公开(公告)号：US20240150918A1

公开(公告)日：2024-05-09

申请号：US18547076

申请日：2022-02-22

申请人： Danmarks Tekniske Universitet ,  The Board of Trustees of the Leland Stanford Junior University

发明人： Suzanne Zamany Andersen ,  Katja Li ,  Vanessa Jane Bukas ,  Mattia Saccoccio ,  Kevin Krempl ,  Jakob Kibsgaard ,  Peter Christian Kjærgaard Vesborg ,  Debashish Chakraborty ,  Jens Kehlet Nørskov ,  Ib Chorkendorff ,  Michael Statt ,  Jakob Bruun Pedersen ,  Rokas Sazinas

IPC分类号： C25B15/08 ,  C25B1/27 ,  C25B9/05 ,  C25B9/65 ,  C25B15/02

CPC分类号： C25B15/08 ,  C25B1/27 ,  C25B9/05 ,  C25B9/65 ,  C25B15/02

摘要： The invention regards a method for electrochemical ammonia synthesis, comprising the steps of: —providing an electrolysis cell having a cathode, —contracting the cathode with a source of cations preferably lithium cations, a source of nitrogen a source of oxygen, and a source of protons, wherein the oxygen source provides a predefined oxygen concentration, and —subjecting the cell to a potential and current load, whereby ammonia is synthesized.

公开(公告)号：US20240110301A1

公开(公告)日：2024-04-04

申请号：US18321991

申请日：2023-05-23

申请人： Gabriel Cerron Calle ,  Ana dos Santos Fajardo ,  Sergio Garcia-Segura ,  Carlos M. Sanchez

发明人： Gabriel Cerron Calle ,  Ana dos Santos Fajardo ,  Sergio Garcia-Segura ,  Carlos M. Sanchez

IPC分类号： C25B11/077 ,  C25B1/27 ,  C25B11/031 ,  C25B11/061

CPC分类号： C25B11/077 ,  C25B1/27 ,  C25B11/031 ,  C25B11/061

摘要： A nanocomposite electrode includes a porous copper substrate, Co3O4 and/or Cu/Co(OH)x nanoparticles electrolytically deposited on the porous copper substrate. Fabricating the nanocomposite electrode includes contacting the porous copper substrate with a solution comprising cobalt, and electrodepositing the cobalt on the porous copper substrate to yield the nanocomposite electrode. Reducing nitrate to ammonia includes contacting the nanocomposite electrode with an aqueous solution comprising nitrate, and electrocatalytically reducing the nitrate to yield ammonia.

公开(公告)号：US11932951B2

公开(公告)日：2024-03-19

申请号：US16641007

申请日：2018-10-01

申请人： HALDOR TOPSØE A/S

发明人： John Bøgild Hansen

IPC分类号： C25B1/04 ,  C25B1/27

CPC分类号： C25B1/04 ,  C25B1/27

摘要： In a method for generating ammonia synthesis gas by electrolysis, comprising feeding a mixture of steam and compressed air into the first of a series of electrolysis units and passing the outlet from one electrolysis unit to the inlet of the next electrolysis unit together with air, the electrolysis units are run in endothermal mode and the nitrogen part of the synthesis gas is provided by burning the hydrogen produced by steam electrolysis by air in or between the electrolysis units. The electrolysis units are preferably solid oxide electrolysis cell (SOEC) stacks.

公开(公告)号：US20240052502A1

公开(公告)日：2024-02-15

申请号：US18248167

申请日：2021-10-07

申请人： NewSouth Innovations Pty Limited ,  The University of Sydney

发明人： Emma Lovell ,  Rose Amal ,  Rahman Daiyan ,  Rouhollah Jalili ,  Patrick J. Cullen ,  Hassan Masood ,  Jing Sun ,  David Alam ,  Tianqi Zhang ,  Renwu Zhou

