公开(公告)号：US20230304169A1

公开(公告)日：2023-09-28

申请号：US17568594

申请日：2022-01-04

申请人： UOP LLC

发明人： Richa Baronia ,  Jyoti Goel ,  Sachin Daulatgir Giri ,  Sagar Sopan Ghadage ,  Kuldeep Balram Mamtani

IPC分类号： C25B3/07 ,  C25B3/23 ,  C25B13/00 ,  C25B9/17 ,  C25B11/032 ,  C25B11/042

CPC分类号： C25B3/07 ,  C25B3/23 ,  C25B13/00 ,  C25B9/17 ,  C25B11/032 ,  C25B11/042

摘要： A process for electrochemical conversion of carbon dioxide using a three-compartment cell provides low voltage requirements, high faradaic efficiencies, and high concentration of formic acid in product solutions. The applied voltage between anode and cathode should be less than 3.5V. Carbon dioxide may be converted to an organic acid.

公开(公告)号：US20230304166A1

公开(公告)日：2023-09-28

申请号：US18041189

申请日：2021-08-11

申请人： The Regents of the University of California

发明人： Iryna Zenyuk ,  Andrea Perego ,  Mo Li ,  Devashish S. Kulkarni

IPC分类号： C25B1/16 ,  C25B9/21 ,  C25B13/08 ,  C25B11/077 ,  C25B11/065 ,  C25B11/081 ,  C25B11/032 ,  C25B15/08 ,  C04B7/48 ,  C25B13/02

CPC分类号： C25B1/16 ,  C25B9/21 ,  C25B13/08 ,  C25B11/077 ,  C25B11/065 ,  C25B11/081 ,  C25B11/032 ,  C25B15/083 ,  C04B7/48 ,  C25B13/02 ,  C25B1/04

摘要： An electrochemical method for producing calcium hydroxide includes dissolving a calcium precursor in a first solution in contact with a first electrode to produce Ca2+ ions, transporting the Ca2+ ions across a first membrane from the first solution into a second solution using a first electrochemical potential, producing hydroxide ions at a second electrode, transporting the hydroxide ions across a second membrane into the second solution using a second electrochemical potential, and precipitating calcium hydroxide from the second solution.

公开(公告)号：US20230287582A1

公开(公告)日：2023-09-14

申请号：US18173079

申请日：2023-02-23

申请人： HONDA MOTOR CO., LTD.

发明人： Hiroshi OIKAWA ,  Hiroki HOMMA

IPC分类号： C25B3/26 ,  C25B13/00 ,  C25B9/19 ,  C25B15/08 ,  C25B11/032 ,  C25B1/23 ,  C25B1/02 ,  C25B3/03

CPC分类号： C25B3/26 ,  C25B13/00 ,  C25B9/19 ,  C25B15/08 ,  C25B11/032 ,  C25B1/23 ,  C25B1/02 ,  C25B3/03

摘要： An electrochemical reaction device includes: an electrode layer including a cathode, an ion exchange membrane, and an anode that are stacked in this order; a first flow path structure including an anode-specific flow path as a passage for an electrolytic solution defined by a surface on one side and a cathode-specific flow path as a passage for an electrolytic solution containing dissolved carbon dioxide defined by a surface on the other side; and a second flow path structure including an anode-specific flow path as a passage for an electrolytic solution defined by a surface on one side and a cathode-specific flow path as a passage for an electrolytic solution containing dissolved carbon dioxide defined by a surface on the other side. The first flow path structure, the electrode layer, the second flow path structure, and the electrode layer are stacked in this order repeatedly to form an electrolytic cell stacking structure.

公开(公告)号：US11739433B2

公开(公告)日：2023-08-29

申请号：US17279725

申请日：2019-08-27

申请人： PAUL SCHERRER INSTITUT

发明人： Lorenz Gubler ,  Pierre Boillat ,  Ugljesa Babic ,  Mateusz Zlobinski

IPC分类号： C25B15/08 ,  C25B11/032 ,  C25B9/19 ,  C25B1/04 ,  C25B13/00

CPC分类号： C25B15/085 ,  C25B1/04 ,  C25B9/19 ,  C25B11/032 ,  C25B13/00

摘要： Non-proton cationic impurities are removed from the ionomer in a proton exchange membrane of an electrochemical cell and from the anode side and cathode side catalyst layers. A supply path for an anode feed to the ionomer on the anode side of the proton exchange membrane and a supply path for a cathode feed to the ionomer on the cathode side of the proton exchange membrane are provided. A regenerating fluid with acidic pH is brought into contact with the ionomer on the cathode side of the proton exchange membrane to accomplish an ion exchange of the non-proton cationic impurities with protons and thus remove the non-proton cationic impurities from the ionomer into the regenerating fluid. This removes the non-proton cationic impurities from the ionomer of the electrochemical cell without increasing the risk of corrosion and without interrupting the process of the electrochemical cell.

