US 11,851,773 B2
Use of polyoxometalate mediators
Leroy Cronin, Glasgow (GB); Mark Symes, Glasgow (GB); and Jia-Jia Chen, Glasgow (GB)
Assigned to The University Court of the University of Glasgow, Glasgow (GB)
Filed by The University Court of the University of Glasgow, Strthclyde (GB)
Filed on Dec. 21, 2022, as Appl. No. 18/086,364.
Application 18/086,364 is a continuation of application No. 16/964,557, granted, now 11,572,629, previously published as PCT/EP2019/051807, filed on Jan. 24, 2019.
Claims priority of application No. 1801170 (GB), filed on Jan. 24, 2018.
Prior Publication US 2023/0183868 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/02 (2006.01); C25B 1/04 (2021.01); H01M 8/18 (2006.01)
CPC C25B 1/04 (2013.01) [H01M 8/188 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method for producing hydrogen, the method comprising the steps of:
(i) reducing a mediator by four or more electrons to yield a reduced mediator;
(ii) oxidising a reduced mediator to yield a mediator, and reducing protons to yield hydrogen;
wherein the reduced mediator of step (i) is used as the reduced mediator of step (ii), or the mediator of step (ii) is used as the mediator of step (i);
wherein the mediator in step (i) is (a) reduced by five or more electrons and/or (b) provided in an aqueous electrolyte solution at a concentration of at least 2 mM.