Photochemical Reduction of Carbon Dioxide to Formic Acid using Ruthenium(II)-Based Catalysts and Visible Light: Difference between revisions
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{{BaseTemplate}} | {{BaseTemplate}} | ||
[[Category:Photocatalytic CO2 conversion to HCOOH]] | [[Category:Photocatalytic CO2 conversion to HCOOH]] | ||
{{ | {{DOI|doi=10.1002/cctc.201500494 }} | ||
=== Abstract === | === Abstract === | ||
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M V30 END CTAB | M V30 END CTAB | ||
M END | M END | ||
</chemform><chemform smiles="C1C=CN2[Ru+2]([C-]#[O+])([ | </chemform><chemform smiles="C1C=CN2[Ru+2]([C-]#[O+])([Cl-])3(N4C=CC=CC=4C4C=CC=CN=43)N3=CC=CC=C3C=2C=1.F[P-](F)(F)(F)(F)F" inchikey="QJMAHGUIKKRXBN-UHFFFAOYSA-M" inchi="1S/2C10H8N2.CO.ClH.F6P.Ru/c2*1-3-7-11-9(5-1)10-6-2-4-8-12-10;1-2;;1-7(2,3,4,5)6;/h2*1-8H;;1H;;/q;;;;-1;+2/p-1" float="none" width="200" height="200"> | ||
-INDIGO- | -INDIGO-02262411182D | ||
0 0 0 0 0 0 0 0 0 0 0 V3000 | 0 0 0 0 0 0 0 0 0 0 0 V3000 | ||
Line 172: | Line 171: | ||
M V30 COUNTS 35 39 0 0 0 | M V30 COUNTS 35 39 0 0 0 | ||
M V30 BEGIN ATOM | M V30 BEGIN ATOM | ||
M V30 1 C | M V30 1 C 7.92242 -4.28512 0.0 0 | ||
M V30 2 C | M V30 2 C 9.3939 -4.28472 0.0 0 | ||
M V30 3 C | M V30 3 C 8.65956 -3.85983 0.0 0 | ||
M V30 4 N | M V30 4 N 9.3939 -5.13594 0.0 0 | ||
M V30 5 C | M V30 5 C 7.92242 -5.13976 0.0 0 | ||
M V30 6 C | M V30 6 C 8.66141 -5.56073 0.0 0 | ||
M V30 7 C | M V30 7 C 10.1306 -3.85985 0.0 0 | ||
M V30 8 C | M V30 8 C 10.8657 -2.58515 0.0 0 | ||
M V30 9 C | M V30 9 C 10.1307 -3.00882 0.0 0 | ||
M V30 10 C | M V30 10 C 11.603 -3.0106 0.0 0 | ||
M V30 11 N | M V30 11 N 10.8708 -4.28701 0.0 0 | ||
M V30 12 C | M V30 12 C 11.6048 -3.85737 0.0 0 | ||
M V30 13 C | M V30 13 C 7.94368 -6.81514 0.0 0 | ||
M V30 14 N | M V30 14 N 9.41516 -6.81473 0.0 0 | ||
M V30 15 C | M V30 15 C 8.68081 -6.38984 0.0 0 | ||
M V30 16 C | M V30 16 C 9.41516 -7.66595 0.0 0 | ||
M V30 17 C | M V30 17 C 7.94368 -7.66977 0.0 0 | ||
M V30 18 C | M V30 18 C 8.68267 -8.09074 0.0 0 | ||
M V30 19 C | M V30 19 C 10.1521 -8.09046 0.0 0 | ||
M V30 20 C | M V30 20 C 11.6236 -8.08764 0.0 0 | ||
M V30 21 N | M V30 21 N 10.8885 -7.66395 0.0 0 | ||
M V30 22 C | M V30 22 C 11.625 -8.93887 0.0 0 | ||
M V30 23 C | M V30 23 C 10.1535 -8.94508 0.0 0 | ||
M V30 24 C | M V30 24 C 10.8931 -9.36485 0.0 0 | ||
M V30 25 Ru | M V30 25 Ru 10.8641 -5.90948 0.0 0 CHG=2 | ||
M V30 26 | M V30 26 Cl 12.2323 -4.95054 0.0 0 CHG=-1 | ||
