Highly selective and efficient reduction of CO2 to CO on cadmium electrodes derived from cadmium hydroxide

2018 ◽  
Vol 54 (43) ◽  
pp. 5450-5453 ◽  
Author(s):  
Jinbiao Shi ◽  
Dan Shao ◽  
Jianling Zhang ◽  
Dongxing Tan ◽  
Xiuniang Tan ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
High Selectivity ◽  
Efficient Reduction ◽  
Reduction Of Co2 ◽  
Cadmium Electrode

A non-noble cadmium electrode was synthesized via an electrolysis strategy, which can electroreduce carbon dioxide into carbon monoxide with high selectivity and efficiency.

Experimental and Theoretical Studies on the Reduction of CO2 to CO with Chloro(methyl)disilane Components from the Direct Process

Synlett ◽  
2017 ◽  
Vol 28 (18) ◽  
pp. 2439-2444 ◽  
Author(s):  
Frank Jensen ◽  
Troels Skrydstrup ◽  
Mathias Flinker ◽  
Sara Lopez ◽  
Dennis Nielsen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Dft Calculations ◽  
Theoretical Studies ◽  
Direct Process ◽  
Industrial Synthesis ◽  
Reduce Carbon Dioxide ◽  
Reduction Of Co2 ◽  
Fluoride Salts ◽  
Experimental And Theoretical Studies

Three disilanes, (CH3)3SiSi(CH3)3, Cl(CH3)2SiSi(CH3)2Cl, and Cl2(CH3)SiSi(CH3)Cl2, all representing components of the Direct Process residue for the industrial synthesis of chloromethylsilanes, were evaluated for their abilities to reduce carbon dioxide to carbon monoxide upon treatment with fluoride salts. In particular, Cl(CH3)2SiSi(CH3)2Cl proved to be highly efficient upon the use of stoichiometric amounts of potassium bifluoride. DFT calculations performed on the reduction steps with (CH3)3SiSi(CH3)3 and fluorinated analogues of this disilane suggest that the previously proposed pathway involving an intermediate silacarboxylic acid is plausible.

Coupling of methyl coenzyme M reduction with carbon dioxide activation in extracts of Methanobacterium thermoautotrophicum

1982 ◽  
Vol 152 (2) ◽  
pp. 840-847
Author(s):  
J A Romesser ◽  
R S Wolfe
Keyword(s):  
Carbon Dioxide ◽  
Co2 Reduction ◽  
Methanobacterium Thermoautotrophicum ◽  
Coenzyme M ◽  
Cell Extracts ◽  
Low Concentrations ◽  
Efficient Reduction ◽  
High Concentrations ◽  
Reduction Of Co2 ◽  
Stimulation Of

The stimulation of carbon dioxide reduction to methane by addition of 2-(methylthio)ethanesulfonate (CH3-S-CoM) to cell extracts of Methanobacterium thermoautotrophicum was investigated. Similar stimulation of CO2 reduction by CH3-S-CoM was found for cell extracts of Methanobacterium bryantii and Methanospirillum hungatei. The CH3-S-CoM requirement could be met by the methanogenic precursors formaldehyde, serine, or pyruvate, or by 2-(ethylthio)ethanesulfonate (CH3CH2-S-CoM), but not by other coenzyme M derivatives. Efficient reduction of CO2 to CH4 was favored by low concentrations of CH3-S-CoM and high concentrations of CO2. Sulfhydryl compounds were identified as effective inhibitors of CO2 reduction. Both an allosteric model and a free-radical model for the mechanism of CO2 activation and reduction are discussed.

