Electrochemical fixation of CO2 to organohalides in room-temperature ionic liquids under supercritical CO2. (10th April 2015)

• Record Type: Journal Article
• Authors: Tateno, Hiroyuki; Nakabayashi, Koji; Kashiwagi, Tsuneo; Senboku, Hisanori; Atobe, Mahito
• Is Part Of: Electrochimica acta. Volume 161(2015)
• Page Start: 212
• Page End: 218
• Publication Date: 2015-04-10
• Subjects: Electrochemical carboxylation -- Electrochemical fixation of carbon dioxide -- Supercritical carbon dioxide -- Room-temperature ionic liquid; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.01.072
• Languages: English
• ISSNs: 0013-4686

Abstract

Graphical abstract: Highlights: The electrochemical properties of novel reaction media such as ionic liquid (IL)/supercriticalCO2 (scCO2 ) systems were evaluated. The IL/scCO2 systems were applied as reaction media for the electrochemical carboxylationof various organohalides. The IL/scCO2 systems were determined as useful media for the electrochemicalcarboxylation. The current efficiencies obtained for the IL/scCO2 systems were much higher than thoseobtained in ILs under subcritical CO2 conditions. Abstract: The electrochemical properties of novel reaction media, ionic liquid (IL)/supercritical CO2 (scCO2 ) systems, were evaluated and the electrochemical carboxylation of various organohalides in these systems was demonstrated. Voltammetric studies revealed that the CO2 solubility in an IL such as N, N -diethyl- N -methyl- N -(2-methoxyethyl) ammonium bis(trifluoromethanesulfonyl) imide ([DEME][TFSI]) increased in the presence of scCO2 . The IL/scCO2 systems were found to be effective for the electrochemical carboxylation of various organohalides.