Fig. 3: Electrochemical N2 reduction reaction using different catalysts.
From: Atomically-precise dopant-controlled single cluster catalysis for electrochemical nitrogen reduction
a Schematic illustration of the experimental setup for ENRR. b NH3 production rate. c Faradic efficiency of ammonia production at different potentials. d 1H-NMR spectra of 14NH4+ and 15NH4+ produced from ENRR with different ratios of 14N2/15N2 as initial gas source, including pure 14N2, 9:1 and 1:1 as labeled in (d). The integrated peak areas associated with 14NH4+ and 15NH4+ are determined to be 9:1 and 1:1, which are proportional to the initial ratio of 14N2 /15N2 gas. The error bars in b–c denote standard deviation of three technical replicates.