公开(公告)号：US11702755B2

公开(公告)日：2023-07-18

申请号：US17883969

申请日：2022-08-09

申请人： Mangrove Water Technologies LTD.

发明人： Saad Dara ,  Beniamin Zahiri

IPC分类号： C25B11/031 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  C25B9/21 ,  B01D61/46 ,  B01D69/02 ,  C01D15/02 ,  C01D15/04 ,  C01D15/08 ,  C01F5/24 ,  C01F11/18 ,  C02F1/461 ,  C02F1/469 ,  C25B1/16 ,  C25C1/02 ,  C25C7/02 ,  C25C7/04 ,  C25B11/048 ,  C25B11/046 ,  C25B9/19 ,  C25B11/053 ,  C25B13/00 ,  C02F101/10 ,  C02F103/08 ,  C02F103/10

CPC分类号： C25B9/23 ,  B01D61/46 ,  B01D69/02 ,  C01D15/02 ,  C01D15/04 ,  C01D15/08 ,  C01F5/24 ,  C01F11/181 ,  C02F1/4693 ,  C02F1/46109 ,  C25B1/16 ,  C25B9/19 ,  C25B9/21 ,  C25B11/032 ,  C25B11/046 ,  C25B11/048 ,  C25B11/052 ,  C25B11/053 ,  C25B13/00 ,  C25C1/02 ,  C25C7/02 ,  C25C7/04 ,  B01D2313/345 ,  B01D2325/10 ,  B01D2325/36 ,  B01D2325/38 ,  B01D2325/42 ,  C02F2001/46142 ,  C02F2001/46166 ,  C02F2101/10 ,  C02F2103/08 ,  C02F2103/10

摘要： In this disclosure, a process of recycling acid, base and the salt reagents required in the Li recovery process is introduced. A membrane electrolysis cell which incorporates an oxygen depolarized cathode is implemented to generate the required chemicals onsite. The system can utilize a portion of the salar brine or other lithium-containing brine or solid waste to generate hydrochloric or sulfuric acid, sodium hydroxide and carbonate salts. Simultaneous generation of acid and base allows for taking advantage of both chemicals during the conventional Li recovery from brines and mineral rocks. The desalinated water can also be used for the washing steps on the recovery process or returned into the evaporation ponds. The method also can be used for the direct conversion of lithium salts to the high value LiOH product. The method does not produce any solid effluent which makes it easy-to-adopt for use in existing industrial Li recovery plants.

公开(公告)号：US20240347737A1

公开(公告)日：2024-10-17

申请号：US18753247

申请日：2024-06-25

申请人： DENSO CORPORATION

发明人： Keita Takhashi ,  Naohiro Hayashi

IPC分类号： H01M4/86 ,  C25B11/032 ,  C25B11/061 ,  H01M8/12

CPC分类号： H01M4/8663 ,  C25B11/032 ,  C25B11/061 ,  H01M4/8621 ,  H01M2008/1293

摘要： An electrochemical cell includes a metal support made of an Fe-based alloy, a cell portion, and a bonding layer. The cell portion includes: a solid electrolyte layer having oxygen ion conductivity; a first electrode layer disposed on one side of the solid electrolyte layer; and a second electrode layer disposed on the other side of the solid electrolyte layer. The bonding layer bonds the metal support and the first electrode layer. The bonding layer is made of an electronically conductive oxide containing at least one metal element of alloying elements of the Fe-based alloy of the metal support. The bonding layer has a gradient such that a concentration of the at least one metal element decreases from the metal support toward the first electrode layer.

