Plural Metal Oxides Containing Patents (Class 204/290.09)
  • Patent number: 10975481
    Abstract: A cathode catalyst used for conversion of a carbon dioxide gas by an electrochemical reduction includes at least one first catalyst layer and at least one second catalyst layer disposed on a surface of the at least one first catalyst layer. The at least one second catalyst layer is a porous structure. The at least one first catalyst layer and the at least one second catalyst layer are physically combined with each other, and materials of the at least one first catalyst layer and the at least one second catalyst layer are different. A cathode material and a reactor include the cathode catalyst are also provided.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: April 13, 2021
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jian-Wei Guo, Chen-Chen Zhao, Xiang-Ming He, Li Wang, Jian-Jun Li, Jian Gao
  • Patent number: 10954546
    Abstract: The present invention relates to methods and apparatus for detecting one or more pathogens in one or more biological samples. The biological sample may be a food sample, a sample of a body fluid, a cell suspension, water, or a combination thereof. The present invention relates also to methods of diagnosing or predicting a disease in an individual.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: March 23, 2021
    Assignee: AIT Austrian Institute of Technology GmbH
    Inventors: Klemens Wassermann, Johannes Peham, Herbert Wiesinger-Mayr, Christa Nöhammer
  • Patent number: 10731266
    Abstract: The present disclosure provides a composite anode unit, comprising: a metal core rod; a metal layer coated on the metal core, wherein the metal layer is lead or lead alloy; a conductive ceramic layer coated on the metal layer, wherein the conductive ceramic layer comprises ?-PbO2—Al2O3 composite oxide; an active ceramic layer is coated on the conductive ceramic layer, wherein the active ceramic layer comprises ?-MnO2—Ti4O7 composite oxide. Methods for preparing the composite anode unit and an anode plate made from the composite anode unit are also provided.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: August 4, 2020
    Assignees: KUNMING HENDERA SCIENCE AND TECHNOLOGY CO., LTD., KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY, JINNING HENDERA SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Zhongcheng Guo, Hui Huang, Buming Chen, Xuelong Li, Panlong Zhu, Jin Dong, Mingxi Pan, Feng Huang, Taixiang Huang, Ning Tan, Chutao Huang
  • Patent number: 10400340
    Abstract: A cathode catalyst used for conversion of a carbon dioxide gas by an electrochemical reduction includes at least one first catalyst layer and at least one second catalyst layer disposed on a surface of the at least one first catalyst layer. The at least one second catalyst layer is a porous structure. The at least one first catalyst layer and the at least one second catalyst layer are physically combined with each other, and materials of the at least one first catalyst layer and the at least one second catalyst layer are different. A cathode material and a reactor include the cathode catalyst are also provided.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 3, 2019
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Jian-Wei Guo, Chen-Chen Zhao, Xiang-Ming He, Li Wang, Jian-Jun Li, Jian Gao
  • Patent number: 9233356
    Abstract: An exhaust gas purification catalyst including a catalyst support and bimetallic particles supported thereon, wherein said bimetallic particles include an at least partial solid solution of rhodium and iridium and have a diffraction peak at 40.66°<2?<41.07° in X-ray diffraction with a CuK? ray. A method for producing an exhaust gas purification catalyst, includes heating a mixed solution containing a rhodium salt, an iridium salt and a reducing agent at a temperature sufficient to reduce rhodium and iridium, thereby producing bimetallic particles including an at least partial solid solution of rhodium and iridium; and supporting the produced bimetallic particles on a catalyst support.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 12, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Nagao, Naotaka Sawada, Yusaku Inatomi
  • 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: 20140231249
    Abstract: Provided is a chlorine evolution anode in which a main reaction of the anode is chlorine evolution, and the chlorine evolution anode which is low in potential of the anode for chlorine evolution, thereby being able to decrease an electrolytic voltage and lower an electric energy consumption rate. The chlorine evolution anode of the present invention is a chlorine evolution anode in which chlorine evolution from an aqueous solution is a main reaction of the anode and also in which a catalytic layer containing amorphous ruthenium oxide and amorphous tantalum oxide is formed on a conductive substrate.
    Type: Application
    Filed: August 31, 2012
    Publication date: August 21, 2014
    Applicant: THE DOSHISHA
    Inventor: Masatsugu Morimitsu
  • 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: 20140054180
    Abstract: Provided is an anode for electrowinning in a sulfuric acid based electrolytic solution. The anode produces oxygen at a lower potential than a lead electrode, lead alloy electrode, and coated titanium electrode, thereby enabling electrowinning to be performed at a reduced electrolytic voltage and the electric power consumption rate of a desired metal to be reduced. The anode is also available as an anode for electrowinning various types of metals in volume with efficiency. The anode is employed for electrowinning in a sulfuric acid based electrolytic solution and adopted such that a catalyst layer containing amorphous ruthenium oxide and amorphous tantalum oxide is formed on a conductive substrate.
