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公开(公告)号：US20250122631A1
公开(公告)日：2025-04-17
申请号：US18567599
申请日：2022-05-25
Applicant: MONASH UNIVERSITY
Inventor： Douglas R. MACFARLANE , Alexandr Nikolaevich SIMONOV , Hoang-Long DU
Abstract: The invention provides a method of reducing dinitrogen to produce ammonia, the method comprising: contacting a cathode of an electrochemical cell with an electrolyte comprising: (i) a metal cation selected from the group consisting of lithium, magnesium, calcium, strontium, barium, zinc, aluminium, vanadium and combinations thereof, wherein the metal cation is present at a concentration of greater than 0.5 mol/L in the electrolyte, (ii) one or more anions comprising at least one negative ion selected from the group consisting of fluorinated sulfonyl imides, fluorinated sulfonyl methides and combinations thereof, (iii) a proton carrier; and (iv) optionally, at least one phosphonium cation, wherein the combined amount of the metal cation and the optional at least one phosphonium cation is greater than 1 mol/L in the electrolyte; supplying dinitrogen to the electrochemical cell for cathodic reduction; and applying a potential at the cathode sufficient to reduce the dinitrogen, thereby producing ammonia.
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公开(公告)号：US20210238756A1
公开(公告)日：2021-08-05
申请号：US16972160
申请日：2019-06-27
Applicant: MONASH UNIVERSITY
Inventor： Douglas R. MACFARLANE , Bryan Harry Rahmat SURYANTO , Dabin WANG , Hoang-Long DU
IPC: C25B11/054 , C25B1/27 , C25B11/057 , C25B11/081
Abstract: The invention provides a cathode for the nitrogen reduction reaction, comprising an electrically conductive substrate and an electrocatalytic composition on the substrate, wherein the electrocatalytic composition comprises: a support material present in one or more crystalline phases; and metallic clusters dispersed on the support material, the metallic clusters comprising at least one metal selected from ruthenium, iron, rhodium, iridium and molybdenum, wherein at least 80 mass % of the support material is present in a semiconductive crystalline phase having a conduction band minimum energy below (more positive than) −0.3 V relative to the normal hydrogen electrode (NHE).
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公开(公告)号：US20230272541A1
公开(公告)日：2023-08-31
申请号：US18006297
申请日：2021-07-30
Applicant: MONASH UNIVERSITY
Inventor： Douglas R. MACFARLANE , Alexandr Nikolaevich SIMONOV , Bryan Harry Rahmat SURYANTO , Karolina MATUSZEK , Pavel CHEREPANOV
CPC classification number: C25B1/27 , C01C1/026 , C25B1/50 , C25B9/05 , C25B9/19 , C25B15/087 , C25B15/029
Abstract: 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.
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公开(公告)号：US20220396491A1
公开(公告)日：2022-12-15
申请号：US17775417
申请日：2020-12-03
Applicant: MONASH UNIVERSITY
IPC: C01C1/02 , C01B21/09 , C01B21/083 , C25B1/26 , C25B15/08 , C25B11/081 , C25B11/089
Abstract: The invention provides a method of reducing dinitrogen to produce at least one haloamine compound, the method comprising: contacting a cathode comprising a dinitrogen-activating electrocatalytic composition with an electrolyte; providing dinitrogen, a reducible source of halogen and a source of hydrogen for reaction at the cathode; and applying a potential at the cathode sufficient to reduce the dinitrogen on the dinitrogen-activating electrocatalytic composition in the presence of the reducible source of halogen and the source of hydrogen, thereby producing at least one haloamine compound.
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