconductive insulating layer, covering an entire top surface of the electrode substrate excluding the conductive pattern; and a conductive layer, which is formed on the conductive pattern to protect the conductive pattern, and a top surface of which is the same height as a top surface of the nonconductive insulating layer.
    Type: Application
    Filed: October 15, 2008
    Publication date: December 24, 2009
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young Tae Kim, Young Hwan Lim, Il Oung Park, Won Seok Choi, Jong Yun Kim
  • Publication number: 20090194410
    Abstract: The present invention refers to an electrode comprising a first metallic layer and a compound comprising at least one of a nitride, oxide, and oxynitride of a second metallic material.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 6, 2009
    Inventors: Uwe Schroeder, Stefan Jakschik, Johannes Heitmann, Tim Boescke, Annette Saender
  • Publication number: 20090092887
    Abstract: An electrode comprising a primary and secondary metal nanoparticle coating on a metallic substrate is prepared by dispersing nanoparticles in a solvent and layering them onto the substrate, followed by heating. The enhanced surface area of the electrode due to the catalytic nanoparticles is dramatically enhanced, allowing for increased reaction efficiency. The electrode can be used in one of many different applications; for example, as an electrode in an electrolysis device to generate hydrogen and oxygen, or a fuel cell.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 9, 2009
    Applicant: QuantumSphere, Inc.
    Inventors: Kimberly McGrath, Robert Dopp, R. Douglas Carpenter
  • Publication number: 20080230380
    Abstract: The present invention provides an electrode for generation of hydrogen comprising: a conductive substrate; a catalytic layer formed on the conductive substrate and containing at least one platinum group metal selected from the group consisting of Pt, Ir, Ru, Pd and Rh; and a hydrogen adsorption layer formed on the catalytic layer. The present invention also provides an electrode for generation of hydrogen comprising: a conductive substrate, a catalytic layer formed on the conductive substrate and containing: at least one platinum group metal selected from the group consisting of Pt, Ir, Ru, Pd and Rh and/or at least one oxide of said platinum group metals; and at least one metal selected from the group consisting of lanthanum series metals, valve metals, iron series metals and silver and/or at least one oxide of said metals; and a hydrogen adsorption layer formed on the catalytic layer.
    Type: Application
    Filed: March 24, 2008
    Publication date: September 25, 2008
    Applicant: PERMELEC ELECTRODE LTD
    Inventors: Takeo OHSAKA, Shunsuke SATA, Miwako NARA, Yoshinori NISHIKI
  • Publication number: 20080223734
    Abstract: Electrodes comprising ruthenium oxide nanoparticles are disclosed. The ruthenium oxide nanoparticles are located within the electrode or as a coating thereon. The electrode is especially suited for measuring the presence and/or concentration of nitric oxide in a sample.
    Type: Application
    Filed: October 23, 2007
    Publication date: September 18, 2008
    Applicant: CLEVELAND STATE UNIVERSITY
    Inventors: Mekki Bayachou, Pubudu Peiris
  • Patent number: 7374647
    Abstract: 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 0.050 mm, and formed by spraying, especially with a vacuum plasma spray technique.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: May 20, 2008
    Assignee: ORO AS
    Inventors: Atle Mundheim, Lasse Kroknes
  • Publication number: 20080067061
    Abstract: The invention relates to membrane-electrode assemblies for the electrolysis of water (electrolysis MEAs), which contain an ion-conducting membrane having a front and rear side; a first catalyst layer on the front side; a first gas diffusion layer on the front side; a second catalyst layer on the rear side, and a second gas diffusion layer on the rear side. The first gas diffusion layer has smaller planar dimensions than the ion-conducting membrane, whereas the second gas diffusion layer has essentially the same planar dimensions as the ion-conducting membrane (“semi-coextensive design”). The MEAs also comprise an unsupported free membrane surface that yields improved adhesion properties of the sealing material. The invention also relates to a method for producing the MEA products. Pressure-resistant, gastight and cost-effective membrane-electrode assemblies are obtained, that are used in PEM water electrolyzers, regenerative fuel cells or in other electrochemical devices.
