Electrocatalytic Reduction of CO2 to Ethylene by Molecular Cu-Complex Immobilized on Graphitized Mesoporous Carbon: Difference between revisions

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{{DOI|doi=10.1002/smll.202000955}}
{{DOI|doi=10.1002/smll.202000955}}
[[Category:Homogeneous electrochemical CO2 conversion]][[Category:Publication]]
 
{{BaseTemplate}}
{{BaseTemplate}}
===Abstract===
====Summary====
The study shows that a dinuclear molecular copper complex immobilized on graphitized mesoporous carbon catalyzes the electrochemical conversion of CO₂ to hydrocarbons (methane and ethylene) with total Faradaic efficiencies of up to 60%. In 0.1 M KCl, a high selectivity toward C₂ products is achieved, with a Faradaic efficiency of 40%. The influence of local pH, pore structure, and the carbon support on mass transport and the formation of highly reduced products is demonstrated. Although spectroscopy after 2 h of bulk electrolysis indicates that the molecular complex is still present, morphological analysis reveals that newly formed copper clusters act as the actual active sites during catalysis.
====Advances and special progress====
Text
==== Additional remarks ====
Text
===Content of the published article in detail===
==== Catalyst ====
<chemform smiles="[Cu+2]123(~N4=C(CN~1(CC1NC5C(N=1~2)=CC=CC=5)CC1NC2C(N=1~3)=CC=CC=2)NC1C4=CC=CC=1)1~[Cl-]~[Cu+2]234(~N(CC5NC6C(N=5~2)=CC=CC=6)(CC2NC5C(N=2~3)=CC=CC=5)CC2NC3C(N=2~4)=CC=CC=3)~[Cl-]~1" inchikey="LJMJPPDEGWBXNM-UHFFFAOYSA-L" inchi="1S/2C24H21N7.2ClH.2Cu/c2*1-2-8-17-16(7-1)25-22(26-17)13-31(14-23-27-18-9-3-4-10-19(18)28-23)15-24-29-20-11-5-6-12-21(20)30-24;;;;/h2*1-12H,13-15H2,(H,25,26)(H,27,28)(H,29,30);2*1H;;/q;;;;2*+2/p-2" float="none" width="200" height="200">
  -INDIGO-04012615392D
  0  0  0  0  0  0  0  0  0  0  0 V3000
M  V30 BEGIN CTAB
M  V30 COUNTS 66 84 0 0 0
M  V30 BEGIN ATOM
M  V30 1 Cu 5.75017 -3.57471 0.0 0 CHG=2
M  V30 2 Cu 9.59598 -3.57471 0.0 0 CHG=2
M  V30 3 Cl 8.06512 -2.51083 0.0 0 CHG=-1
M  V30 4 Cl 7.24369 -4.63909 0.0 0 CHG=-1
M  V30 5 C 2.82238 -5.59394 0.0 0
M  V30 6 C 2.46394 -6.21475 0.0 0
M  V30 7 C 2.82238 -6.83556 0.0 0
M  V30 8 C 3.53927 -6.83556 0.0 0
M  V30 9 C 3.89771 -6.21475 0.0 0
M  V30 10 C 3.53927 -5.59394 0.0 0
M  V30 11 N 3.76081 -4.9119 0.0 0
M  V30 12 C 3.18082 -4.49073 0.0 0
M  V30 13 N 2.60084 -4.9119 0.0 0
M  V30 14 C 5.69292 -6.42434 0.0 0
M  V30 15 C 5.77954 -7.13575 0.0 0
M  V30 16 C 6.43918 -7.41653 0.0 0
M  V30 17 C 7.01219 -6.9854 0.0 0
M  V30 18 C 6.92557 -6.27399 0.0 0
M  V30 19 C 6.26593 -5.99321 0.0 0
M  V30 20 N 6.03294 -5.31515 0.0 0
M  V30 21 C 5.31606 -5.3271 0.0 0
M  V30 22 N 5.10597 -6.01263 0.0 0
M  V30 23 C 5.80045 -0.615553 0.0 0
M  V30 24 C 6.30227 -0.103277 0.0 0
M  V30 25 C 6.99626 -0.281503 0.0 0
M  V30 26 C 7.18942 -0.972006 0.0 0
M  V30 27 C 6.6881 -1.48428 0.0 0
M  V30 28 C 5.99361 -1.30606 0.0 0
M  V30 29 N 5.3967 -1.70333 0.0 0
M  V30 30 C 4.83464 -1.25777 0.0 0
M  V30 31 N 5.08456 -0.586181 0.0 0
M  V30 32 N 4.36867 -2.77219 0.0 0
M  V30 33 N 11.2015 -4.19103 0.0 0
M  V30 34 C 4.1073 -1.76407 0.0 0
M  V30 35 C 3.28587 -3.51895 0.0 0
M  V30 36 C 4.36867 -4.07902 0.0 0
M  V30 37 C 9.29429 -6.54034 0.0 0
