Mechanism of C–C bond formation in the electrocatalytic reduction of CO2 to acetic acid. A challenging reaction to use renewable energy with chemistry

2017 ◽  
Vol 19 (10) ◽  
pp. 2406-2415 ◽  
Author(s):  
Chiara Genovese ◽  
Claudio Ampelli ◽  
Siglinda Perathoner ◽  
Gabriele Centi
Keyword(s):  
Acetic Acid ◽  
Renewable Energy ◽  
Bond Formation ◽  
Electrocatalytic Reduction ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2

A study on the mechanism of C–C bond formation in the electrocatalytic reduction of CO2 to acetic acid with Cu/CNT electrocatalysts.

scholarly journals Through-Space Electronic Conjugation Enhances Co-Electrocatalytic Reduction of CO2 to CO by a Molecular Cr Complex

2021 ◽  
Author(s):  
Shelby L. Hooe ◽  
Juan Moreno ◽  
Amelia Reid ◽  
Emma Cook ◽  
Charles Machan
Keyword(s):  
Electron Transfer ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Value Added ◽  
Energy Sources ◽  
Computational Results ◽  
Electrocatalytic Reduction ◽  
Dispersion Interactions ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2

The electrocatalytic reduction of CO2 represents an appealing method for converting renewable energy sources into value-added chemical feedstocks. Here, we report a co-electrocatalytic system for the reduction of CO2 to CO comprised of a molecular Cr complex, Cr(tbudhbpy)Cl(H2O) 1, where 6,6′-di(3,5-di-tert-butyl- 2-phenolate)-2,2′-bipyridine = [tbudhbpy]2- and dibenzothiophene-5,5-dioxide (DBTD) as a redox mediator which achieves high activity (1.51-2.84 x 105 s–1) and quantitative selectivity. Under aprotic or protic conditions, DBTD produces a co-electrocatalytic response with 1 by coordinating trans to the site of CO2 binding and mediating electron transfer from the electrode with quantitative efficiency for CO. This assembly is in part reliant on through-space electronic conjugation between the π frameworks of DBTD and the bpy fragment of the catalyst ligand, with important contributions from dispersion interactions and weak sulfone coordination to Cr. Experimental and computational results suggest that this interaction stabilizes a key intermediate in a new aprotic catalytic pathway and lowers the rate-determining transition state under protic conditions. To the best of our knowledge through-space electronic conjugation has not been explored in molecular electrocatalytic systems.<br>

Highly efficient and durable aqueous electrocatalytic reduction of CO2 to HCOOH with a novel bismuth–MOF: experimental and DFT studies

2020 ◽  
Vol 8 (19) ◽  
pp. 9776-9787 ◽  
Author(s):  
Xurui Zhang ◽  
Yanxing Zhang ◽  
Qingqing Li ◽  
Xiaodong Zhou ◽  
Qingyu Li ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Renewable Energy ◽  
Energy Storage ◽  
Electrochemical Reduction ◽  
Energy Storage And Conversion ◽  
Dft Studies ◽  
Low Carbon ◽  
Electrocatalytic Reduction ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2

Electrochemical reduction of carbon dioxide (ERCO2) to low-carbon fuel and useful chemicals, which can simultaneously store renewable energy and recover CO2 in a green manner, has proven to be a viable energy storage and conversion strategy.

scholarly journals Through-Space Electronic Conjugation Enhances Co-Electrocatalytic Reduction of CO2 to CO by a Molecular Cr Complex

2021 ◽  
Author(s):  
Shelby L. Hooe ◽  
Juan Moreno ◽  
Amelia Reid ◽  
Emma Cook ◽  
Charles Machan
Keyword(s):  
Electron Transfer ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Value Added ◽  
Energy Sources ◽  
Computational Results ◽  
Electrocatalytic Reduction ◽  
Dispersion Interactions ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2

The electrocatalytic reduction of CO2 represents an appealing method for converting renewable energy sources into value-added chemical feedstocks. Here, we report a co-electrocatalytic system for the reduction of CO2 to CO comprised of a molecular Cr complex, Cr(tbudhbpy)Cl(H2O) 1, where 6,6′-di(3,5-di-tert-butyl- 2-phenolate)-2,2′-bipyridine = [tbudhbpy]2- and dibenzothiophene-5,5-dioxide (DBTD) as a redox mediator which achieves high activity (1.51-2.84 x 105 s–1) and quantitative selectivity. Under aprotic or protic conditions, DBTD produces a co-electrocatalytic response with 1 by coordinating trans to the site of CO2 binding and mediating electron transfer from the electrode with quantitative efficiency for CO. This assembly is in part reliant on through-space electronic conjugation between the π frameworks of DBTD and the bpy fragment of the catalyst ligand, with important contributions from dispersion interactions and weak sulfone coordination to Cr. Experimental and computational results suggest that this interaction stabilizes a key intermediate in a new aprotic catalytic pathway and lowers the rate-determining transition state under protic conditions. To the best of our knowledge through-space electronic conjugation has not been explored in molecular electrocatalytic systems.<br>

Nanoporous bismuth for the electrocatalytic reduction of CO2 to formate

2021 ◽  
Author(s):  
Xiaoyan Wang ◽  
Zhiyong Wang ◽  
Xianbo Jin
Keyword(s):  
Electrocatalytic Reduction ◽  
Electrocatalytic Performance ◽  
Primary Particles ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2

The size of the primary particles of nanoporous Bi has a great impact on the electrocatalytic performance of Bi for the reduction of CO2 to formate.

scholarly journals Efficient electrocatalytic reduction of CO2 to CO on an electrodeposited Zn porous network

2018 ◽  
Vol 97 ◽  
pp. 87-90 ◽  
Author(s):  
Yu Lu ◽  
Bin Han ◽  
Chongchong Tian ◽  
Jian Wu ◽  
Dongsheng Geng ◽  
...  
Keyword(s):  
Electrocatalytic Reduction ◽  
Porous Network ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2

Electrocatalytic reduction of CO2 to ethylene and ethanol through hydrogen-assisted C–C coupling over fluorine-modified copper

2020 ◽  
Vol 3 (6) ◽  
pp. 478-487 ◽  
Author(s):  
Wenchao Ma ◽  
Shunji Xie ◽  
Tongtong Liu ◽  
Qiyuan Fan ◽  
Jinyu Ye ◽  
...  
Keyword(s):  
Electrocatalytic Reduction ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2

Enhanced Electrocatalytic Reduction of CO2 via Chemical Coupling between Indium Oxide and Reduced Graphene Oxide

Nano Letters ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 4029-4034 ◽  
Author(s):  
Zhirong Zhang ◽  
Fawad Ahmad ◽  
Wanghui Zhao ◽  
Wensheng Yan ◽  
Wenhua Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Indium Oxide ◽  
Electrocatalytic Reduction ◽  
Reduced Graphene ◽  
Chemical Coupling ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2
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