Figure 4

Performances of oxalic acid reduction through the PEAEC with TiO2/Ti-M cathode operating with a reaction area of 4 cm2, flow rate of 0.5 ml min−1, and OX concentration of 0.03 M. Conversions of OX at (a) 25, (c) 50, (e) 60, and (g) 70 °C and Faradaic efficiency at (b) 25, (d) 50, (f) 60, and (h) 70 °C at each applied voltage. Red and blue colors correspond to GC and GO, respectively.