M V30 27 C | M V30 27 C 12.2815 -6.62253 0.0 0 CHG=-1 | ||
M V30 28 O | M V30 28 O 13.1332 -7.1143 0.0 0 CHG=1 | ||
M V30 29 F | M V30 29 F 13.8741 -4.45053 0.0 0 | ||
M V30 30 P | M V30 30 P 14.7258 -3.95877 0.0 0 CHG=-1 | ||
M V30 31 F | M V30 31 F 15.5776 -4.45053 0.0 0 | ||
M V30 32 F | M V30 32 F 14.7258 -2.97524 0.0 0 | ||
M V30 33 F | M V30 33 F 13.8741 -3.46701 0.0 0 | ||
M V30 34 F | M V30 34 F 15.5776 -3.46701 0.0 0 | ||
M V30 35 F | M V30 35 F 14.7258 -4.9423 0.0 0 | ||
M V30 END ATOM | M V30 END ATOM | ||
M V30 BEGIN BOND | M V30 BEGIN BOND | ||
Line 251: | Line 250: | ||
M V30 END CTAB | M V30 END CTAB | ||
M END | M END | ||
</chemform><chemform smiles="C1C=CN2[Ru]([ | </chemform><chemform smiles="C1C=CN2[Ru+2]([C-]#[O+])(O([H])[H])3(N4C=CC=CC=4C4C=CC=CN=43)N3=CC=CC=C3C=2C=1.F[P-](F)(F)(F)(F)F.F[P-](F)(F)(F)(F)F" inchi="1S/2C10H8N2.CO.2F6P.H2O.Ru/c2*1-3-7-11-9(5-1)10-6-2-4-8-12-10;1-2;2*1-7(2,3,4,5)6;;/h2*1-8H;;;;1H2;/q;;;2*-1;;+2" inchikey="CPFZZAZNEQBLAC-UHFFFAOYSA-N" height="200px" width="300px" float="none"> | ||
-INDIGO- | -INDIGO-02152416342D | ||
0 0 0 0 0 0 0 0 0 0 0 V3000 | |||
M V30 BEGIN CTAB | |||
M V30 COUNTS 44 47 0 0 0 | |||
M V30 BEGIN ATOM | |||
M V30 1 C 5.62242 -3.98512 0.0 0 | |||
M V30 2 C 7.0939 -3.98472 0.0 0 | |||
M V30 3 C 6.35956 -3.55983 0.0 0 | |||
M V30 4 N 7.0939 -4.83594 0.0 0 | |||
M V30 5 C 5.62242 -4.83976 0.0 0 | |||
M V30 6 C 6.36141 -5.26073 0.0 0 | |||
M V30 7 C 7.83059 -3.55985 0.0 0 | |||
M V30 8 C 8.56572 -2.28515 0.0 0 | |||
M V30 9 C 7.83066 -2.70882 0.0 0 | |||
M V30 10 C 9.30303 -2.7106 0.0 0 | |||
M V30 11 N 8.57081 -3.98701 0.0 0 | |||
M V30 12 C 9.3048 -3.55737 0.0 0 | |||
M V30 13 C 5.64368 -6.51514 0.0 0 | |||
M V30 14 N 7.11516 -6.51473 0.0 0 | |||
M V30 15 C 6.38081 -6.08984 0.0 0 | |||
M V30 16 C 7.11516 -7.36595 0.0 0 | |||
M V30 17 C 5.64368 -7.36977 0.0 0 | |||
M V30 18 C 6.38267 -7.79074 0.0 0 | |||
M V30 19 C 7.85206 -7.79046 0.0 0 | |||
M V30 20 C 9.32359 -7.78764 0.0 0 | |||
M V30 21 N 8.5885 -7.36395 0.0 0 | |||
M V30 22 C 9.32497 -8.63887 0.0 0 | |||
M V30 23 C 7.85346 -8.64508 0.0 0 | |||
M V30 24 C 8.59314 -9.06485 0.0 0 | |||
M V30 25 Ru 8.56415 -5.60948 0.0 0 CHG=2 | |||
M V30 26 O 9.93229 -4.65054 0.0 0 | |||
M V30 27 C 9.98149 -6.32253 0.0 0 CHG=-1 | |||
M V30 28 O 10.8332 -6.8143 0.0 0 CHG=1 | |||
M V30 29 H 10.8388 -5.07273 0.0 0 | |||
M V30 30 H 9.84466 -3.65439 0.0 0 | |||
M V30 31 F 11.5741 -4.15053 0.0 0 | |||
M V30 32 P 12.4258 -3.65877 0.0 0 CHG=-1 | |||
