Abstract
AbstractAn effective electrochemical reduction of nitrous oxide (N2O) is established by controlling solution compositions in this study. N2O was electrochemically reduced varying solvent composition and supporting electrolytes (K2SO4 and Na2SO4) concentrations. The differences in reduction current density and solution resistance were analyzed via linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS), respectively, depending on solution conditions. UV‐Vis spectroscopy was adopted to measure the solubility of N2O. As a result, among the conditions investigated in this study, 300 mM of K2SO4 and aqueous based solution were revealed as an optimum condition for the electrochemical N2O reduction. At 300 mM of K2SO4, the highest current density was obtained due to a high conductance of the electrolyte and a moderate solubility of N2O.
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