Patents Examined by Patricia L. Hailey
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Patent number: 11969713Abstract: Functionalized catalysts for use in a hydrogen evolution reaction (HER) contain nanoparticles containing a transition metal enveloped in layers of graphene, which renders the nanoparticles resistant to passivation while maintaining an optimal ratio of transition metal and transition metal oxide in the nanoparticles. The catalysts can be utilized with anionic exchange polymer membranes for hydrogen production by alkaline water electrolysis.Type: GrantFiled: December 21, 2020Date of Patent: April 30, 2024Assignee: Northeastern UniversityInventors: Sanjeev Mukerjee, Robert Allen, Huong Thi Thanh Doan, Ian Kendrick
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Patent number: 11969716Abstract: This application discloses a silicon carbide (SiC)-loaded graphene photocatalyst for hydrogen production under visible light irradiation and a preparation method thereof. Pure SiC and pure black carbon are respectively prepared and mixed to obtain a mixture with a resistance less than 100?. Then the mixture was vacuumized and processed with a current pulse with an increasing voltage until a breakdown occurs, and subjected to ultrasonic stirring, centrifugal washing and vacuum drying in turn to obtain the SiC-loaded graphene photocatalyst. By means of the current pulse, a heterojunction is formed between SiC and graphene to improve the catalytic activity of the photocatalyst; and the photocatalytic hydrogen production rate of SiC nanoparticles can be enhanced after loaded on the graphene.Type: GrantFiled: June 21, 2023Date of Patent: April 30, 2024Assignee: Guangdong University of TechnologyInventors: Yun Chen, Shengbao Lai, Biao Li, Zuohui Liu, Guanhai Wen, Maoxiang Hou, Xin Chen
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Patent number: 11969711Abstract: The present invention relates to a carbon-based precious metal-transition metal composite catalyst and a preparation method therefor, and more particularly, to a catalyst synthesis method in which, when preparing a high-content precious metal-transition metal composite catalyst, a catalyst having uniform particles and composition can be prepared, and cyclohexane dimethanol (CHDM) is efficiently produced by the hydrogenation reaction of cyclohexane dicarboxylic acid (CHDA) in an aqueous solution.Type: GrantFiled: December 10, 2019Date of Patent: April 30, 2024Assignee: HANWHA SOLUTIONS CORPORATIONInventors: Jeong Kwon Kim, Sun Woo Yook, Bong Sik Jeon, Wan Jae Myeong
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Patent number: 11964937Abstract: A (methyl)acrolein oxidation catalyst and a preparation method therefor-in which the catalyst has a composition represented by the following formula: x(Mo12PaCsbVcDeOf)+tC/yZ in which Mo12PaCSbVcDeOf is a heteropolyacid salt main catalyst; C is a nano carbon fiber additive, and Z is a carrier thermal conduction diluent; Mo, P, Cs, V, and O represent the elements of molybdenum, phosphorus, cesium, vanadium, and oxygen, respectively; D represents at least one element selected from the group consisting of copper, iron, magnesium, manganese, antimony, zinc, tungsten, silicon, nickel, and palladium; a, b, c, e, and f represent the atomic ratio of each element, a=0.1-3, b=0.01-3, c=0.01-5, e=0.01-2, and f being the atomic ratio of oxygen required to satisfy the valence of each of the described components; x and y represent the weights of the main catalyst and the carrier thermal conduction diluent Z, and y/x=11.1-50%; and t represents the weight of the nano carbon fiber, and t/x=3-10%.Type: GrantFiled: January 17, 2019Date of Patent: April 23, 2024Assignee: Shanghai Huayi New Material Co., Ltd.Inventors: Xin Wen, Ge Luo, Xinlei Jin, Tonghao Wu, Yan Zhuang, Zhigang Qian, Xiaodong Chu
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Patent number: 11962018Abstract: An electrochemical oxygen reduction catalyst comprising platinum-containing nanoparticles and at least one member selected from the group consisting of a melamine compound, a thiocyanuric acid compound, and a polymer containing the melamine compound or the thiocyanuric acid compound as a monomer is an electrochemical oxygen reduction catalyst having a high oxygen reduction activity (small overvoltage).Type: GrantFiled: May 15, 2019Date of Patent: April 16, 2024Assignee: National Institute of Advanced Industrial Science and TechnologyInventor: Masafumi Asahi