M V30 33 F 13.2776 -4.15053 0.0 0 | |||
M V30 34 F 12.4258 -2.67524 0.0 0 | |||
M V30 35 F 11.5741 -3.16701 0.0 0 | |||
M V30 36 F 13.2776 -3.16701 0.0 0 | |||
M V30 37 F 12.4258 -4.6423 0.0 0 | |||
M V30 38 F 12.709 -7.35 0.0 0 | |||
M V30 39 P 13.5749 -6.85 0.0 0 CHG=-1 | |||
M V30 40 F 14.441 -7.35 0.0 0 | |||
M V30 41 F 13.5749 -5.84999 0.0 0 | |||
M V30 42 F 12.709 -6.35 0.0 0 | |||
M V30 43 F 14.441 -6.35 0.0 0 | |||
M V30 44 F 13.5749 -7.85001 0.0 0 | |||
M V30 END ATOM | |||
M V30 BEGIN BOND | |||
M V30 1 2 3 1 | |||
M V30 2 2 4 2 | |||
M V30 3 1 1 5 | |||
M V30 4 1 2 3 | |||
M V30 5 2 5 6 | |||
M V30 6 1 6 4 | |||
M V30 7 1 2 7 | |||
M V30 8 2 9 7 | |||
M V30 9 2 10 8 | |||
M V30 10 1 7 11 | |||
M V30 11 1 8 9 | |||
M V30 12 2 11 12 | |||
M V30 13 1 12 10 | |||
M V30 14 2 15 13 | |||
M V30 15 2 16 14 | |||
M V30 16 1 13 17 | |||
M V30 17 1 14 15 | |||
M V30 18 2 17 18 | |||
M V30 19 1 18 16 | |||
M V30 20 1 16 19 | |||
M V30 21 2 21 19 | |||
M V30 22 2 22 20 | |||
M V30 23 1 19 23 | |||
M V30 24 1 20 21 | |||
M V30 25 2 23 24 | |||
M V30 26 1 24 22 | |||
M V30 27 10 11 25 | |||
M V30 28 10 25 21 | |||
M V30 29 10 25 14 | |||
M V30 30 10 25 4 | |||
M V30 31 10 25 26 | |||
M V30 32 10 25 27 | |||
M V30 33 3 27 28 | |||
M V30 34 1 26 29 | |||
M V30 35 1 26 30 | |||
M V30 36 1 31 32 | |||
M V30 37 1 32 33 | |||
M V30 38 1 32 34 | |||
M V30 39 1 32 35 | |||
M V30 40 1 32 36 | |||
M V30 41 1 32 37 | |||
M V30 42 1 38 39 | |||
M V30 43 1 39 40 | |||
M V30 44 1 39 41 | |||
M V30 45 1 39 42 | |||
M V30 46 1 39 43 | |||
M V30 47 1 39 44 | |||
M V30 END BOND | |||
M V30 END CTAB | |||
M END | |||
</chemform><chemform smiles="C1C=CN2[Ru+2](O=C(C)C)(O=C(C)C)3(N4C=CC=CC=4C4C=CC=CN=43)N3=CC=CC=C3C=2C=1.F[P-](F)(F)(F)(F)F.F[P-](F)(F)(F)(F)F" inchi="1S/2C10H8N2.2C3H6O.2F6P.Ru/c2*1-3-7-11-9(5-1)10-6-2-4-8-12-10;2*1-3(2)4;2*1-7(2,3,4,5)6;/h2*1-8H;2*1-2H3;;;/q;;;;2*-1;+2" inchikey="MVHJANUNBKMKDC-UHFFFAOYSA-N" height="200px" width="300px" float="none"> | |||
-INDIGO-02262411282D | |||
0 0 0 0 0 0 0 0 0 0 0 V3000 | |||
M V30 BEGIN CTAB | |||
M V30 COUNTS 47 50 0 0 0 | |||
M V30 BEGIN ATOM | |||
M V30 1 F 12.1174 -3.75053 0.0 0 | |||
M V30 2 P 12.9691 -3.25877 0.0 0 CHG=-1 | |||
M V30 3 F 13.8209 -3.75053 0.0 0 | |||
M V30 4 F 12.9691 -2.27524 0.0 0 | |||
M V30 5 F 12.1174 -2.76701 0.0 0 | |||
M V30 6 F 13.8209 -2.76701 0.0 0 | |||
M V30 7 F 12.9691 -4.2423 0.0 0 | |||
M V30 8 F 12.0523 -6.85 0.0 0 | |||
M V30 9 P 12.9182 -6.35 0.0 0 CHG=-1 | |||
M V30 10 F 13.7843 -6.85 0.0 0 | |||