M  V30 38 C 8.72376 -6.97395 0.0 0
M  V30 39 C 8.06263 -6.69666 0.0 0
M  V30 40 C 7.97252 -5.98525 0.0 0
M  V30 41 C 8.54305 -5.55163 0.0 0
M  V30 42 C 9.20418 -5.82942 0.0 0
M  V30 43 N 9.85286 -5.52375 0.0 0
M  V30 44 C 10.3437 -6.04598 0.0 0
M  V30 45 N 9.99873 -6.67425 0.0 0
M  V30 46 C 12.3276 -0.725078 0.0 0
M  V30 47 C 12.6861 -0.104272 0.0 0
M  V30 48 C 12.3276 0.516533 0.0 0
M  V30 49 C 11.6107 0.516533 0.0 0
M  V30 50 C 11.2523 -0.104272 0.0 0
M  V30 51 C 11.6107 -0.725078 0.0 0
M  V30 52 N 11.3892 -1.40662 0.0 0
M  V30 53 C 11.9692 -1.82829 0.0 0
M  V30 54 N 12.5492 -1.40662 0.0 0
M  V30 55 C 9.20119 -0.317846 0.0 0
M  V30 56 C 8.70435 0.198413 0.0 0
M  V30 57 C 8.00837 0.0266596 0.0 0
M  V30 58 C 7.80923 -0.66235 0.0 0
M  V30 59 C 8.30657 -1.17911 0.0 0
M  V30 60 C 9.00255 -1.00685 0.0 0
M  V30 61 N 9.59598 -1.40861 0.0 0
M  V30 62 C 10.1615 -0.968522 0.0 0
M  V30 63 N 9.91758 -0.294447 0.0 0
M  V30 64 C 11.4629 -2.69752 0.0 0
M  V30 65 C 12.2843 -2.99622 0.0 0
M  V30 66 C 11.1268 -5.42319 0.0 0
M  V30 END ATOM
M  V30 BEGIN BOND
M  V30 1 8 1 3
M  V30 2 8 3 2
M  V30 3 8 4 1
M  V30 4 8 4 2
M  V30 5 2 5 6
M  V30 6 1 6 7
M  V30 7 2 7 8
M  V30 8 1 8 9
M  V30 9 2 9 10
M  V30 10 1 10 5
M  V30 11 1 10 11
M  V30 12 2 11 12
M  V30 13 1 12 13
M  V30 14 1 13 5
M  V30 15 2 14 15
M  V30 16 1 15 16
M  V30 17 2 16 17
M  V30 18 1 17 18
M  V30 19 2 18 19
M  V30 20 1 19 14
M  V30 21 1 19 20
M  V30 22 2 20 21
M  V30 23 1 21 22
M  V30 24 1 22 14
M  V30 25 2 23 24
M  V30 26 1 24 25
M  V30 27 2 25 26
M  V30 28 1 26 27
M  V30 29 2 27 28
M  V30 30 1 28 23
M  V30 31 1 28 29
M  V30 32 2 29 30
M  V30 33 1 30 31
M  V30 34 1 31 23
M  V30 35 8 11 1
M  V30 36 8 32 1
M  V30 37 8 29 1
M  V30 38 8 20 1
M  V30 39 1 30 34
M  V30 40 1 34 32
M  V30 41 1 32 36
M  V30 42 1 36 21
M  V30 43 1 35 12
M  V30 44 1 35 32
M  V30 45 2 37 38
M  V30 46 1 38 39
M  V30 47 2 39 40
M  V30 48 1 40 41
M  V30 49 2 41 42
M  V30 50 1 42 37
M  V30 51 1 42 43
M  V30 52 2 43 44
M  V30 53 1 44 45
M  V30 54 1 45 37
M  V30 55 2 46 47
M  V30 56 1 47 48
M  V30 57 2 48 49
M  V30 58 1 49 50
M  V30 59 2 50 51
M  V30 60 1 51 46
M  V30 61 1 51 52
M  V30 62 2 52 53
M  V30 63 1 53 54
M  V30 64 1 54 46
M  V30 65 2 55 56
M  V30 66 1 56 57
M  V30 67 2 57 58
M  V30 68 1 58 59
M  V30 69 2 59 60
M  V30 70 1 60 55
M  V30 71 1 60 61
M  V30 72 2 61 62
M  V30 73 1 62 63
M  V30 74 1 63 55
M  V30 75 8 61 2
M  V30 76 8 52 2
M  V30 77 8 2 43
M  V30 78 8 33 2
M  V30 79 1 62 64
M  V30 80 1 64 33
M  V30 81 1 53 65
M  V30 82 1 65 33
M  V30 83 1 44 66
M  V30 84 1 66 33
M  V30 END BOND
M  V30 END CTAB
M  END
</chemform>
====Investigation====
{{#experimentlist:|form=EC_conversion_of_CO2_experiments|name=Bulk Electrolysis|importFile=|description=}}
{{Tags
|tags=electrochemical CO₂ reduction, dinuclear copper complex, molecular catalyst, copper clusters, graphitized mesoporous carbon support, catalyst immobilization, methane production, ethylene production, C₂ product selectivity, Faradaic efficiency, local pH effects, mass transport, catalyst restructuring, bulk electrolysis, spectroscopy analysis, morphology characterization
}}
[[Category:Homogeneous electrochemical CO2 conversion]]
[[Category:Publication]]

