Electrochemical reduction of phthalide at carbon cathodes in dimethylformamide: Effects of supporting electrolyte and gas chromatographic injector-port chemistry on the product distribution

2013 ◽  
Vol 113 ◽  
pp. 557-563 ◽  
Author(s):  
Erick M. Pasciak ◽  
Spencer E. Hochstetler ◽  
Mohammad S. Mubarak ◽  
Dennis H. Evans ◽  
Dennis G. Peters
Keyword(s):  
Electrochemical Reduction ◽  
Supporting Electrolyte ◽  
Product Distribution

Voltammetry in the absence of excess supporting electrolyte – ECE-DISP1 reactions: The electrochemical reduction of 2-nitrobromobenzene in acetonitrile solvent

2011 ◽  
Vol 659 (1) ◽  
pp. 25-35 ◽  
Author(s):  
Edward O. Barnes ◽  
Yijun Wang ◽  
Juan G. Limon-Petersen ◽  
Stephen R. Belding ◽  
Richard G. Compton
Keyword(s):  
Electrochemical Reduction ◽  
Supporting Electrolyte

Electrochemical reduction of aromatic ketones in 1-butyl-3-methylimidazolium-based ionic liquids in the presence of carbon dioxide: the influence of the ketone substituent and the ionic liquid anion on bulk electrolysis product distribution

2015 ◽  
Vol 17 (29) ◽  
pp. 19247-19254 ◽  
Author(s):  
Shu-Feng Zhao ◽  
Mike Horne ◽  
Alan M. Bond ◽  
Jie Zhang
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Electrochemical Reduction ◽  
Product Distribution ◽  
Aromatic Ketone ◽  
Aromatic Ketones ◽  
Bulk Electrolysis ◽  
Electrolysis Product

The yield of electrocarboxylation of aromatic ketone depends on the imidazolium-based ionic liquid anion and the ketone substituent.

Electrochemical Reduction of CO2 using Copper Oxide Nanoparticles supported on Glassy Carbon Electrodes

2014 ◽  
Vol 1677 ◽  
Author(s):  
Gregory L. Griffin ◽  
Joel Bugayong
Keyword(s):  
Electrochemical Reduction ◽  
Glassy Carbon ◽  
Morphological Changes ◽  
Chemical Reduction ◽  
Product Distribution ◽  
Product Formation ◽  
Copper Oxide Nanoparticles ◽  
Carbon Fiber Paper ◽  
Cu Foil ◽  
Reduction Of Co2

ABSTRACTWe have studied the electrochemical reduction of CO2 using Cu2O nanoparticles deposited on planar electrodes. Nanoparticles are prepared in aqueous solution by chemical reduction of CuCl2 using ascorbic acid with polyethylene glycol surfactant. The particles are then re-suspended in ethanol with added Nafion binder and brush-coated onto glassy carbon substrates. The CO2 electroreduction activity is measured in KHCO3 electrolyte under flowing CO2 using a two-compartment electrochemical cell. Product formation rates are determined using gas chromatography; major gas phase products include CO, H2, C2H4, and CH4, while liquid phase products include C2H5OH and 1-C3H5OH. The observed product distribution agrees with results obtained previously using similar Cu2O particles deposited on carbon fiber paper supports, as well as Cu2O catalysts prepared by electrodeposition or thermal oxidation. In particular, the catalysts produce a much higher ratio of C2H4 to CH4 than observed using polycrystalline Cu foil. The potential dependence of the formation rates for hydrocarbon and alcohol products is roughly two times greater than for H2 and CO formation. Both XRD and SEM measurements confirm the Cu2O nanoparticles undergo at least partial reduction to Cu metal under CO2 reduction conditions, accompanied by significant surface morphological changes. Thus the kinetic results are consistent with current models that the increased C2H4/CH4 ratio is due to the presence of a more open atomic structure on the freshly reduced Cu surfaces.

Sign in / Sign up

Export Citation Format

Share Document