Fig. 2: The cell configuration and NORR performance.

a Schematic illustration of the electrocatalytic NORR in a flow cell; b The LSV curves for NORR on CP/Cu NWs and UIO-66/CP/Cu NWs in 0.5 M K2SO4 (iR compensation was not applied); c the NH4+ generation rate and d the Faradaic efficiencies for NORR with 2% NO; e the NH4+ generation rate in 20 ppm NO; f the time-depended NH4+ generation rate for NORR at -0.8 V (vs. RHE) in 20 ppm NO; g the stability test for UIO-66/CP/Cu NWs at −0.5 V (vs. RHE) in 2% NO gas flow. Source data are provided as a Source Data file.