Photocatalytic reduction of CO2: conditions optimization

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< Toward Visible-Light Photochemical CO2‑to-CH4 Conversion in Aqueous Solutions Using Sensitized Molecular Catalysis
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investigation
Molecular process, Photocatalytic CO2 conversion experiments
"Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property."Molecule:100865" is not in the list (nitrogen, argon, CO2, CO, O2, H2, none) of allowed values for the "Feedstock gas" property.
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

Fe(pTMAPP)Cl5

0.002

[Ir(ppy)2(bpy)][PF6]

0.2

TEA

0.05


MeCN



Molecule:100865 > 420 47 178 32 103 56.9%; 10.2%; 32.9%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

[Ir(ppy)2(bpy)][PF6]

0.2

TEOA

0.05


MeCN



Molecule:100865 > 420 47 134 23 67 59.8%; 10.3%; 29.9%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

[Ir(ppy)2(bpy)][PF6]

0.2

DIPEA

0.05


MeCN



Molecule:100865 > 420 47 151 24 77 59.9%; 9.5%; 30.6%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

[Ir(ppy)2(bpy)][PF6]

0.2

TEA

0.05


MeCN

H2O


Molecule:100865 > 420 47 24 3 5 75.0%; 9.4%; 15.6%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

[Ir(ppy)2(bpy)][PF6]

0.2

TEOA

0.05


MeCN

H2O


Molecule:100865 > 420 47 19 3 4 73.1%; 11.5%; 15.4%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

[Ir(ppy)2(bpy)][PF6]

0.2

DIPEA

0.05


MeCN

H2O


Molecule:100865 > 420 47 20 3 4 74.1%; 11.1%; 14.8%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

Ir(ppy)3

0.2

TEA

0.05


MeCN



Molecule:100865 > 420 47 198 31 24 78.3%; 12.3%; 9.5%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

Ir(ppy)3

0.2

TEA

0.05


MeCN



Molecule:100865 > 420 47 89 18 0%; 83.2%; 16.8%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

Ir(ppy)3

0.2

TEA

0.05


MeCN



TFE 0.5 Molecule:100865 > 420 47 100 19 0%; 84.0%; 16.0%; 0%; 0%


Yes

Fe(pTMAPP)Cl5

0.002

Ir(ppy)3

0.2

TEA

0.05


MeCN



TFE 0.5 Molecule:100865 > 420 102 195 45 0%; 81.3%; 18.8%; 0%; 0%


Yes