Figures of merit determined from highest chronoamperometric measurements under continuous visible light irradiation. Additional measurements are available in Table S4 in ESI.

	Dyad loading (nmol cm−2)	n(H2) (nmol)	TON	F.E. (%)
NiO|T1-Coa	8.2	5.8	<2	8
NiO|T2R-Coa	7.5	6.9	<2	12
NiO|AM1-Cob	3.0	86	30	16
1.5% Li–NiO|AM1-Cob	0.6	27	45	20

^aOver 4 hours; value corresponding to the amount of H₂ measured in the headspace.²³

^bOver 2 hours.