M V30 11 F 12.9182 -5.34999 0.0 0 | |||
M V30 12 F 12.0523 -5.85 0.0 0 | |||
M V30 13 F 13.7843 -5.85 0.0 0 | |||
M V30 14 F 12.9182 -7.35001 0.0 0 | |||
M V30 15 C 4.96571 -3.48512 0.0 0 | |||
M V30 16 C 6.43719 -3.48472 0.0 0 | |||
M V30 17 C 5.70285 -3.05983 0.0 0 | |||
M V30 18 N 6.43719 -4.33594 0.0 0 | |||
M V30 19 C 4.96571 -4.33976 0.0 0 | |||
M V30 20 C 5.7047 -4.76073 0.0 0 | |||
M V30 21 C 7.17388 -3.05985 0.0 0 | |||
M V30 22 C 7.90901 -1.78515 0.0 0 | |||
M V30 23 C 7.17395 -2.20882 0.0 0 | |||
M V30 24 C 8.64632 -2.2106 0.0 0 | |||
M V30 25 N 7.9141 -3.48701 0.0 0 | |||
M V30 26 C 8.64809 -3.05737 0.0 0 | |||
M V30 27 C 4.98697 -6.01514 0.0 0 | |||
M V30 28 N 6.45845 -6.01473 0.0 0 | |||
M V30 29 C 5.7241 -5.58984 0.0 0 | |||
M V30 30 C 6.45845 -6.86595 0.0 0 | |||
M V30 31 C 4.98697 -6.86977 0.0 0 | |||
M V30 32 C 5.72596 -7.29074 0.0 0 | |||
M V30 33 C 7.19535 -7.29046 0.0 0 | |||
M V30 34 C 8.66688 -7.28764 0.0 0 | |||
M V30 35 N 7.93179 -6.86395 0.0 0 | |||
M V30 36 C 8.66826 -8.13887 0.0 0 | |||
M V30 37 C 7.19675 -8.14508 0.0 0 | |||
M V30 38 C 7.93643 -8.56485 0.0 0 | |||
M V30 39 Ru 7.90744 -5.10948 0.0 0 CHG=2 | |||
M V30 40 O 9.27558 -4.15054 0.0 0 | |||
M V30 41 O 9.32346 -5.80948 0.0 0 | |||
M V30 42 C 10.1416 -3.65054 0.0 0 | |||
M V30 43 C 10.1416 -2.65054 0.0 0 | |||
M V30 44 C 11.0076 -4.15054 0.0 0 | |||
M V30 45 C 10.1895 -6.30948 0.0 0 | |||
M V30 46 C 11.0555 -5.80948 0.0 0 | |||
M V30 47 C 10.1895 -7.30948 0.0 0 | |||
M V30 END ATOM | |||
M V30 BEGIN BOND | |||
M V30 1 1 1 2 | |||
M V30 2 1 2 3 | |||
M V30 3 1 2 4 | |||
M V30 4 1 2 5 | |||
M V30 5 1 2 6 | |||
M V30 6 1 2 7 | |||
M V30 7 1 8 9 | |||
M V30 8 1 9 10 | |||
M V30 9 1 9 11 | |||
M V30 10 1 9 12 | |||
M V30 11 1 9 13 | |||
M V30 12 1 9 14 | |||
M V30 13 2 17 15 | |||
M V30 14 2 18 16 | |||
M V30 15 1 15 19 | |||
M V30 16 1 16 17 | |||
M V30 17 2 19 20 | |||
M V30 18 1 20 18 | |||
M V30 19 1 16 21 | |||
M V30 20 2 23 21 | |||
M V30 21 2 24 22 | |||
M V30 22 1 21 25 | |||
M V30 23 1 22 23 | |||
M V30 24 2 25 26 | |||
M V30 25 1 26 24 | |||
M V30 26 2 29 27 | |||
M V30 27 2 30 28 | |||
M V30 28 1 27 31 | |||
M V30 29 1 28 29 | |||
M V30 30 2 31 32 | |||
M V30 31 1 32 30 | |||
M V30 32 1 30 33 | |||
M V30 33 2 35 33 | |||
M V30 34 2 36 34 | |||
M V30 35 1 33 37 | |||
M V30 36 1 34 35 | |||
M V30 37 2 37 38 | |||
M V30 38 1 38 36 | |||
M V30 39 10 25 39 | |||
M V30 40 10 39 35 | |||
M V30 41 10 39 28 | |||
M V30 42 10 39 18 | |||
M V30 43 10 39 40 | |||