公开(公告)号：US20240328014A1

公开(公告)日：2024-10-03

申请号：US18285352

申请日：2022-03-30

申请人： THE UNIVERSITY OF TOKYO ,  NISSAN CHEMICAL CORPORATION

发明人： Yoshiaki NISHIBAYASHI ,  Kazuya ARASHIBA ,  Yuya ASHIDA ,  Shoichi KONDO ,  Takamasa KIKUCHI ,  Norihito SHIGA

IPC分类号： C25B11/095 ,  C07F11/00 ,  C25B1/27 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052

CPC分类号： C25B11/095 ,  C07F11/005 ,  C25B1/27 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052

摘要： An ammonia production method is a method that produces ammonia from nitrogen molecules by donating electrons from a power supply, protons from a proton source, and the nitrogen molecules from means for supplying a nitrogen gas in presence of a complex, a solid catalyst, and a reaction field forming material in a cathode by a production apparatus for performing electrolysis. In the complex, the solid catalyst, and the reaction field forming material, for example, a molybdenum complex expressed by Formula (A1-1) is used as the complex.




A platinum catalyst is used as the solid catalyst, and a rare earth metal-carbon-based binder is used as the reaction field forming material.

公开(公告)号：US20240318330A1

公开(公告)日：2024-09-26

申请号：US18616626

申请日：2024-03-26

申请人： NGK INSULATORS, LTD.

发明人： Naoya AKIYAMA ,  Toshiyuki NAKAMURA ,  Makoto OHMORI

IPC分类号： C25B11/032 ,  C25B1/042 ,  C25B9/23 ,  C25B11/037 ,  C25B11/042

CPC分类号： C25B11/032 ,  C25B1/042 ,  C25B9/23 ,  C25B11/037 ,  C25B11/042

摘要： An electrochemical cell includes a metal substrate and a cell body. The metal substrate has: a gas-permeable region in which a plurality of connecting holes are formed; and a non-gas-permeable region surrounding the gas-permeable region in a plan view. The cell body is disposed on the metal substrate. The cell body has: a first electrode layer containing Ni; a second electrode layer; and an electrolyte layer disposed between the first electrode layer and the second electrode layer. The first electrode layer has a first region formed on the gas-permeable region, and a second region formed on the non-gas-permeable region. A mean particle diameter of Ni contained in the second region is smaller than a mean particle diameter of Ni contained in the first region.

公开(公告)号：US20240309518A1

公开(公告)日：2024-09-19

申请号：US18273381

申请日：2022-01-27

申请人： THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS

发明人： Meenesh R. Singh ,  Aditya Prajapati

IPC分类号： C25B3/07 ,  C25B3/23 ,  C25B9/15 ,  C25B9/19 ,  C25B11/032 ,  C25B11/054 ,  C25B11/089

CPC分类号： C25B3/07 ,  C25B3/23 ,  C25B9/15 ,  C25B9/19 ,  C25B11/032 ,  C25B11/054 ,  C25B11/089

摘要： An electrochemical cell for conversion of methane to methanol includes a bimetallic catalyst having alternating regions of first and second metals thereby providing interfaces at which methane is converted to methanol or formate.

公开(公告)号：US20240291073A1

公开(公告)日：2024-08-29

申请号：US18652224

申请日：2024-05-01

申请人： Lawrence Livermore National Security, LLC

发明人： Victor Alfred Beck ,  Sarah Baker ,  Jonathan Tesner Davis ,  Eric Duoss ,  Daniel Tortorelli ,  Seth Evan Watts ,  Marcus A. Worsley

IPC分类号： H01M10/6568 ,  C25B3/26 ,  C25B9/15 ,  C25B9/70 ,  C25B11/032 ,  H01M4/02 ,  H01M4/04 ,  H01M4/86 ,  H01M4/88 ,  H01M8/18 ,  H01M10/6561

CPC分类号： H01M10/6568 ,  C25B9/15 ,  C25B9/70 ,  C25B11/032 ,  H01M4/04 ,  H01M4/8605 ,  H01M4/861 ,  H01M4/88 ,  H01M10/6561 ,  C25B3/26 ,  H01M2004/021 ,  H01M8/18

摘要： Electrochemical reactors with electrodes that have variable porosity across the electrode and associated methods are described. The electrodes are designed and micro-architected to have variable porosity and 3D flow. One example method of selecting porosities in an electrochemical reactor includes dividing an electrode of the electrochemical reactor into a plurality of unit cells and determining a plurality of cell-specific porosities for the plurality of unit cells as a function of a location for each of the plurality of unit cells. The cell-specific porosities are configured based on a rod diameter of each unit cell's internal structure relative to each unit cell's cell length, and each location in the electrode provides a selected fluid flow property and a selected conductive property to meet one or more performance metrics.