Patents Examined by Cam N. Nguyen
  • Patent number: 11925922
    Abstract: The present invention relates to a method of improving the corrosion resistance of a metal substrate surface using an oxygen reduction catalyst, which may improve the corrosion resistance of the metal substrate surface by coating the metal substrate surface with the oxygen reduction catalyst so that the metal substrate surface is changed to a passive state through the action of the oxygen reduction catalyst in an environment in which a stable oxide layer is not spontaneously formed on the metal substrate surface. The present invention has an advantage in that it can dramatically improve the corrosion resistance of the metal substrate under a corrosive environment by allowing a recoverable oxide layer to be formed on the metal substrate surface through the action of the oxygen reduction catalyst, applied to the surface, even in an environment in which an oxide layer is not spontaneously formed on the metal substrate.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: March 12, 2024
    Assignee: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Yong-Tae Kim, Jaeik Kwak, Hyoung Seop Kim, Sujung Son, Sang-Mun Jung
  • Patent number: 11913367
    Abstract: There is provided an exhaust gas purifying catalyst including a substrate and catalyst portions. The substrate includes an inflow-side cells, outflow-side cells, and porous partition walls, each partition wall separating the inflow-side cell from the outflow-side cell. The catalyst portion includes: (group A) first catalyst portions, each first catalyst portion being provided on a surface of the partition wall that faces the inflow-side cell on an upstream side in an exhaust gas flow direction; and (group B) second catalyst portions being provided on a surface of the partition wall that faces the outflow-side cell on a downstream side in the exhaust gas flow direction. Each catalyst portion of one of group A and group B includes at least one oxidizing catalyst layer and at least one reducing catalyst layer, and each catalyst portion of the other of group A and group B includes at least one oxidizing catalyst layer and/or at least one reducing catalyst layer.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: February 27, 2024
    Assignees: Mitsui Mining & Smelting Co., Ltd., HONDA MOTOR CO., LTD.
    Inventors: Hiroki Kurihara, Yusuke Nagai, Shingo Akita, Yoshinori Endo, Takeshi Mori, Takayuki Watanabe, Tomoko Tsuyama
  • Patent number: 11890609
    Abstract: Honeycomb bodies and methods for treating a honeycomb bodies that include a skin surrounding a matrix of cells, the skin and the matrix of cells comprising a porous inorganic material. Methods include applying a buffer solution to only the porous inorganic material of the skin and coating the porous inorganic material of the skin with an oxide slurry. The oxide slurry includes an oxide or a precursor of the oxide configured to increase the isostatic strength of the honeycomb body. After treatment, the honeycomb body may be dried.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: February 6, 2024
    Assignee: Corning Incorporated
    Inventors: Jacob George, Mallanagouda Dyamanagouda Patil, Elizabeth Margaret Wheeler
  • Patent number: 11890607
    Abstract: Methods for limiting bleed-through of aqueous catalyst solutions in ceramic articles are described herein. The methods include applying a hydrophobic cellulose derivative, such as ethylcellulose, to an exterior surface of a fired porous ceramic article. The aqueous catalyst solution is applied to the fired porous ceramic article, such that the hydrophobic cellulose derivative limits bleed-through of the aqueous catalyst solution through at least a portion of the ceramic article. Ceramic articles with skins that limit bleed-through of aqueous catalyst solutions are also described herein.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 6, 2024
    Assignee: Corning Incorporated
    Inventors: Mickaël Berrebi, David Henry
  • Patent number: 11883797
    Abstract: An exhaust gas purification catalyst device having a substrate, a first catalyst coating layer on the substrate, and a second catalyst coating layer on the first catalyst coating layer. The first catalyst coating layer includes inorganic oxide particles, palladium carried on the inorganic oxide particles, and a barium compound. The second catalyst coating layer includes alumina particles and rhodium carried by the alumina particles. The ratio (MBa/MRh) between the mass (MBa) of barium in the first catalyst coating layer and the mass (MRh) of rhodium in the second catalyst coating layer is 5.0-60.0 inclusive.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: January 30, 2024
    Assignee: CATALER CORPORATION
    Inventors: Tatsuya Ohashi, Kohei Takasaki
  • Patent number: 11878287
    Abstract: This invention relates to development of novel Cu-based nanocatalysts synthesized via one-pot solution combustion synthesis for CO2 hydrogenation to methanol. The novel Cu-based catalyst has exceptional activity for CO2 hydrogenation with high methanol selectivity in the reaction temperature range between 250° C.-350° C. The novel catalyst also exhibits excellent resilience to deactivation due to sintering.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: January 23, 2024
    Assignee: QATAR UNIVERSITY
    Inventors: Sardar Ali, Dharmesh Kumar, Muftah El-Naas
  • Patent number: 11872541
    Abstract: An embodiment ceria-alumina support (CeO2—Al2O3 support) includes a nano-ceria having a shape of a polygonal bipyramid or a truncated polygonal bipyramid supported on alumina. An embodiment noble metal catalyst for treating exhaust gas includes a noble metal deposited on a ceria-alumina support (CeO2—Al2O3 support) that includes a nano-ceria having a shape of a polygonal bipyramid or a truncated polygonal bipyramid supported on alumina. An embodiment method for affecting resistance to sulfur-poisoning of a noble metal catalyst through structural transformation of nano-ceria supported on alumina includes performing a hydrothermal treatment of ceria supported on ?-alumina.