M V30 44 10 39 41 | |||
M V30 45 2 40 42 | |||
M V30 46 1 42 43 | |||
M V30 47 1 42 44 | |||
M V30 48 2 41 45 | |||
M V30 49 1 45 46 | |||
M V30 50 1 45 47 | |||
M V30 END BOND | |||
M V30 END CTAB | |||
M END | |||
</chemform><chemform smiles="C1C=CN2[Ru+2]([C-]#[O+])([H-])3(N4C=CC=CC=4C4C=CC=CN=43)N3=CC=CC=C3C=2C=1.F[P-](F)(F)(F)(F)F" inchi="1S/2C10H8N2.CO.F6P.Ru.H/c2*1-3-7-11-9(5-1)10-6-2-4-8-12-10;1-2;1-7(2,3,4,5)6;;/h2*1-8H;;;;/q;;;-1;+2;-1" inchikey="HJTHNVDYVJWKQG-UHFFFAOYSA-N" height="200px" width="300px" float="none"> | |||
-INDIGO-02262411182D | |||
0 0 0 0 0 0 0 0 0 0 0 V3000 | 0 0 0 0 0 0 0 0 0 0 0 V3000 | ||
M V30 BEGIN CTAB | M V30 BEGIN CTAB | ||
M V30 COUNTS | M V30 COUNTS 35 39 0 0 0 | ||
M V30 BEGIN ATOM | M V30 BEGIN ATOM | ||
M V30 1 C | M V30 1 C 4.57242 -3.91012 0.0 0 | ||
M V30 2 C 6. | M V30 2 C 6.0439 -3.90972 0.0 0 | ||
M V30 3 C | M V30 3 C 5.30956 -3.48483 0.0 0 | ||
M V30 4 N 6. | M V30 4 N 6.0439 -4.76094 0.0 0 | ||
M V30 5 C | M V30 5 C 4.57242 -4.76476 0.0 0 | ||
M V30 6 C | M V30 6 C 5.31141 -5.18573 0.0 0 | ||
M V30 7 C | M V30 7 C 6.78059 -3.48485 0.0 0 | ||
M V30 8 C | M V30 8 C 7.51572 -2.21015 0.0 0 | ||
M V30 9 C | M V30 9 C 6.78066 -2.63382 0.0 0 | ||
M V30 10 C | M V30 10 C 8.25303 -2.6356 0.0 0 | ||
M V30 11 N | M V30 11 N 7.52081 -3.91201 0.0 0 | ||
M V30 12 C | M V30 12 C 8.2548 -3.48237 0.0 0 | ||
M V30 13 C | M V30 13 C 4.59368 -6.44014 0.0 0 | ||
M V30 14 N 6. | M V30 14 N 6.06516 -6.43973 0.0 0 | ||
M V30 15 C | M V30 15 C 5.33081 -6.01484 0.0 0 | ||
M V30 16 C 6. | M V30 16 C 6.06516 -7.29095 0.0 0 | ||
M V30 17 C | M V30 17 C 4.59368 -7.29477 0.0 0 | ||
M V30 18 C | M V30 18 C 5.33267 -7.71574 0.0 0 | ||
M V30 19 C | M V30 19 C 6.80206 -7.71546 0.0 0 | ||
M V30 20 C | M V30 20 C 8.27359 -7.71264 0.0 0 | ||
M V30 21 N | M V30 21 N 7.5385 -7.28895 0.0 0 | ||
M V30 22 C | M V30 22 C 8.27497 -8.56387 0.0 0 | ||
M V30 23 C | M V30 23 C 6.80346 -8.57008 0.0 0 | ||
M V30 24 C | M V30 24 C 7.54314 -8.98985 0.0 0 | ||
M V30 25 Ru | M V30 25 Ru 7.51415 -5.53448 0.0 0 CHG=2 | ||
M V30 26 | M V30 26 H 8.88229 -4.57554 0.0 0 CHG=-1 | ||
M V30 27 | M V30 27 C 8.93149 -6.24753 0.0 0 CHG=-1 | ||
M V30 28 | M V30 28 O 9.78318 -6.7393 0.0 0 CHG=1 | ||
M V30 29 F 10.5241 -4.07553 0.0 0 | |||
M V30 | M V30 30 P 11.3758 -3.58377 0.0 0 CHG=-1 | ||
M V30 | M V30 31 F 12.2276 -4.07553 0.0 0 | ||
M V30 32 F 11.3758 -2.60024 0.0 0 | |||
M V30 33 F 10.5241 -3.09201 0.0 0 | |||
M V30 | M V30 34 F 12.2276 -3.09201 0.0 0 | ||