IPC分类号： C25B1/27 ,  C25B1/50 ,  C25B15/027 ,  C25B15/031 ,  C25B11/031 ,  C25B11/061 ,  C25B11/075

CPC分类号： C25B1/27 ,  C25B1/50 ,  C25B15/027 ,  C25B15/031 ,  C25B11/031 ,  C25B11/061 ,  C25B11/075

摘要： A method of reducing a gaseous compound, for example, nitrogen or carbon dioxide, the method comprising the steps of subjecting the gaseous compound to plasma forming conditions to form a plasma; contacting the plasma with water or an electrolyte at a plasma-water or electrolyte-water interface, thereby to provide a dissolved plasma derived species; and electrocatalytically reducing said dissolved plasma derived species to provide a reduced compound. The plasma may for example be generated by a combination of glow discharge and spark discharge in a configuration of a pin-to-liquid with no enclosure, pin-to-liquid with nozzle enclosure, or a pin-to-liquid with a column bubbler enclosure. A catalyst, such as transition metal, maybe added, advantageously in the form of a nano structured catalyst.

公开(公告)号：US11885029B2

公开(公告)日：2024-01-30

申请号：US16788656

申请日：2020-02-12

申请人： Georgia Tech Research Corporation

发明人： Mohammadreza Nazemi ,  Mostafa A. El-Sayed

IPC分类号： C25B1/00 ,  C25B15/08 ,  C25B15/02 ,  C25B9/65 ,  C25B11/081 ,  C25B1/27

CPC分类号： C25B1/00 ,  C25B1/27 ,  C25B9/65 ,  C25B11/081 ,  C25B15/02 ,  C25B15/08

摘要： An exemplary embodiment of the present invention provides a system for forming ammonia, the system comprising: an anode; a cathode in electrical communication with the anode; and a catalyst material positioned in an electrical communication pathway between the cathode and the anode, the catalyst material comprising a plurality of nanoparticles comprising at least one of a conductor and a semiconductor, each of the nanoparticles comprising an interior cavity, wherein the system is configured to use nitrogen and water to generate ammonia.

公开(公告)号：US11846033B2

公开(公告)日：2023-12-19

申请号：US17323185

申请日：2021-05-18

申请人： Yingwen Cheng ,  Ke Lu

发明人： Yingwen Cheng ,  Ke Lu

IPC分类号： C25B11/075 ,  C25B1/27 ,  C25B9/19 ,  C25B11/052 ,  C25B1/50 ,  C01G39/06 ,  C25B11/065

CPC分类号： C25B11/075 ,  C01G39/06 ,  C25B1/27 ,  C25B1/50 ,  C25B9/19 ,  C25B11/052 ,  C25B11/065

摘要： An iron-containing Chevrel phase material, contains iron and Mo6S8 clusters, in particular an iron-containing Chevrel phase material having a formula FexMo6S8, wherein 2≤x≤4. The iron-containing Chevrel phase provides an efficient catalyst for the electrochemical production of ammonia from water and nitrogen gas.

公开(公告)号：US20230340679A1

公开(公告)日：2023-10-26

申请号：US18304149

申请日：2023-04-20

申请人： Wichita State University

发明人： Shuang GU ,  Nguon Kien HA

IPC分类号： C25B11/075 ,  C25B1/27 ,  C25B11/052 ,  C25B11/056 ,  C25B11/061 ,  C25B11/042 ,  C25B11/03

CPC分类号： C25B11/075 ,  C25B1/27 ,  C25B11/052 ,  C25B11/056 ,  C25B11/061 ,  C25B11/042 ,  C25B11/03 ,  C25D3/12

摘要： Processes for converting nitrate to ammonia are described. Nitrate is electrochemically converted in the presence of a catalyst to form a product comprising ammonia. The catalyst comprises cobalt on a support, where the support is in the form of a foil, mesh, cloth, gauze, sponge, and combinations thereof. The catalyst may alternatively comprise a cobalt in the form of a foil, mesh, cloth, gauze, sponge, and combinations thereof.