    Type: Grant
    Filed: August 12, 2022
    Date of Patent: January 16, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Korea Advanced Institute of Science and Technology
    Inventors: Hyunjoo Lee, Beom-Sik Kim, Yoon Sang Nam
  • Patent number: 11870081
    Abstract: The invention relates to the method of preparing catalyst based on platinum (Pt), with a low Pt content, dispersed on carrier containing graphene quantum dots (Pt/GQDs or Pt/GO-GQDs) used for fuel cell with excellent activity in the electrochemical oxidation reaction of alcohol (for example, methanol, ethanol), applied as an anode catalyst for direct alcohol fuel cell (DAFC). At the same time, the invention also refers to the catalyst obtained by this method as an anode catalyst for DAFC.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: January 9, 2024
    Inventors: Thu Ha Thi Vu, Minh Quang Nguyen, Tho Thi Lam, Thao Thi Nguyen, Ngoc Bich Nguyen
  • Patent number: 11865497
    Abstract: Catalyzed particulate filters comprise three-way conversion (TWC) catalytic material, which comprises rhodium as the only platinum group metal, that permeates walls of a particulate filter. Such catalyzed particulate filters may be located downstream of close-coupled three-way conversion (TWC) composites in an emission treatment system downstream of a gasoline direct injection engine for treatment of an exhaust stream comprising hydrocarbons, carbon monoxide, nitrogen oxides, and particulates.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: January 9, 2024
    Assignee: BASF Corporation
    Inventors: Janosch Cravillon, Stephan Siemund, Attilio Siani, Thomas Schmitz, Markus Kinne
  • Patent number: 11865529
    Abstract: A ceramic honeycomb structure includes: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the plurality of cells to form a fluid flow path extending from one end face to other end face. The honeycomb structure contains: 1) particles including one or more selected from silicon carbide, silicon nitride and aluminum nitride; and 2) silicon doped with a dopant. The dopant is a Group 13 element or a Group 15 element. The honeycomb structure has a silicon content (B) of from 20 to 80% by mass, and the honeycomb structure has a porosity of 30% or less.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: January 9, 2024
    Assignee: NGK INSULATORS, LTD.
    Inventors: Takayuki Inoue, Makoto Hamazaki, Kohei Yamada
  • Patent number: 11865515
    Abstract: An active material useful in an oxidative dehydrogenation reactor system has an active phase, and a mixed metal oxide support phase. The active phase includes a transition metal oxide such as manganese oxide, which is reversibly oxidizable and/or reducible between oxidized and reduced states. The support phase includes a mixed metal oxide of a two or more IUPAC Group 2-14 elements. The active phase can also include a promoter such as Na-WO4 and/or a selectivity modifier such as Al or ceria. Also, a reactor including the active material in a reactor, a method of making the active material, and a method of using the active material in a regenerative reaction process.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: January 9, 2024
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Brian M. Weiss, Sophie Liu, Joseph M. Falkowski, Marc R. Schreier, Herb W. Barry
  • Patent number: 11857924
    Abstract: The Invention describes photocatalytic reactor systems that employ fluidization of the photocatalyst. These systems are useful for performing chemical transformations on a chemical containing fluid, including for VOCs. Aspects of the invention include non-imaging optics, abrasion resistant coatings and photoreactor designs.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: January 2, 2024
    Assignee: Sonata Scientific LLC
    Inventors: Peter C. Van Buskirk, Trevor E. James, Melissa A. Petruska, Jeffrey F. Roeder
  • Patent number: 11857925
    Abstract: A catalyst article including a substrate with an inlet side and an outlet side, a first zone and a second zone, where the first zone includes a passive NOx adsorber (PNA), and an ammonia slip catalyst (ASC) comprising a platinum group metal on a support and a first SCR catalyst; where the second zone includes a catalyst selected from the group consisting of a diesel oxidation catalyst (DOC) and a diesel exotherm catalyst (DEC); and where the first zone is located upstream of the second zone. The first zone may include a bottom layer with a blend of: (1) the platinum group metal on a support and (2) the first SCR catalyst; and a top layer with a second SCR catalyst, the top layer located over the bottom layer.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: January 2, 2024
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Hai-Ying Chen, Joseph Fedeyko, Dongxia Liu, Jing Lu
  • Patent number: 11857950
    Abstract: A material and a method of making hydrothermally stable (catalytic) materials on the basis of theta-alumina support that is thermally and hydrothermally stable up to 1,150 C with metal, mixed metal-, metal-oxide nanoparticles dispersed upon it. Such materials did not lose significant amounts of their catalytic activity at temperature ranges for industrially relevant applications (including hydrocarbon oxidation, nitric oxide reduction, carbon monoxide oxidation) even after hydrothermal aging up to 1,150° C.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: January 2, 2024