M V30 | M V30 35 F 11.3758 -4.5673 0.0 0 | ||
M V30 | |||
M V30 | |||
M V30 | |||
M V30 END ATOM | M V30 END ATOM | ||
M V30 BEGIN BOND | M V30 BEGIN BOND | ||
Line 333: | Line 538: | ||
M V30 31 10 25 26 | M V30 31 10 25 26 | ||
M V30 32 10 25 27 | M V30 32 10 25 27 | ||
M V30 33 | M V30 33 3 27 28 | ||
M V30 34 1 29 30 | M V30 34 1 29 30 | ||
M V30 35 1 | M V30 35 1 30 31 | ||
M V30 36 1 | M V30 36 1 30 32 | ||
M V30 37 1 | M V30 37 1 30 33 | ||
M V30 38 1 | M V30 38 1 30 34 | ||
M V30 39 1 35 | M V30 39 1 30 35 | ||
M V30 END BOND | M V30 END BOND | ||
M V30 END CTAB | M V30 END CTAB | ||
Line 461: | Line 661: | ||
==== Investigations ==== | ==== Investigations ==== | ||
{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name= | {{#experimentlist: |form=Photocatalytic_CO2_conversion_experiments|name=CO2 reduction experiments}} | ||
{{#experimentlist:|form=Photocatalytic_CO2_conversion_experiments|name= | {{#experimentlist: |form=Photocatalytic_CO2_conversion_experiments|name=Optimization of concentrations}} | ||
{{#experimentlist:|form=Cyclic_Voltammetry_experiments|name=Table 3 - CV}} | {{#experimentlist:|form=Cyclic_Voltammetry_experiments|name=Table 3 - CV}} | ||
Line 471: | Line 671: | ||
==== Additives ==== | ==== Additives ==== | ||
No additives were used in the described experiments. | No additives were used in the described experiments.[[Category:Publication]] |
Latest revision as of 15:15, 5 July 2024
Abstract[edit | edit source]
Summary[edit | edit source]
A photochemical reduction of CO2 to formic acid was shown using a system containing an iridium-based photosensitizer, ruthenium photocatalyst and triethanolamine as the electron donor. Turnover numbers up to 526 and a selectivity of 80% towards formic acid were observed if the reaction was performed with [Ir(ppy)2(bpy)]PF6 ([Ir(ppy)2(bpy)][PF6]) as the photosensitizer and [Ru(bpy)2(Cl)(CO)]PF6 (100837) as the catalyst. The experiments were conducted under irradiation with Hg-lamp equipped with a λ=400–700 nm filter.
Advances and special progress[edit | edit source]
The employed photocatalytic system showed activity for the photoreduction of Na2CO3 to formic acid as well. A TON of 53 was observed after 5h reaction time.
Additional remarks[edit | edit source]
Experiments using different electron and proton donors such as triethylamine (TEA) and 1-benzyl-1,4-dihydronicotinamide (BNAH) were unsuccessful as the observed activities were lower than those obtained in the presence of TEOA.
