fig13

Figure 13. Electrochemical NRR performance; (A) LSV curves of Ru CF-SAs/g-C₃N₄ in a N₂ and Ar saturated 0.5 M NaOH aqueous solution; (B) LSV curves of CF, CF-g-C₃N₄, CF-Ru NPs, and CF-Ru SAs/g-C₃N₄ electrodes in a N₂ saturated aqueous solution of 0.5 M NaOH; (C) FEs and (D) ammonia yield rates at different potentials ranging from 0.05 to -0.60 V vs. RHE; (E) Comparison of the ammonia-sensitive selecting electrode and Nessler reagent-based colorimetric method for the quantitative analysis of ammonia yield rate; (F) Chronoamperometry results at the corresponding potentials; (G) FEs and ammonia yield rates during five consecutive cycles; (H) Chronoamperometry results at the 0.05 and -0.40 V vs. RHE; (I) FEs and ammonia yield rates within 1 and 12 h tests; Reproduced from Ref.^[145] with permission from Wiley-ACH.