Latest revision as of 16:48, 1 April 2026



Abstract[edit | edit source]

Summary[edit | edit source]

The study shows that a dinuclear molecular copper complex immobilized on graphitized mesoporous carbon catalyzes the electrochemical conversion of CO₂ to hydrocarbons (methane and ethylene) with total Faradaic efficiencies of up to 60%. In 0.1 M KCl, a high selectivity toward C₂ products is achieved, with a Faradaic efficiency of 40%. The influence of local pH, pore structure, and the carbon support on mass transport and the formation of highly reduced products is demonstrated. Although spectroscopy after 2 h of bulk electrolysis indicates that the molecular complex is still present, morphological analysis reveals that newly formed copper clusters act as the actual active sites during catalysis.

Advances and special progress[edit | edit source]

Text

Additional remarks[edit | edit source]

Text

Content of the published article in detail[edit | edit source]

Catalyst[edit | edit source]

101025

Investigation[edit | edit source]


Experiment typeCatalytic informationWorking electrodeCounter electrodeReaction parametersCatalytic performance
...............
1.
Investigation-Name: Bulk Electrolysis


electrochemical CO₂ reduction, dinuclear copper complex, molecular catalyst, copper clusters, graphitized mesoporous carbon support, catalyst immobilization, methane production, ethylene production, C₂ product selectivity, Faradaic efficiency, local pH effects, mass transport, catalyst restructuring, bulk electrolysis, spectroscopy analysis, morphology characterization

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