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EP 4 522 784 A1

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(43) Date of publication: 19.03.2025 Bulletin 2025/12 (21) Application number: 23726080.7 (22) Date of filing: 10.05.2023

(51) International Patent Classification (IPC):  C25B 1/23(2021.01) C25B 3/26(2021.01) C25B 11/052(2021.01) C25D 3/38(2006.01) C25D 5/34(2006.01) C25D 5/00(2006.01) C25B 3/09(2021.01) C25B 11/032(2021.01) C25B 11/085(2021.01) C25D 5/10(2006.01) C25D 5/48(2006.01) C25D 7/00(2006.01) (52) Cooperative Patent Classification (CPC): C25B 1/23; C25B 3/09; C25B 3/26; C25B 11/032; C25B 11/052; C25B 11/085; C25D 5/10; C25D 3/38; C25D 5/48; C25D 7/00; C25D 5/605; C25D 3/46; C25D 3/54; C25D 3/22; C25D 3/30 (86) International application number: PCT/EP2023/062517 (87) International publication number: WO 2023/217917 (16.11.2023 Gazette 2023/46)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 13.05.2022 EP 22305716 (71) Applicants: Centre National de la Recherche Scientifique 75016 Paris (FR) UNIVERSITE DE MONTPELLIER 34090 Montpellier (FR) Ecole Nationale Supérieure de Chimie de Montpellier 34090 Montpellier (FR)

(72) Inventors: VOIRY, Damien 34000 MONTPELLIER (FR) WU, Huali 34090 MONTPELLIER (FR) (74) Representative: Novagraaf Technologies  Bâtiment O2 2, rue Sarah Bernhardt CS90017 92665 Asnières-sur-Seine Cedex 92665 Asnières-sur-Seine Cedex (FR)