    Type: Application
    Filed: July 14, 2004
    Publication date: March 20, 2008
    Applicant: UMICORE AG & CO. KG
    Inventors: Ralf Zuber, Sandra Wittpahl, Klaus Schaack, Holger Dziallas, Peter Seipel, Pia Braun, Lutz Rohland
  • Patent number: 7244887
    Abstract: Preferred electrode devices (10) including a substrate (11) and cathode (13) and anode material (12) coated thereon in discreet locations are described. The cathode materials desirably include multiple layers of thin metal films (14). Preferred cell devices including conductive elements and a solid state source of charged ions for migration into and through the conductive elements are also described.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: July 17, 2007
    Assignee: Lattice Energy LLC
    Inventor: George H. Miley
  • Patent number: 7211177
    Abstract: 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 coating, wherein the interlayer consists of titanium carbide and/or titanium boride and is applied to the support by flame or plasma spraying. Process for producing these electrodes and their use in an electrochemical cell for producing chlorine or chromic acid.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: May 1, 2007
    Assignees: Bayer Aktiengesellschaft, DeNora Elettrodi S.p.A.
    Inventors: Fritz Gestermann, Hans-Dieter Pinter, Gerd Speer, Peter Fabian, Robert Scannel
  • Publication number: 20040108205
    Abstract: 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 include an embrittlement-sensitive material and a protective oxygen-free copper layer, and which include at least one thin metal layer including a bamboo grain pattern. Additional embodiments of the invention include electric cells incorporating such electrode structures, and methods for their operation.
    Type: Application
    Filed: March 26, 2002
    Publication date: June 10, 2004
    Inventor: Lewis G. Larsen
  • Publication number: 20040000371
    Abstract: A method of making a set of metallic deposits includes injection molding a substrate, where a pattern of channels is in a surface of the substrate, applying a metallic layer on the surface, to form metallic deposits in the pattern, and removing a portion of the metallic layer, to expose a portion of the surface. The set of metallic deposits can form an electrode set for an electrochemical sensor strip.
    Type: Application
    Filed: December 2, 2002
    Publication date: January 1, 2004
    Inventors: Raghbir S. Bhullar, Joseph C. Fjelstad
  • Publication number: 20030159922
    Abstract: Preferred electrode devices (10) including a substrate (11) and cathode (13) and anode material (12) coated thereon in discreet locations are described. The cathode materials desirably include multiple layers of thin metal films (14). Preferred cell devices including conductive elements and a solid state source of charged ions for migration into and through the conductive elements are also described.
    Type: Application
    Filed: November 25, 2002
    Publication date: August 28, 2003
    Inventor: George H. Miley
  • Publication number: 20030146105
    Abstract: An electrolytic process of ozone generation using platinum-coated titanium grid as cathode, &bgr;-PbO2 deposited on the grid as anode, and batteries in conjunction with supercapacitors as a DC power source is described. No membrane is required to separate the electrodes, and a neutral salt such as NaCl is used to enhance the generation of ozone gas. The electrolytic apparatus comprising a cell, the electrodes, and a bubbler can also be inserted directly in water that needs ozone treatment. As batteries can power the ozone generation, the apparatus can be disposed at point-of-use and away from the city electricity. The electrolytic apparatus can be used for sterilization of water for pharmaceutical industry, household water supply, for surface cleaning of semiconductors, meats, fish, fruits, as well as for disinfection of SPA water and personal hygiene.
    Type: Application
    Filed: February 6, 2002
    Publication date: August 7, 2003
    Inventors: Lin-Ren Shiue, Chia-Chann Shiue, Hsing-Chen Chung, Fei-Chen Hsieh, Yu-His Hsieh, Jiung-Jau Jou
  • Patent number: 6599404
    Abstract: 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 electrode materials to facilitate reaction rates, energy production, and/or to shift the average mass number of transmuted products to lighter or heavier values. Preferred electrodes (11) have a plurality of thin-film conductive layers (14) supported on generally concave surfaces (13).
