Results for different electron donors and proton donors

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< Durable Solar-Powered Systems with Ni-Catalysts for Conversion of CO2 or CO to CH4
investigation
Molecular process, Photocatalytic CO2 conversion experiments
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

[Ni(bpy)-(MeNHC)2][PF6]2

0.000002

Ir(ppy)3

0.1

BIH

0.01


MeCN



TEA CO2 solar spectrum 72 108000 4000 278000 27.7%; 1.0%; 71.3%; 0%; 0%


test Yes

[Ni(bpy)-(MeNHC)2][PF6]2

0.000002

Ir(ppy)3

0.1

BIH

0.01


MeCN



TEA, H2O CO2 solar spectrum 72 31000 320000 8.8%; 0%; 91.2%; 0%; 0%


Yes

[Ni(bpy)-(MeNHC)2][PF6]2

0.000002

Ir(ppy)3

0.1

TEA


MeCN



CO2 solar spectrum 72 130000 29000 4900000 2.6%; 0.6%; 96.9%; 0%; 0%


Yes

[Ni(bpy-bNHCEt)][PF6]2

0.000002

Ir(ppy)3

0.1

BIH

0.01


MeCN



TEA CO2 solar spectrum 72 310000 33000 90.4%; 0%; 9.6%; 0%; 0%


Yes

[Ni(bpy-bNHCEt)][PF6]2

0.000002

Ir(ppy)3

0.1

BIH

0.01


MeCN



TEA, H2O CO2 solar spectrum 72 175000 19000 29000 78.5%; 8.5%; 13.0%; 0%; 0%


Yes

[Ni(bpy-bNHCEt)][PF6]2

0.000002

Ir(ppy)3

0.1

TEA


MeCN



CO2 solar spectrum 72 9000 36000 20.0%; 0%; 80.0%; 0%; 0%


Yes

[Ni(bpy-bNHCMe)][PF6]2

0.000002

Ir(ppy)3

0.1

BIH

0.01


MeCN



TEA CO2 solar spectrum 72 76000 17000 81.7%; 0%; 18.3%; 0%; 0%


Yes

[Ni(bpy-bNHCMe)][PF6]2

0.000002

Ir(ppy)3

0.1

BIH

0.01


MeCN



TEA, H2O CO2 solar spectrum 72 8000 5000 34000 17.0%; 10.6%; 72.3%; 0%; 0%


Yes

[Ni(bpy-bNHCMe)][PF6]2

0.000002

Ir(ppy)3

0.1

TEA


MeCN



CO2 solar spectrum 72 5000 1000 15000 23.8%; 4.8%; 71.4%; 0%; 0%


Yes