公开(公告)号：US20250027208A1

公开(公告)日：2025-01-23

申请号：US18713162

申请日：2022-11-23

Applicant: NITTO DENKO CORPORATION

Inventor： Jesse Dan FROEHLICH

IPC: C25B3/07 ,  C25B3/26 ,  C25B9/21 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052 ,  C25B15/08

Abstract: The present disclosure provides an electrochemical system for generating formic acid from carbon dioxide. The electrochemical system comprises an electrochemical cell and a power source. The electrochemical cell comprises electrochemical compartments and several ion exchange membranes. Methods for generating formic acid from carbon dioxide is also provided.

公开(公告)号：US20240417870A1

公开(公告)日：2024-12-19

申请号：US18704801

申请日：2022-10-26

Applicant: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO

Inventor： Cao-Thang DINH ,  Colin O'BRIEN ,  Christine GABARDO ,  Jonathan EDWARDS ,  Shijie LIU ,  Armin SEDIGHIAN RASOULI ,  Minh Triet LAM ,  Christopher MCCALLUM ,  Yen HOANG ,  David SINTON ,  Edward H. SARGENT

IPC: C25B11/032 ,  C25B1/23 ,  C25B11/052

Abstract: A multiple-layer gas diffusion electrode for sustaining electrochemical reduction of gaseous CO2 and/or CO into multi-carbon products is provided, including a gas diffusion layer comprising a support layer, a microporous layer having pores that are sized to maintain the gaseous CO2 and/or CO, or a combination thereof available for electroreduction, and a catalytic layer comprising a catalyst favoring reduction of the CO2 and/or CO. There are also provided, a method for producing the gas diffusion electrode, a spacer being positionable between an ion exchange membrane and an anode of a membrane electrode assembly, a reactor including a membrane electrode assembly and a support structure, a stack reactor that can include the gas diffusion electrode and the spacer as described herein, a method to diagnose and isolate at least one faulty repeat cell unit in an electrolyzer stack reactor, and a rinsing method for facilitating operation of an electroreduction system.

公开(公告)号：US12168831B2

公开(公告)日：2024-12-17

申请号：US18220021

申请日：2023-07-10

Applicant: Mangrove Water Technologies LTD.

Inventor： Saad Dara ,  Beniamin Zahiri

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

Abstract: 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：US20240392453A1

公开(公告)日：2024-11-28

申请号：US18694026

申请日：2022-09-23

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Gil Ho KIM ,  Joung Hoon PARK ,  Wan Jong WOO ,  Kyu Ho SONG ,  Chiwoo ROH

IPC: C25B11/077 ,  C25B9/23 ,  C25B11/032 ,  C25B11/052

Abstract: An oxidation catalyst for anion exchange membrane water electrolysis that exhibits excellent catalytic activity, electrical conductivity and a large surface area is disclosed. A preparation method of the oxidation catalyst, an anode for anion exchange membrane water electrolysis and an anion exchange membrane water electrolysis system, each including the oxidation catalyst are also disclosed. The oxidation catalyst for anion exchange membrane water electrolysis includes a spinel-based oxide, and is prepared by precisely controlling the use of complexing agent and the pH using a co-precipitation method, whereby the oxidation catalyst can reduce the catalyst particle size to facilitate uniform dispersion of high viscosity and has a nano-sized flake structure, which makes it possible to uniformly coat the ionomer between flakes, and forms a porous structure, thereby widening the surface area and achieving excellent catalytic activity.

公开(公告)号：US20240376613A1

公开(公告)日：2024-11-14

申请号：US18782599

申请日：2024-07-24

Applicant: Battelle Energy Alliance, LLC

Inventor： Meng Li ,  Bin Hua ,  Dong Ding

IPC: C25B3/26 ,  C25B1/23 ,  C25B1/50 ,  C25B3/03 ,  C25B9/17 ,  C25B11/052 ,  C25B11/069 ,  C25B11/081

Abstract: An electrochemical cell comprises a positive electrode, a negative electrode comprising a tunable catalyst formulated to selectively hydrogenate carbon dioxide, and an electrolyte between the positive electrode and the negative electrode. The tunable catalyst comprising at least one metal comprising a size within a range of from a single atom to about 999 nanometers and formulated to produce one or more specific carbonaceous product. Also disclosed is an electrochemical cell comprises a positive electrode, a negative electrode comprising a tunable catalyst formulated to selectively hydrogenate carbon dioxide, and an electrolyte between the positive electrode and the negative electrode. The tunable catalyst comprising a transition metal catalyst dispersed and supported on an oxide of at least one lanthanide element. Further disclosed is a carbon dioxide hydrogenation system.

公开(公告)号：US12139803B2

公开(公告)日：2024-11-12

申请号：US18271269

申请日：2022-01-07

Applicant: TOTALENERGIES ONETECH ,  THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO

Inventor： Adnan Ozden ,  Yuhang Wang ,  Fengwang Li ,  David Sinton ,  Edward Sargent

IPC: C25B9/23 ,  C23C14/35 ,  C25B3/03 ,  C25B3/26 ,  C25B11/032 ,  C25B11/052 ,  C25B11/056 ,  C25B11/065 ,  C25B15/08

Abstract: The disclosure discloses a membrane electrode assembly (MEA) for electrochemically converting carbon monoxide (CO) into ethylene (C2H4) under applied current density, the MEA comprising: a cathode; an anode; an anion-exchange membrane (AEM) to separate the cathode from the anode; an anolyte; a reactant inlet in fluid communication with the cathode to provide a CO-enriched gas component; and a product outlet in fluid communication with the cathode to release a product mixture comprising C2H4; wherein the cathode comprises: a first layer including adsorption sites to adsorb CO as CO* intermediates; a second layer that facilitates stabilization of the CO* intermediates for adsorption onto the adsorption sites of the first layer; and a third layer that facilitates diffusion of CO to the adsorption sites of the first layer.