    Assignee: BATTELLE MEMORIAL INSTITUTE
    Inventors: Konstantin Khivantsev, Libor Kovarik, Janos Szanyi, Yong Wang, Ja-Hun Kwak, Nicholas R. Jaegers
  • Patent number: 11857951
    Abstract: Disclosed herein is a catalyst which comprises a silica core having an outer surface and a mesoporous silica shell having an outer surface and an inner surface with the inner surface being inside the outer surface of said mesoporous silica shell proximate to and surrounding the outer surface of said silica core. Wherein the outer surface of the mesoporous silica shell has openings leading to pores within the mesoporous silica shell which extend toward the outer surface of said silica core. The catalyst also includes catalytically active metal nanoparticles positioned within the pores proximate to said core, wherein the catalytic metal nanoparticles comprise about 0.0001 wt % to about 1.0 wt % of the catalyst. Also disclosed are methods of making the catalyst and using it to carry out a process for catalytically hydrogenolysizing a polyolefinic polymer.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: January 2, 2024
    Assignees: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC., CORNELL UNIVERSITY
    Inventors: Aaron D. Sadow, Wenyu Huang, Frédéric A. Perras, Marek Pruski, Akalanka Tennakoon, Xun Wu, Anne M. Lapointe
  • Patent number: 11858046
    Abstract: A method for producing a metal powder includes maintaining molten reducing metal in a sealed reaction vessel that is free of added oxygen and water, establishing a vortex in the molten reducing metal, introducing a metal halide into the vortex so that the molten reducing metal is in a stoichiometric excess to the metal halide, thereby producing metal particles and salt, removing unreacted reducing metal, removing the salt, and recovering the metal powder. The molten reducing metal can be a Group I metal, a Group II metal, or aluminum.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: January 2, 2024
    Assignee: Nanoscale Powders LLC
    Inventors: David Henderson, Andrew Matheson, Richard Van Lieshout, Donald Finnerty, John W. Koenitzer
  • Patent number: 11850573
    Abstract: This exhaust gas cleaning catalytic device includes a base material and a first catalyst coat layer on the base material. The first catalyst coat layer has a pre-stage section on an exhaust gas flow upstream side, and a post-stage section on an exhaust gas flow downstream side. The first catalyst coat layer pre-stage section and post-stage section each contain inorganic oxide particles and rhodium supported by the inorganic oxide particles, while at least some of the inorganic oxide particles contain ceria. The ceria amount per unit length of the first catalyst coat layer post-stage section is larger than the ceria amount per unit length of the first catalyst coat layer pre-stage section. The first catalyst coat layer pre-stage section is disposed in such a manner that the end portion on the exhaust gas flow upstream side thereof is in direct contact with the exhaust gas flow.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: December 26, 2023
    Assignee: CATALER CORPORATION
    Inventors: Tomohiro Chiba, Kyosuke Murakami, Kenichi Taki, Shunsuke Haga
  • Patent number: 11845065
    Abstract: A method of manufacturing a catalyst article, the method comprising: providing a complex of a polyphenol and a PGM, the polyphenol comprising an ester functional group, the PGM comprising palladium; providing a support material; applying the complex to the support material to form a loaded support material; disposing the loaded support material on a substrate; and heating the loaded support material to form nanoparticles of the PGM on the support material.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: December 19, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Qinghe Zheng, Jing Lu, Michael Howard
  • Patent number: 11848453
    Abstract: Provided is a method of preparing an intermetallic catalyst which includes applying ultrasonic wave to a precursor mixture solution including a noble metal precursor, a transition metal precursor, and a carbon support having an average pore size of about 6 nm to about 15 nm and a specific surface area of about 200 m2/g to about 2000 m2/g to form alloy particles in pores of the carbon support, and annealing the alloy particles in the pores of the carbon support to form intermetallic alloy particles.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: December 19, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Jee Youn Hwang, Eunjik Lee, Dahee Kwak, Ji-Hoon Jang, Songi Oh
  • Patent number: 11845063
    Abstract: A method of manufacturing a catalyst article, the method comprising: providing a complex of a polyphenol and a PGM, the PGM comprising rhodium and/or platinum, the polyphenol comprising an ester functional group; providing a support material; applying the complex to the support material to form a loaded support material; disposing the loaded support material on a substrate; and heating the loaded support material to form nanoparticles of the PGM on the support material.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: December 19, 2023
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Qinghe Zheng, Jing Lu, Michael Howard