(19)

(11)

EP 4 577 687 A1

(12)

(43) Date of publication: 02.07.2025 Bulletin 2025/27 (21) Application number: 23855891.0 (22) Date of filing: 23.08.2023

(51) International Patent Classification (IPC):  C25B 9/60(2021.01) C25B 9/17(2021.01) C25B 15/00(2006.01) C25B 1/04(2021.01) C25B 9/65(2021.01) H10N 30/00(2023.01) (52) Cooperative Patent Classification (CPC): C25B 1/04; C25B 9/60; C25B 1/50; C25B 9/19; C25B 9/07; Y02E 60/36 (86) International application number: PCT/AU2023/050811 (87) International publication number: WO 2024/040295 (29.02.2024 Gazette 2024/09)

(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: 23.08.2022 AU 2022902403 (71) Applicant: Royal Melbourne Institute of Technology Melbourne, Victoria 3000 (AU)	(72) Inventors: REZK, Amgad Melbourne, Victoria 3000 (AU) YEO, Leslie Melbourne, Victoria 3000 (AU) EHRNST, Yemima Melbourne, Victoria 3000 (AU) (74) Representative: Marks & Clerk LLP  15 Fetter Lane London EC4A 1BW London EC4A 1BW (GB)