Control experiments

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cat cat conc [µM] PS PS conc [mM] e-D e-D conc [M] H-D H-D conc [M] solvent A solvent B solvent C solv A/B/C additives additives conc [M] feedstock gas feedstock volume intensity pH T [°C] λexc [nm] t [h] TON CO TOF CO Φ CO [%] TON CH4 TOF CH4 Φ CH4 [%] TON H2 TOF H2 Φ H2 [%] TON HCOOH TOF HCOOH Φ HCOOH [%] TON MeOH TOF MeOH Φ MeOH [%] selectivity [%] [CO;CH4;H2;HCOOH;MeOH] Φ all [%] Details include

[Ir(mesbpy-(PCy2)2)][BPh4]

0.02




DMA

H2O


9:1 Hg 0.17 CO2 25 >400 24 69 0.9 291 19.1%; 0%; 0.2%; 80.6%; 0%


No

[Ir(mesbpy-(PCy2)2)][BPh4]

0.02




DMA

H2O


9:1 CO2 25 >400 24 62 0.8 323 16.1%; 0%; 0.2%; 83.7%; 0%


No

[Ir(mesbpy-(PCy2)2)][BPh4]

0.02




DMA



CO2 25 >400 24 3.9 0.9 188 2.0%; 0%; 0.5%; 97.5%; 0%


No

[Ir(mesbpy-(PCy2)2)][BPh4]

0.02




DMA

H2O

TEOA

9:1:2 CO2 25 >400 24 57 5 115 32.2%; 0%; 2.8%; 65.0%; 0%


No