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Patent number: 11951457Abstract: Provided herein is a novel silica-supported nickel nanocomposite and a novel one-pot solution combustion synthesis of that nanocomposite. The method allows the synthesis of small size nickel nanoparticles (e.g., 3 nm to 40 nm) for which a considerable percentage of nickel is inserted into silica, experiencing strong metal-support interaction. These exceptional physicochemical properties make them desirable for various industrial applications, such as electronic, heterogeneous catalysis as well as conversion and storage of energy.Type: GrantFiled: January 4, 2022Date of Patent: April 9, 2024Inventors: Sardar Ali, Dharmesh Kumar, Ahmed Gamal, Mahmoud M. Khader, Muftah El-Naas
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Patent number: 11955647Abstract: Disclosed are a method for preparing a graphene dot-palladium hybrid having a nanosponge structure that includes reducing a palladium precursor in the presence of a carbon dot and sodium bromide, and a graphene dot-palladium hybrid catalyst prepared according to the method. The nanosponge structure of the graphene dot-palladium hybrid is encapsulated by a graphene dot. The carbon dot is doped with at least one heteroatom selected from the group consisting of nitrogen, sulfur, phosphorus, and boron.Type: GrantFiled: November 16, 2018Date of Patent: April 9, 2024Assignee: THE INDUSTRY & ACADEMIC COOPERATION IN CHUNGNAM NATIONAL UNIVERSITY (IAC)Inventors: Ho-Suk Choi, Van Toan Nguyen
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Patent number: 11945776Abstract: An electrolyte solution containing a compound represented by the following formula (1).Type: GrantFiled: January 9, 2019Date of Patent: April 2, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yoshiko Kuwajima, Akiyoshi Yamauchi, Kotaro Hayashi, Hisako Nakamura, Toshiharu Shimooka, Takaya Yamada, Yoshihiro Yamamoto, Shigeaki Yamazaki, Kenzou Takahashi
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Patent number: 11944955Abstract: The present invention concerns a catalyst and pre-treatment process for acidic charges consisting of sulfated zirconia and cerium for the production of biofuels, characterized in that the catalyst has greater activity and resistance to deactivation with acidic charges.Type: GrantFiled: June 27, 2022Date of Patent: April 2, 2024Assignee: PetrĂ³leo Brasileiro S.A.—PetrobrasInventors: Cristina Pontes Bittencourt Quitete, Vitor Loureiro Ximenes, Marcio De Figueiredo Portilho
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Patent number: 11944957Abstract: A glass fiber filter element for visible light photocatalysis and air purification and a method for preparing the same. The glass fiber filter element includes 4 to 7 wt % of nanoparticles including at least one selected from zinc oxide, graphene oxide, titanium oxide, and reduced graphene oxide, 2 to 7 wt % of silver nanowires, 3 to 12 wt % of an adhesive system, and 78 to 91 wt % of a glass fiber mat, based on the total weight of the glass fiber filter element. The glass fiber mat is made of at least two glass fibers with different diameters, and the diameters are in a range of 0.15 to 3.5 ?m. The nanoparticles have a particle size from 1 to 200 nm, and the silver nanowires have a diameter of 15 to 50 nm.Type: GrantFiled: November 17, 2021Date of Patent: April 2, 2024Assignees: CHONGQING INSTITUTE OF EAST CHINA NORMAL UNIVERSITY, ROI OPTOELECTRONICS TECHNOLOGY CO, LTD., EAST CHINA NORMAL UNIVERSITYInventors: Heping Zeng, Mengyun Hu, Guang Feng
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Patent number: 11939220Abstract: Described is a method of preparing transition metal nanoparticles on a graphene support, in which a tertiary graphite intercalation compound is provided with intercalated metal ions such that the tertiary graphite intercalation compound comprises a graphene sheet having a negative charge. The graphene sheet is contacted with a transition metal salt to cause reduction of the transition metal salt by the graphene sheet, and to form transition metal nanoparticles. Also described are products arising from the method, and uses of those products.Type: GrantFiled: February 13, 2019Date of Patent: March 26, 2024Assignee: UCL BUSINESS LTDInventors: Chris Howard, Rhodri Jervis, Daniel Brett, Gyen Angel, Patrick Cullen, Chris Gibbs