Content of the published article in detail[edit | edit source]
The article contains results for the reduction of CO2 to formic under visible-light catalysis using ruthenium complexes as catalysts, the iridium complex [Ir(ppy)2(bpy)]PF6 ([Ir(ppy)2(bpy)][PF6]) as a photosensitizer and triethanolamine as the electron donor. The catalytic system performs best (referring to the TON of HCOOH production) with [Ru(bpy)2(Cl)(CO)]PF6 (100837) as photocatalyst.
Catalysts[edit | edit source]
Ru(bpy)2Cl2 Ru(bpy)2CO3 [Ru(bpy)2ClCO][PF6] [Ru(bpy)(H2O)(CO)][PF6] [Ru(bpy)(AcMe)2][PF6] [Ru(bpy)2HCO][PF6]
Photosensitizer[edit | edit source]
Investigations[edit | edit source]
cat | cat conc [µM] | PS | PS conc [mM] | e-D | solvent A | . | λexc [nm] | TON CO | TON H2 | TON HCOOH | . | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1. | 25 | 0.025 | 400 - 700 | 1 | 2 | 13 | ||||||
2. | 25 | 0.025 | 400 - 700 | 2 | 4 | 21 | ||||||
3. | 25 | 0.025 | 400 - 700 | 13 | 8 | 62 | ||||||
4. | 25 | 0.025 | 400 - 700 | 8 | 8 | 34 | ||||||
5. | 25 | 0.025 | 400 - 700 | 7 | 9 | 40 | ||||||
6. | 25 | 0.025 | 400 - 700 | 3 | 4 | 27 |
cat | cat conc [µM] | PS | PS conc [mM] | e-D | solvent A | . | λexc [nm] | TON CO | TON H2 | TON HCOOH | . | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1. | 6.2 | 0.025 | 400 - 700 | 3 | 9 | 26 | ||||||
2. | 6.2 | 0.025 | 400 - 700 | 3 | 11 | 39 | ||||||
3. | 6.2 | 0.025 | 400 - 700 | 19 | 19 | 117 | ||||||
4. | 6.2 | 0.025 | 400 - 700 | 21 | 16 | 107 | ||||||
5. | 6.2 | 0.025 | 400 - 700 | 21 | 14 | 75 | ||||||
6. | 6.2 | 0.025 | 400 - 700 | 4 | 12 | 64 | ||||||
7. | 3.1 | 0.025 | 400 - 700 | 36 | 33 | 296 | ||||||
8. | 3.1 | 0.025 | 400 - 700 | 16 | 29 | 145 | ||||||
9. | 3.1 | 0.025 | 400 - 700 | 34 | 28 | 211 | ||||||
10. | 1.6 | 0.025 | 400 - 700 | 40 | 67 | 419 | ||||||
11. | 1.6 | 0.025 | 400 - 700 | 25 | 62 | 225 | ||||||
12. | 1.6 | 0.025 | 400 - 700 | 45 | 65 | 335 | ||||||
13. | 1.6 | 0.025 | 400 - 700 | 4 | 44 | 75 |
analyte | reduction potential | solvent | electrolyte | . | . | WE | . | . | RE | . | |
---|---|---|---|---|---|---|---|---|---|---|---|
1. | 0,-2.11 | glassy carbon | Ag/AgNO3 in MeCN | ||||||||
2. | 0.45,-1.97 | glassy carbon | Ag/AgNO3 in MeCN | ||||||||
3. | 1.22,-1.75 | glassy carbon | Ag/AgNO3 in MeCN | ||||||||
4. | 1.20,-1.61 | glassy carbon | Ag/AgNO3 in MeCN |
Sacrificial electron donor[edit | edit source]
In this study, the experiments were done with the sacrificial electron donor TEOA (100507).
Additives[edit | edit source]
No additives were used in the described experiments.
Investigations
- CO2 reduction experiments (Molecular process, Photocatalytic CO2 conversion experiments)
- Optimization of concentrations (Molecular process, Photocatalytic CO2 conversion experiments)
- Table 1 (Molecular process, Photocatalytic CO2 conversion experiments)
- Table 2 (Molecular process, Photocatalytic CO2 conversion experiments)
- Table 3 - CV (Assay, Cyclic Voltammetry experiments)