Solvent effect study between DMA DMF and acetonitrile

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< An integrated Re(I) photocatalyst and sensitizer that activates the formation of formic acid from reduction of CO2
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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


[Ru(bpy)3][PF6]

0.8

TEOA


DMA

TEOA


4:1 405 nm 24 1.75 12.5 87 0%; 0%; 12.3%; 87.7%; 0%

87

No


[Ru(bpy)3][PF6]

0.8

TEOA


DMF

TEOA


4:1 405 nm 24 2 15 88 0%; 0%; 11.8%; 88.2%; 0%

88

No


[Ru(bpy)3][PF6]

0.8

TEOA


MeCN

TEOA


4:1 405 nm 24 1.5 2.5 63 0%; 0%; 37.5%; 62.5%; 0%

63

No

[Re(bpy)2(CO)2][OTf]

0.8


TEOA


DMA

TEOA


4:1 405 nm 24 10.3 100 n/a

100

No

[Re(bpy)2(CO)2][OTf]

0.8

[Ru(bpy)3][PF6]

0.8

TEOA


DMA

TEOA


4:1 405 nm 24 1.5 52 97 0%; 0%; 2.8%; 97.2%; 0%

97

No

[Re(bpy)2(CO)2][OTf]

0.8


TEOA


DMF

TEOA


4:1 405 nm 24 0.8 10.8 93 0%; 0%; 6.9%; 93.1%; 0%

93

No

[Re(bpy)2(CO)2][OTf]

0.8

[Ru(bpy)3][PF6]

0.8

TEOA


DMF

TEOA


4:1 405 nm 24 2.8 66 96 0%; 0%; 4.1%; 95.9%; 0%

96

No

[Re(bpy)2(CO)2][OTf]

0.8

[Ru(bpy)3][PF6]

0.8

TEOA


MeCN

TEOA


4:1 405 nm 24 n/a


No

[Re(bpy)2(CO)2][OTf]

0.8

[Ru(bpy)3][PF6]

0.8

TEOA


MeCN

TEOA


4:1 405 nm 24 2.8 11.5 80 0%; 0%; 19.6%; 80.4%; 0%

80

No