Skip to main content
. 2022 Mar 2;13:1129. doi: 10.1038/s41467-022-28728-4

Fig. 2. NO3−-to-NH3 conversion performance.

Fig. 2

LSVs at a scan rate of 5 mV s−1 (a), Faradaic efficiencies (FE) for NH3 (b) and NO2− (c) on CuSP, CoSP and CuCoSP in 0.01 M NO3− and 0.1 M KOH (pH 13) at various applied potentials. d A comparison of half-cell energy efficiencies of NH3 (EENH3) and partial current densities of NH3 (jNH3) on CuSP, CoSP and CuCoSP catalysts at various potentials. e The FE of NO2− and NH3, the NH3 yield rate (YNH3), as well as the ratio of the formed NH3 concentration [NH3] to the converted NO3− concentration [NO3−] on the CuCoSP catalyst at −0.175 V vs. RHE at [NO3−] in the range of 1−100 mM at pH 13. f The ECSA-normalized YNH3 on CuSP, CoSP, CuCoSP and metallic CuCo hybrids in 0.01 M NO3− and 0.1 M KOH at various potentials. Error bars denote the standard deviations calculated from three independent measurements.