Photocatalytic CO2 Reduction by 1 (2 μM) in CO2-Saturated Aqueous CH3CN Solutions

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< Light-Driven Reduction of CO2 to CO in Water with a Cobalt Molecular Catalyst and an Organic Sensitizer
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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

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEOA

0.15

MeCN

H2O


100/0 450 2332 106 1370 61.2%; 0%; 2.8%; 36.0%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEOA

0.15

MeCN

H2O


95/5 450 6228 304 2441 69.4%; 0%; 3.4%; 27.2%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEOA

0.15

MeCN

H2O


90/10 450 14691 283 1097 91.4%; 0%; 1.8%; 6.8%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEOA

0.15

MeCN

H2O


85/15 450 15822 220 1147 92.0%; 0%; 1.3%; 6.7%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEOA

0.15

MeCN

H2O


80/20 450 18989 227 1215 92.9%; 0%; 1.1%; 5.9%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEOA

0.15

MeCN

H2O


80/20 Hg 450 19646 226 415 96.8%; 0%; 1.1%; 2.0%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEA

0.15

MeCN

H2O


100/0 450 183 9 419 30.0%; 0%; 1.5%; 68.6%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEA

0.15

MeCN

H2O


95/5 450 612 202 51 70.8%; 0%; 23.4%; 5.9%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEA

0.15

MeCN

H2O


90/10 450 515 253 46 63.3%; 0%; 31.1%; 5.7%; 0%


No

[Co(qpy)(H2O)2][ClO4]2

0.002

Molecule:100797

0.2

BIH

0.1

TEA

0.15

MeCN

H2O


85/15 450 3171 498 179 82.4%; 0%; 12.9%; 4.7%; 0%


No