(19)
(11) EP 4 474 529 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.03.2025 Bulletin 2025/10

(43) Date of publication A2:
11.12.2024 Bulletin 2024/50

(21) Application number: 24207009.2

(22) Date of filing: 07.09.2018
(51) International Patent Classification (IPC): 
C25B 3/07(2021.01)
C25B 3/26(2021.01)
C25B 11/089(2021.01)
 C25B 3/25(2021.01)
C25B 11/052(2021.01)
C25B 11/091(2021.01)
(52) Cooperative Patent Classification (CPC):
C25B 3/25; C25B 11/091; C25B 3/07; C25B 3/26; C25B 11/052; C25B 11/089
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 07.09.2017 US 201762555503 P
22.03.2018 US 201862646816 P

(62) Application number of the earlier application in accordance with Art. 76 EPC:
18853747.6 / 3679177

(71) Applicant: The Trustees of Princeton University
Princeton, NJ 08544 (US)

(72) Inventors:
  • BOCARSLY, Andrew
    Plainsboro, 08536 (US)
  • PARIS, Aubrey
    Delran, 08075 (US)
  • FRANCIS, Sonja
    Princeton, 08540 (US)
  • CHU, An
    Amherst, 01002 (US)

(74) Representative: Greenwoods 
Queens House 55-56 Lincoln's Inn Fields
London WC2A 3LJ
London WC2A 3LJ (GB)

   


(54) BINARY ALLOYS AND OXIDES THEREOF FOR ELECTROCATALYTIC REDUCTION OF CARBON DIOXIDE


(57) In one aspect, systems for providing oxygenated organic products are described. In some embodiments, a system comprises an electrochemical cell including an electrolyte solution comprising CO2, and an electrode comprising an alloy and/or mixture of metal oxides. The electrode comprises an electrocatalytic site for reduction of CO2 to CO, wherein CO is incorporated into the oxygenated organic products. In some embodiments, the alloy comprises at least one of a transition metal and post-transition metal. Moreover, metal oxides of the electrode can comprise at least one of a transition metal oxide and post-transition metal oxide.







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