Paired electrosynthesis: micro-flow cell processes with and without added electrolyte

Electrochemical Synthesis in Microreactors

“…Paddon et al [18] have created an ECMR for the two electron/ two proton reduction of 4 dissolved in ethanol (Scheme 2). Comparison with and without supporting electrolyte showed that higher yields of 5 were obtained without supporting electrolyte (86% and 92%, respectively).…”

Electrochemical Reactions in Microreactors

“…High electrode surface area to reactor volume ratios are also advantageous for conductivity and reaction efficiency. Marken and coworkers accomplished electrolysis without using intentionally added electrolyte using an electrochemical flow microreactor having a parallel plate-to-plate electrode configuration [19]. A substrate solution was introduced into the chamber, in which two electrodes were placed facing each other at a distance of micrometer order.…”

Salt-free electrolysis of water facilitated by hydrogen gas in thin layer cell

“…3 For example, they include the possibility of electrode reactions at low concentration of supporting electrolyte, [4][5][6][7] electrochemical treatments of water without supporting electrolytes in a flow-through cell, 8 mass transport of electrochemical products to a counter electrode, 9 and local voltage control by segmented electrodes. 10 A disadvantage of microreactors is poor control of currents by electrode potential because of limitation of space for a reference electrode, although specific cell geometry has made it possible to obtain cyclic voltammograms.…”