Electrochemical Reduction of N2O on Gas-Diffusion Electrodes

Abstract
The electrochemical reduction of N2O to N2 on gas-diffusion electrodes (GDEs) modified by Pt and Ni electrocatalysts at room temperature was studied. The Faradaic efficiency for the reduction of N2O was 100%, even for a low concentration of N2O gas at a low current density. When 0.6 mmol of N2O was electrolyzed, 99.7% of the N2O was decomposed at a constant current density of 6.4 mA cm−2. The Faradaic efficiency of N2O reduction was increased by using pulse electrolysis.