    Type: Application
    Filed: March 23, 2012
    Publication date: February 27, 2014
    Applicant: The Doshisha
    Inventor: Masatsugu Morimitsu
  • 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
  • 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: 8263290
    Abstract: The invention is directed to iridium oxide based catalysts for use as anode catalysts in PEM water electrolysis. The claimed composite catalyst materials comprise iridium oxide (IrO2) and optionally ruthenium oxide (RuO2) in combination with a high surface area inorganic oxide (for example TiO2, Al2O3, ZrO2 and mixtures thereof). The inorganic oxide has a BET surface area in the range of 50 to 400 m2/g, a water solubility of lower than 0.15 g/l and is present in a quantity of less than 20 wt. % based on the total weight of the catalyst. The claimed catalyst materials are characterized by a low oxygen overvoltage and long lifetime in water electrolysis. The catalysts are used in electrodes, catalyst-coated membranes and membrane-electrode-assemblies for PEM electrolyzers as well as in regenerative fuel cells (RFC), sensors, and other electrochemical devices.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: September 11, 2012
    Assignee: Umicore AG & Co. KG
    Inventors: Marco Lopez, Andreas Schleunung, Peter Biberbach
  • Publication number: 20120125785
    Abstract: The invention relates to an electrode for electrolytic applications, optionally an oxygen-evolving anode, obtained on a titanium substrate and having a highly compact dual barrier layer comprising titanium and tantalum oxides and a catalytic layer. A method for forming the dual barrier layer comprises the thermal decomposition of a precursor solution applied to the substrate optionally followed by a quenching step and a lengthy thermal treatment at elevated temperature.
    Type: Application
    Filed: January 26, 2012
    Publication date: May 24, 2012
    Applicant: Industrie De Nora S.p.A.
    Inventors: Andrea Francesco Gullá, Sobha Abraham
  • Patent number: 7976989
    Abstract: The invention is directed to iridium oxide based catalysts for use as anode catalysts in PEM water electrolysis. The claimed composite catalyst materials comprise iridium oxide (IrO2) and optionally ruthenium oxide (RuO2) in combination with a high surface area inorganic oxide (for example TiO2, Al2O3, ZrO2 and mixtures thereof). The inorganic oxide has a BET surface area in the range of 50 to 400 m2/g, a water solubility of lower than 0.15 g/l and is present in a quantity of less than 20 wt. % based on the total weight of the catalyst. The claimed catalyst materials are characterised by a low oxygen overvoltage and long lifetime in water electrolysis. The catalysts are used in electrodes, catalyst-coated membranes and membrane-electrode-assemblies for PEM electrolyzers as well as in regenerative fuel cells (RFC), sensors, and other electrochemical devices.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: July 12, 2011
    Assignee: Umicore AG & Co. KG
    Inventors: Marco Lopez, Andreas Schleunung, Peter Biberbach
  • 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
  • Publication number: 20110011749
    Abstract: A process for separation of a target ion from a fluid mixture containing the ion as well as a fluid non-ionic component includes flowing a mixture of the fluid and the ion through a separation zone containing positive and negative plates. The positive plate has a surface layer of negative polarity and the negative plate has a surface layer of positive polarity. An electrical potential is applied across the plates using a selected voltage. The mixture flows along at least one of the positive and negative plates such that target ions are attracted to the plate of opposite charge caused by the electrical potential. At the selected voltage, the surface layers of the positive plate and negative plates having the same polarity as an attracted positive or negative ion has surface groups that repel the attracted ions as they flow past the plate surface.
    Type: Application
    Filed: July 20, 2009
    Publication date: January 20, 2011
    Inventor: Christian Gollmann
  • 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
  • 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: 20090200162
    Abstract: The invention relates to an anode comprising a titanium alloy substrate coated with noble metals by thermal decomposition of precursors thereof. The alloy of the substrate includes elements which can be oxidised during the thermal decomposition step, allowing electrical energy savings and a prolonged duration in industrial electrolytic processes. The anode of the invention is suitable for chlor-alkali electrolysis, allowing to produce chlorine with a lower oxygen content and a lower energy consumption than the anodes of the prior art.
    Type: Application
    Filed: April 16, 2009
    Publication date: August 13, 2009
    Applicant: Industrie De Nora S.p.A.
    Inventors: Giuseppe Faita, Fulvio Federico
  • 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
  • Patent number: 7452450
    Abstract: An anode for the electrolysis of aluminium made from an outer dense layer of a ceramic material on a dense core made from a composite of the ceramic material of the outer layer and an electronic conductor.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: November 18, 2008
    Assignee: Norsk Hydro ASA
    Inventors: Stein Julsrud, Turid Risdal
  • 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
  • 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
  • Patent number: 6802948
    Abstract: 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.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: October 12, 2004
    Assignee: Eltech Systems Corporation
    Inventors: Kenneth L. Hardee, Lynne M. Ernes, Carl W. Brown, Jr.
  • Publication number: 20030136669
    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: Application
    Filed: December 31, 2002
    Publication date: July 24, 2003
    Inventors: Fritz Gestermann, Hans-Dieter Pinter, Gerd Speer, Peter Fabian, Robert Scannell
  • 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
  • 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
  • Patent number: 6365018
    Abstract: 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 start up of the electrolysis. The coating is obtainable from one or more layers applied from: a liquid solution, a dispersion or suspension in a liquid or a paste, a pasty or non-pasty slurry, and combinations thereof with or without one or more further applied layers, with or without heat treatment between two consecutively applied layers when at least two layers are applied.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: April 2, 2002
    Assignee: Moltech Invent S.A.
    Inventor: Vittorio de Nora
  • 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
  • Patent number: 6217729
    Abstract: 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 one embodiment of the invention, the anode is comprised of a titanium substrate which is roughened and heat treated and subsequently coated with a first coating of iridium oxide/tantalum oxide. After the anode is heat treated, it is next coated, preferably by an electrodeposition process with a second coating of platinum. Finally, the anode is coated with a third coating of iridium oxide/tantalum oxide and subsequently heat treated.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: April 17, 2001
    Assignee: United States Filter Corporation
    Inventors: Vadim Zolotarsky, David B. Blum, Mark J. Geusic, Irina Ivanter