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Patent number: 11931724Abstract: Disclosed is a catalyst, a method for producing the catalyst, an electrode comprising the catalyst, a membrane-electrode assembly comprising the electrode, and a fuel cell comprising the membrane-electrode assembly, the catalyst being highly efficient and having a long service life due to improved interfacial properties with ionomer from having fluoride (F) groups on the surface thereof. The catalyst according to the present invention comprises: a support; metal particles supported in the support; and fluoride (F) groups on the surface of the support and metal particles.Type: GrantFiled: December 16, 2019Date of Patent: March 19, 2024Assignee: KOLON INDUSTRIES, INC.Inventor: Jung Ho Kim
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Patent number: 11932558Abstract: A piezoelectric polymer used as a piezocatalyst, and methods of manufacture and use therefor. A preferred piezoelectric polymer is poly(vinylidene difluoride) (PVDF) due to its piezoelectric response and good flexibility. The polymer can be doped with a metal, metal salt, metal carbonyl, metal oxide such as ZnO, Co2O3, or TiO2, or ion such as Cr3+, Co2+, or Zn2+. The dopant can be chosen so that when the polymer is PVDF the dopant increases the amount of ?-phase PVDF and/or ?-phase PVDF relative to ?-phase PVDF, thereby increasing the piezocatalytic response of the polymer. The compound to be decomposed can be adsorbed on the surface of the piezoelectric polymer. Applications include wastewater treatment, CO2 capture and reduction, hydroformylation, water splitting, and ammonia synthesis.Type: GrantFiled: March 2, 2021Date of Patent: March 19, 2024Assignee: University of Rhode Island Board of TrusteesInventors: William B. Euler, Angela Thach, Lasanthi Sumathirathne, Benjamin B. Cromwell, Mara Dubnicka
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Patent number: 11933725Abstract: A method is provided that allows the sulfur component concentration in gasoline to be estimated to high precision. The measuring method of the disclosure is a method of measuring the concentration of sulfur components in gasoline that contains sulfur components and aromatic components. The measuring method of the disclosure comprises: (A1) removing a portion of the gasoline by gasification to lower the proportion of the aromatic component concentration with respect to the sulfur component concentration in the gasoline, (A2) measuring values related to the refractive index of the gasoline, and (A3) measuring the sulfur component concentration in the gasoline based on the values related to the refractive index.Type: GrantFiled: November 9, 2020Date of Patent: March 19, 2024Assignees: Toyota Jidosha Kabushiki Kaisha, National University Corporation Okayama UniversityInventors: Akihiro Honda, Hideki Fukano
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Patent number: 11926690Abstract: A Ziegler-Natta catalyst component precursor made from or containing a mechanical mixture of (a) distinct particles of adducts of formula MgCl2(R1OH)n where R is a C1-C8 alkyl group and n is from 0.2 to 6 having average particle size (P50a) ranging from 5 to 100 ?m; and (b) from 0.2 to 5.0% by weight of distinct particles of a solid compound containing more than 50% by weight of Sift units and having average particle size (P50b), wherein the ratio P50b/P50a ranges from 0.4 to 1.5.Type: GrantFiled: September 17, 2019Date of Patent: March 12, 2024Assignee: Basell Poliolefine Italia S.r.l.Inventor: Diego Brita
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Patent number: 11923548Abstract: The present invention relates to the redox buffer electro-catalyst for bi-functional air electrode of metal-air batteries and fuel cells, wherein an electro-catalyst comprising of redox buffer oxides facilitates bi-functional activity of air electrode towards oxygen reduction and oxygen evolution reactions at the air electrode-electrolyte interface. The bi-functional activity of electro-catalyst comprising of redox buffer oxides is superior, due to improved electron transfer ability in comparison to electro-catalyst without redox buffer oxides.Type: GrantFiled: September 2, 2021Date of Patent: March 5, 2024Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Narayanam Seshubabu, Vakakuzhiyil Gopinathan Anju, Naduhatty Selai Raman, Shailendra Kumar Sharma, Sankara Sri Venkata Ramakumar
