(19)

(11)

EP 4 182 069 A1

(12)

(43) Date of publication: 24.05.2023 Bulletin 2023/21 (21) Application number: 21749547.2 (22) Date of filing: 15.07.2021

(51) International Patent Classification (IPC):  B01J 19/12(2006.01) B01J 19/00(2006.01) B01J 19/24(2006.01) (52) Cooperative Patent Classification (CPC): B01J 19/12; B01J 19/242; B01J 19/006; B01J 2219/00765; B01J 19/123 (86) International application number: PCT/EP2021/069749 (87) International publication number: WO 2022/013348 (20.01.2022 Gazette 2022/03)

(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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 16.07.2020 GB 202010980 (71) Applicant: Heriot-Watt University Edinburgh EH14 4AS (GB)	(72) Inventor: NI, Xiong-Wei Edinburgh EH14 4AS (GB) (74) Representative: Lawrie IP Limited  310 St. Vincent Street Glasgow G2 5RG Glasgow G2 5RG (GB)