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: July 29, 2003
    Inventor: George H. Miley
  • Patent number: 6572758
    Abstract: 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 stability enhancer, antimony oxide as an oxygen suppressant and a titanium oxide binder. The electrocatalytic coating is about 21 mole percent ruthenium oxide, about 2 mole percent iridium oxide, about 4 mole percent antimony oxide and the balance is titanium oxide. The coating is characterized by high durability and low oxygen content in an off-gas.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: June 3, 2003
    Assignee: United States Filter Corporation
    Inventors: Vadim Zolotarsky, Irina A. Ivanter, Mark J. Geusic
  • Publication number: 20030010649
    Abstract: An anode structure suitable for an electrochemical process is disclosed. The anode comprises a primary anode structure, also referred to as an anode frame, and a secondary metal substrate attached to the anode frame. The anode frame is a structural support and suitable electrical conductor. The metal substrate has an electrocatalytic coating and provides the anode with an anodic surface. The metal substrate is easily removable from the anode frame. Also disclosed is a method for refurbishing anodes according to the present invention. An anode comprising an anode frame and a metal substrate is refurbished by removing a depleted metal substrate from the frame and attaching a separate precoated metal substrate to the frame. The method of refurbishing optionally includes refurbishing the depleted metal substrate and using the refurbished substrate to refurbish the anode structure. A method for providing replacement anodes is also disclosed.
    Type: Application
    Filed: July 16, 2001
    Publication date: January 16, 2003
    Inventors: Michael D. Waite, E. Michael Horonzy
  • Patent number: 6379526
    Abstract: 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 coating adherent to the metal substrate making the surface of the anode electrochemically active for the oxidation of oxygen ions present at the electrolyte interface. The substrate metal may be selected from nickel, cobalt, chromium, molybdenum, tantalum and the Lanthanide series. The active constituents of the coating are for example oxides such as spinels or perovskites, oxyfluorides, phosphides or carbides, in particular ferrites. The active constituents may be coated onto the substrate from a slurry or suspension containing colloidal material and the electrochemically active material.
    Type: Grant
    Filed: July 15, 2000
    Date of Patent: April 30, 2002
    Assignee: Moltech Invent SA
    Inventors: Vittorio de Nora, Jean-Jacques Duruz
  • Publication number: 20010042682
    Abstract: 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 first, using a solution of the corresponding chloride salts in hydrochloric acid with some nitric acid added to inhibit corrosion of the metal. A sealing coat is then applied, comprising tin dioxide doped with antimony, in order to improve adhesion of the final oxide coat to the precoat. The third and final coat comprises particles of titanium dioxide doped with niobium in the +4 oxidation cemented with titanium dioxide that is doped with antimony. Anodes of this description are preferably assembled together with corrosion resistant cathodes in an alternating sequence, with a plastic coated fiber glass mesh placed between the anodes and cathodes to prevent short circuiting.
    Type: Application
    Filed: May 14, 2001
    Publication date: November 22, 2001
    Inventors: Oleh Weres, Henry Edward O'Donnell
  • Publication number: 20010022275
    Abstract: The invention relates to a construction for ventilation of hydrogen gas comprising at least a first metallic layer (1), sensitive to hydrogen embrittlement, a second (2) metallic layer, and a mesh (4), wherein the first layer (1) is joined to the second layer (2), and said mesh (4), forming venting channels (5) through which channels (5) hydrogen can be vented, is joined to, and in between, said first (1) and second (2) metallic layers. The invention further concerns a method for production thereof.
    Type: Application
    Filed: December 21, 2000
    Publication date: September 20, 2001
    Inventors: Bo Hakansson, Eduardo Fontes, Magnus Davidsson, Hans-Goran Sundstrom, Lars Blomgren, Arne Carlsson
  • Patent number: 6251254
    Abstract: 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 porous can comprise an oxide containing at least one element selected from the group consisting of silicon, molybdenum, titanium, tantalum, zirconium, and tungsten. Use of this electrode for chromium plating reduces the oxidation of trivalent chromium into hexavalent chromium.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: June 26, 2001
    Assignee: Permelec Electrode Ltd.
    Inventors: Masaaki Katoh, Miwako Nara, Yukiei Matsumoto, Setsuro Ogata