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Patent number: 11918980Abstract: A catalyst for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction as well as a preparation method and use thereof are provided. The catalyst includes a zero-valent iron and phosphorus co-modified carbon material which includes a carbon material as a carrier, a zero-valent iron supported onto the carrier and serving as an active component, and a phosphate functional group formed on the surface of the carbon material. The preparation method includes: co-modifying a carbon material using a ferric salt and organic phosphorus to obtain the catalyst for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction. The present application further provides a method for continuous production of 1,1,1,3-tetrachloropropane through gas-solid reaction.Type: GrantFiled: December 24, 2021Date of Patent: March 5, 2024Assignees: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCES, NINGBO JUHUA CHEMICAL & SCIENCE CO., LTD.Inventors: Yexin Zhang, Qiang Zhou, Jian Zhang, Junliang Zhong, Xiuxiu Wang, Jili Du, Hui Chen, Chengjun Mu, Jie Yang, Linbing Xia, Yong Yang, Gang Wu
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Patent number: 11918987Abstract: Provided are a preparation method for a propylene epoxidation catalyst, and a use thereof. During the preparation, an alkoxide solution of a prepared active component and a silica gel support are mixed, then a rotary evaporation treatment is performed on the mixture to remove a low-carbon alcohol to obtain a catalyst precursor, and then the obtained catalyst precursor is subjected to calcination and silylation treatments to obtain the propylene epoxidation catalyst. The catalyst is prepared in a simple process, can be applied to the chemical process of preparing propylene oxide by propylene epoxidation, has high average selectivity to propylene oxide, and has industrial application prospect.Type: GrantFiled: January 14, 2020Date of Patent: March 5, 2024Assignee: Wanhua Chemical Group Co., Ltd.Inventors: Lei Wang, Tongji Wang, Fei Ye, Kang Sun, Naibo Chu, Qiankun Jiao, Yuan Li
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Patent number: 11904301Abstract: A method of chlorinating a antimony fluorohalide catalyst is disclosed. In one embodiment the method comprises contacting an antimony fluorohalide catalyst that contains one or more fluorines with a regenerating agent chosen from 2-chloro-3,3,3-trifluoropropene (1233xf), 1,1,1,3-tetrachloropropane (250fb), 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) and combinations of 1233xf, 250fb, and 244bb, under conditions effective to exchange at least one fluorine in the antimony fluorohalide catalyst with chlorine. The method can be used to regenerate spent antimony fluorohalide catalyst, for example regenerating SbCl5 from SbF5.Type: GrantFiled: September 6, 2019Date of Patent: February 20, 2024Assignee: THE CHEMOURS COMPANY FC, LLCInventors: Xuehui Sun, Mario Joseph Nappa, Karl Krause
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Patent number: 11905471Abstract: The present invention relates to a hydrogenolysis process wherein a hydrocarbon-based feedstock comprising aromatic compounds having at least 8 carbon atoms is treated by means of a hydrogen feed and in the presence of a catalyst, in order to convert C2+ alkyl chains of said aromatic compounds into methyl groups and to produce a hydrogenolysis effluent enriched in methyl-substituted aromatic compounds, wherein the catalyst comprises a support, comprising at least one refractory oxide, and an active phase comprising nickel and molybdenum, wherein: the nickel content being between 0.1 and 25% by weight relative to the total weight of the catalyst; the molybdenum content being between 0.1 and 20% by weight relative to the total weight of the catalyst; and the catalyst comprising a molar ratio of molybdenum to nickel of between 0.2 and 0.9. The present invention also relates to said catalyst and to the process for preparing said catalyst.Type: GrantFiled: December 13, 2019Date of Patent: February 20, 2024Assignee: IFP ENERGIES NOUVELLESInventors: Vincent Coupard, Anne-Claire Dubreuil, Alexandre Jouve, Denis Uzio