公开(公告)号：US11788196B2

公开(公告)日：2023-10-17

申请号：US18176676

申请日：2023-03-01

申请人： Jiangnan University

发明人： Tianxi Liu ,  Kaibin Chu ,  Feili Lai

IPC分类号： C25B11/077 ,  C25B1/27 ,  C01B35/12

CPC分类号： C25B11/0773 ,  C01B35/128 ,  C25B1/27 ,  C01P2002/34 ,  C01P2002/50 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2006/40

摘要： The present disclosure discloses an ABO3 type high-entropy perovskite Bax(FeCoNiZrY)0.2O3-δ electrocatalytic material and a preparation method thereof, belonging to the technical field of electrocatalytic materials. The electrocatalytic material is prepared by taking hydrated cobalt nitrate, hydrated ferric nitrate, hydrated nickel nitrate, barium nitrate, hydrated yttrium nitrate, hydrated zirconium nitrate and polyacrylonitrile staple fibers as raw materials through processes of liquid phase chelation, gelation, calcination, etc. The prepared high-entropy perovskite Bax(FeCoNiZrY)0.2O3-δ electrocatalytic material can release more electrochemical active sites due to its special nanostructure, thus showing better electrocatalytic activity. Meanwhile, by adjusting the stoichiometric ratio of A/B-site metals, the electronic structure change of five metals in a catalytic center and the change of an oxygen vacancy content are realized, and the purpose of adjusting and optimizing the nitrogen reduction performance is achieved, so that the electrocatalytic material has excellent electrocatalytic conversion of nitrogen gas into ammonia gas.

公开(公告)号：US20230287585A1

公开(公告)日：2023-09-14

申请号：US18307289

申请日：2023-04-26

申请人： OHIO STATE INNOVATION FOUNDATION

发明人： Umit Ozkan ,  Seval Gunduz ,  Dhruba Jyoti Deka

IPC分类号： C25B11/069 ,  C25B1/00 ,  C25B13/04 ,  C01G51/00 ,  C01G53/00 ,  C04B35/58 ,  C04B35/26 ,  C25B9/19 ,  C25B11/051 ,  C25B11/077 ,  C25B1/27 ,  C25B11/047 ,  C01G49/00 ,  C25B9/23 ,  C25B13/07

CPC分类号： C25B11/069 ,  C25B1/00 ,  C25B13/04 ,  C01G51/70 ,  C01G53/70 ,  C04B35/58042 ,  C04B35/2633 ,  C25B9/19 ,  C04B35/2641 ,  C25B11/051 ,  C25B11/0773 ,  C25B1/27 ,  C25B11/047 ,  C01G49/009 ,  C25B9/23 ,  C25B13/07 ,  C04B2235/3274 ,  C01P2002/34 ,  C01P2002/50 ,  C01P2006/40 ,  C04B2235/3852

摘要： Disclosed herein are doped perovskite oxides. The doped perovskite oxides may be used as a cathode material in an electrochemical cell to electrochemically generate ammonia from N2. The doped perovskite oxides may be combined with nitride compounds, for instance iron nitride, to further increase the efficiency of the ammonia production.

公开(公告)号：US20230272541A1

公开(公告)日：2023-08-31

申请号：US18006297

申请日：2021-07-30

申请人： MONASH UNIVERSITY

发明人： Douglas R. MACFARLANE ,  Alexandr Nikolaevich SIMONOV ,  Bryan Harry Rahmat SURYANTO ,  Karolina MATUSZEK ,  Pavel CHEREPANOV

IPC分类号： C25B1/27 ,  C01C1/02 ,  C25B1/50 ,  C25B9/05 ,  C25B9/19 ,  C25B15/08 ,  C25B15/029

CPC分类号： C25B1/27 ,  C01C1/026 ,  C25B1/50 ,  C25B9/05 ,  C25B9/19 ,  C25B15/087 ,  C25B15/029

摘要： The invention provides a method of continuous electrochemical dinitrogen reduction to produce ammonia, the method comprising: supplying dinitrogen to an electrochemical cell comprising an electrolyte in contact with at least a cathode; introducing protons to the electrolyte by anodic oxidation of a hydrogen-containing species; and cathodically reducing the dinitrogen in the presence of a metal selected from lithium, magnesium, calcium, strontium, barium, zinc, aluminium and vanadium to produce ammonia, wherein the electrolyte comprises a cationic proton carrier capable of reversible deprotonation to form a neutral proton acceptor, wherein the neutral proton acceptor is an ylide.