RESEARCH / A0366
Promoting the Intermediates Hydrogenation for Urea Electrosynthesis Over an “Active Hydrogen Pump” Catalyst
Read the original paper · 10.1002/anie.202507869 ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Figure 1. Structural and morphological characterization of Cu3Mo2O9. a) Schematic illustration of urea electrosynthesis facilitated by an “active hydrogen pump” catalyst. b) XRD pattern. c) TEM image and d) corresponding SAED pattern. e) Cu 2p XPS spectrum. f) Cu K-edge XANES spectra. g) R-space EXAFS spectra.
Figure 4. Urea electrosynthesis performance in H-cell. a) Urea yield rates at different potentials in 0.1 M KNO3 electrolyte with CO2 feeding gas. b) LSV curves in 0.1 M KNO3 with Ar or CO2 bubbling, and I–V plots in 0.1 M KNO3 with CO2 at different potentials. c) FEs of different products for CuO, MoO3 and Cu3Mo2O9 at −0.8 V versus. RHE in 0.1 M KNO3 electrolyte with CO2 feeding gas. d) NH3 yields and corresponding FEs for Cu3Mo2O9 during the long-term durability test. e) Cu K-edge in situ XANES spectra during the electrochemical urea electrosynthesis of Cu3Mo2O9 catalyst.