公开(公告)号：US20240352604A1

公开(公告)日：2024-10-24

申请号：US18303767

申请日：2023-04-20

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Mohamed Jaffer Sadiq MOHAMED ,  Muhammad Ashraf GONDAL

IPC: C25B11/077 ,  C25B1/04 ,  C25B11/052 ,  C25B11/065 ,  C25B11/067

CPC classification number: C25B11/0773 ,  C25B1/04 ,  C25B11/052 ,  C25B11/065 ,  C25B11/067

Abstract: An electrode includes a transparent substrate, and a layer of a nanostructured material at least partially covering a surface of the transparent substrate. The nanostructured material includes defective perovskite nanostructures (DPNSs) in the form of nanoplates having an average particle size in a range of 10 to 100 nanometers (nm), an interplanar spacing d(101) of the (101) plane in a range of 0.3 to 0.4 nm, and an interplanar spacing d(104) of the (104) plane in a range of 0.2 to 0.3 nm. A method of making the electrode.

公开(公告)号：US20240342649A1

公开(公告)日：2024-10-17

申请号：US18574587

申请日：2022-06-28

Applicant: The Regents of the University of California

Inventor： Erika Callagon La Plante ,  Gaurav Sant ,  Xin Chen ,  David Jassby ,  Dante Simonetti ,  Yenwen Tseng ,  Thomas Traynor

IPC: B01D53/62 ,  B01D53/14 ,  B01D53/96 ,  C25B1/18 ,  C25B11/03 ,  C25B11/052 ,  C25B11/063 ,  C25B11/081

CPC classification number: B01D53/62 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/965 ,  C25B1/18 ,  C25B11/03 ,  C25B11/052 ,  C25B11/063 ,  C25B11/081 ,  B01D2251/304 ,  B01D2251/402 ,  B01D2251/404 ,  B01D2252/1035 ,  B01D2252/20421 ,  B01D2257/504

Abstract: Disclosed herein are methods of capturing CO2 from a gas source using electrochemically-enhanced amine capture to form a concentrated CO2 vapor, followed by sequestering CO2 from the concentrated vapor in a sequestration step. The sequestration step includes contacting the concentrated vapor with an aqueous sequestration solution comprising ions capable of forming an insoluble carbonate salt, such that the aqueous sequestration solution comprises the CO2, electrochemically basifying the sequestration solution, thereby precipitating a carbonate solid, separating the carbonate solids from the aqueous sequestration solution or the surface of the mesh.

公开(公告)号：US20240309522A1

公开(公告)日：2024-09-19

申请号：US18183760

申请日：2023-03-14

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Muhammad Ali EHSAN ,  Abuzar KHAN ,  Abbas Saeed HAKEEM

IPC: C25B11/052 ,  C23C16/40 ,  C23C16/448 ,  C25B1/04 ,  C25B9/17 ,  C25B11/031 ,  C25B11/061 ,  C25B11/077

CPC classification number: C25B11/052 ,  C23C16/405 ,  C23C16/4486 ,  C25B1/04 ,  C25B9/17 ,  C25B11/031 ,  C25B11/061 ,  C25B11/077

Abstract: A vanadium oxide-based electrode for electrochemical water splitting that includes a metallic substrate and a layer of particles of a vanadium oxide composite at least partially covering a surface of the metallic substrate. The particles of the vanadium oxide composite are in the form of nanobeads having an average particle size of 50 to 400 nm. A method of making the electrode.

公开(公告)号：US20240279823A1

公开(公告)日：2024-08-22

申请号：US18681101

申请日：2022-06-08

Applicant: Siemens Energy Global GmbH & Co. KG

Inventor： Andre Klinger ,  Yashar Musayev

IPC: C25B9/19 ,  C25B1/02 ,  C25B11/032 ,  C25B11/052 ,  C25B11/081 ,  C25B13/08

CPC classification number: C25B9/19 ,  C25B1/02 ,  C25B11/032 ,  C25B11/052 ,  C25B11/081 ,  C25B13/08

Abstract: An electrolytic cell for polymer electrolyte membrane electrolysis with a cathode half-cell and an anode half-cell is provided. The cathode half-cell and the anode half-cell being separated from one another by a polymer electrolyte membrane. The anodic half-cell has a gas diffusion layer. The gas diffusion layer is made from a fine-meshed metallic carrier material. An anodic catalyst layer with an anodic catalyst material is applied onto the polymer electrolyte membrane. The anodic catalyst layer is arranged adjacent to the gas diffusion layer, wherein a thin protective layer is applied in each case locally and selectively onto the fine-meshed carrier material in the area of the contact points between the gas diffusion layer and the adjoining anodic catalyst layer. The thin protective layer comprises iridium and/or iridium oxide so that the input of anodic catalyst material into the gas diffusion layer is inhibited.