Selective and Efficient Reduction of Carbon Dioxide to Carbon Monoxide on Oxide-Derived Nanostructured Silver Electrocatalysts

2016 ◽  
Vol 128 (33) ◽  
pp. 9900-9904 ◽  
Author(s):  
Ming Ma ◽  
Bartek J. Trześniewski ◽  
Jie Xie ◽  
Wilson A. Smith
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Efficient Reduction

Molybdenum carbide catalyst for the reduction of CO2 to CO: surface science aspects by NAPPES and catalysis studies

2019 ◽  
Vol 48 (32) ◽  
pp. 12199-12209 ◽  
Author(s):  
Kasala Prabhakar Reddy ◽  
Srikanth Dama ◽  
Nitin B. Mhamane ◽  
Manoj K. Ghosalya ◽  
Thirumalaiswamy Raja ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Greenhouse Gas ◽  
Surface Science ◽  
Molybdenum Carbide ◽  
Reduction Of Co2

Carbon dioxide is a greenhouse gas, and needs to be converted into one of the useful feedstocks, such as carbon monoxide and methanol.

Quadruple metal-based layered structure as the photocatalyst for conversion of carbon dioxide into a value added carbon monoxide with high selectivity and efficiency

2017 ◽  
Vol 5 (18) ◽  
pp. 8274-8279 ◽  
Author(s):  
Keon-Han Kim ◽  
Sangjun Kim ◽  
Byeong Cheul Moon ◽  
Jae Won Choi ◽  
Hyung Mo Jeong ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Layered Structure ◽  
High Selectivity ◽  
Value Added ◽  
A Value

We report the quadruple metals-based layered structure giving a high selectivity close to 100% and a significantly improved efficiency for photocatalytic conversion of CO2 to CO compared to bi or tri metals-based layered ones.

scholarly journals A Binuclear Cobalt Complex for Molecular CO2 Electrocatalysis

2021 ◽  
Author(s):  
Antoine Bohn ◽  
Juan José Moreno ◽  
Pierre Thuéry ◽  
Marc Robert ◽  
Orestes Rivada Wheelaghan
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Saturated Calomel Electrode ◽  
Cobalt Complex ◽  
Reduction Process ◽  
Inert Atmosphere ◽  
Electrochemical Studies ◽  
Electron Reduction ◽  
Carbon Dioxide Co2 ◽  
Reduction Of Co2

A pyrazole–based ligand substituted with terpyridine groups at the 3 and 5positions has been synthesized to form the dinuclear cobalt complex 1, that electrocatalytically reduces carbon dioxide (CO2) to carbon monoxide (CO) in the presence of Brønsted acids in DMF. Chemical, electrochemical and UV–vis spectro–electrochemical studies under inert atmosphere indicate a single 2 electron reduction process of complex 1 at first, followed by a 1 electron reduction at the ligand. Infrared spectro–electrochemical studies under CO2 and CO atmosphere allowed us to identify a reduced CO–containing dicobalt complex which results from the electroreduction of CO2. In the presence of trifluoroethanol (TFE), electrocatalytic studies revealed single–site mechanism with up to 94 % selectivity towards CO formation when 1.47 M TFE were present, at –1.35 V vs Saturated Calomel Electrode in DMF (0.39 V overpotential). The low faradaic efficiencies obtained (<50%) are attributed to the generation of CO–containing species formed during the electrocatalytic process, which inhibit the reduction of CO2.

Synergistic effect of phosphomolybdic acid on rhodium-based metal-organic frameworks for the efficient selective photocatalytic reduction of CO2 to CO

2021 ◽  
Author(s):  
Yurong Shan ◽  
Dexiang Liu ◽  
Chunyan Xu ◽  
Peng Zhan ◽  
Hui Wang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Electronic Structure ◽  
Synergistic Effect ◽  
Metal Organic Frameworks ◽  
Phosphomolybdic Acid ◽  
Photocatalytic Reduction ◽  
Structure And Morphology ◽  
Spherical Structure ◽  
Metal Organic ◽  
Reduction Of Co2

In this work, PMA@NH2-MIL-68(Rh) with a mangosteen spherical structure was successfully synthesized by a hydrothermal method for the photocatalytic reduction of carbon dioxide. The electronic structure and morphology of the...

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