Fig. 2: Characterization of the Th-TF COF modified Cu3N catalyst.
From: Electrocatalytic CO2 reduction to ethylene in an acid-fed membrane electrode assembly at 10 A
a EDS mapping of a pristine Cu3N catalyst. Scale bars: 20 nm. b atomic-resolution ADF-STEM and ABF-STEM images of Cu3N reflecting its lattice arrangement. Scale bars: 5 Å. c Schematic showing structure of the Th-TF COF and (d) CO2R product distribution in the acid-fed COF AEM MEA system at current density ranging from 100 to 400 mA cm−2 in 0.5 M K2SO4/H2SO4 (pH~2) conditions. No iR correction was applied. Source data for Fig. 2d are provided as a Source Data file. e Schematic of the zero-gap COF-based acid-fed CO2RR MEA system. f Photograph of scale-up electrolyzer cell (a total electrode area of 100 cm2).
