Homogeneous Electron Transfer Catalysis of the Electrochemical Reduction of Carbon Dioxide. Do Aromatic Anion Radicals React in an Outer-Sphere Manner?

1996 ◽  
Vol 118 (30) ◽  
pp. 7190-7196 ◽  
Author(s):  
Armando Gennaro ◽  
Abdirisak A. Isse ◽  
Jean-Michel Savéant ◽  
Maria-Gabriella Severin ◽  
Elio Vianello
Keyword(s):  
Carbon Dioxide ◽  
Electron Transfer ◽  
Electrochemical Reduction ◽  
Outer Sphere ◽  
Anion Radicals

scholarly journals RuIII(edta) complexes as molecular redox catalysts in chemical and electrochemical reduction of dioxygen and hydrogen peroxide: inner-sphere versus outer-sphere mechanism

RSC Advances ◽  
2021 ◽  
Vol 11 (35) ◽  
pp. 21359-21366
Author(s):  
Debabrata Chatterjee ◽  
Marta Chrzanowska ◽  
Anna Katafias ◽  
Maria Oszajca ◽  
Rudi van Eldik
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Transfer ◽  
Electrochemical Reduction ◽  
Molecular Oxygen ◽  
Outer Sphere ◽  
Transfer Processes ◽  
Edta Complexes ◽  
Inner Sphere ◽  
Electron Transfer Processes ◽  
Sphere Mechanism

[RuII(edta)(L)]2–, where edta4– =ethylenediaminetetraacetate; L = pyrazine (pz) and H2O, can reduce molecular oxygen sequentially to hydrogen peroxide and further to water by involving both outer-sphere and inner-sphere electron transfer processes.

A unique proton coupled electron transfer pathway for electrochemical reduction of acetophenone in the ionic liquid [BMIM][BF4] under a carbon dioxide atmosphere

2011 ◽  
Vol 13 (12) ◽  
pp. 3461 ◽  
Author(s):  
Shu-Feng Zhao ◽  
La-Xia Wu ◽  
Huan Wang ◽  
Jia-Xing Lu ◽  
Alan M. Bond ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Electron Transfer ◽  
Ionic Liquid ◽  
Electrochemical Reduction ◽  
Electron Transfer Pathway ◽  
Proton Coupled Electron Transfer ◽  
Carbon Dioxide Atmosphere

scholarly journals Analyzing mechanisms in Co(i) redox catalysis using a pattern recognition platform

2021 ◽  
Vol 12 (13) ◽  
pp. 4771-4778
Author(s):  
Tianhua Tang ◽  
Christopher Sandford ◽  
Shelley D. Minteer ◽  
Matthew S. Sigman
Keyword(s):  
Pattern Recognition ◽  
Electron Transfer ◽  
Linear Regression ◽  
Electrochemical Reduction ◽  
Kinetic Studies ◽  
Outer Sphere ◽  
Cobalt Complexes ◽  
Transfer Mechanism ◽  
Redox Catalysis ◽  
Electron Transfer Mechanism

Through kinetic studies combining electroanalytical techniques with multivariable linear-regression (MLR) analysis, a pattern recognition platform is established to determine the electron-transfer mechanism (inner-sphere or outer-sphere) of an electrochemical reduction of benzyl bromides, mediated by different cobalt complexes.

Tetraaza-macrocyclic cobalt(II) and nickel(II) complexes as electron-transfer agents in the photo(electro)chemical and electrochemical reduction of carbon dioxide

2010 ◽  
Vol 103 (10) ◽  
pp. 288-295 ◽  
Author(s):  
A. H. A. Tinnemans ◽  
T. P. M. Koster ◽  
D. H. M. W. Thewissen ◽  
A. Mackor
Keyword(s):  
Carbon Dioxide ◽  
Electron Transfer ◽  
Electrochemical Reduction ◽  
Transfer Agents

Photochemical and Electrochemical Reduction of Carbon Dioxide Catalyzed by a Polyoxometalate-Organic Photosensitizer Complex

2018 ◽  
Author(s):  
Chandan Dey ◽  
Ronny Neumann
Keyword(s):  
Carbon Dioxide ◽  
Cyclic Voltammetry ◽  
Formic Acid ◽  
Electrochemical Reduction ◽  
Mass Spectroscopy ◽  
Photochemical Reactions ◽  
Reducing Agent ◽  
Covalent Attachment ◽  
Hybrid Complex ◽  
Open Face

<p>A manganese substituted Anderson type polyoxometalate, [MnMo<sub>6</sub>O<sub>24</sub>]<sup>9-</sup>, tethered with an anthracene photosensitizer was prepared and used as catalyst for CO<sub>2</sub> reduction. The polyoxometalate-photosensitizer hybrid complex, obtained by covalent attachment of the sensitizer to only one face of the planar polyoxometalate, was characterized by NMR, IR and mass spectroscopy. Cyclic voltammetry measurements show a catalytic response for the reduction of carbon dioxide, thereby suggesting catalysis at the manganese site on the open face of the polyoxometalate. Controlled potentiometric electrolysis showed the reduction of CO<sub>2</sub> to CO with a TOF of ~15 sec<sup>-1</sup>. Further photochemical reactions showed that the polyoxometalate-anthracene hybrid complex was active for the reduction of CO<sub>2</sub> to yield formic acid and/or CO in varying amounts dependent on the reducing agent used. Control experiments showed that the attachment of the photosensitizer to [MnMo<sub>6</sub>O<sub>24</sub>]<sup>9-</sup> is necessary for photocatalysis.</p><div><br></div>

Process Parameters in the Electrochemical Reduction of Carbon Dioxide to Ethylene

2021 ◽  
Author(s):  
Michael Sturman ◽  
Michael Oelgemöller
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reduction ◽  
Process Parameters

Cascade Electrochemical Reduction of Carbon Dioxide with Bimetallic Nanowire and Foam Electrodes

2021 ◽  
Vol 8 (10) ◽  
pp. 1918-1924
Author(s):  
Benjamin A. Zhang ◽  
Daniel G. Nocera
Keyword(s):  
Carbon Dioxide ◽  
Electrochemical Reduction
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