RESEARCH / A0285
Behavior Regulation of *CO over Self-Evolution Tandem Catalysts Under Tuned Interfacial Electric Field Boosts CO2 Electroreduction
Read the original paper · 10.1002/anie.202511704 ↗
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 2. Preparation and characterization of CuO, Ag/CuO, Pd/CuO, and Au/CuO pre-catalysts. a) Schematic illustration of the fabrication strategy for tandem catalysts. b) SEM image and elemental mappings of Ag/CuO. c) XRD patterns, d) FT-EXAFS spectra, e) EXAFS wavelet transform plots, and f)–i) XPS spectra of CuO, Ag/CuO, Pd/CuO, and Au/CuO.
Figure 3. Self-evolution process and performance of Cu, Ag/Cu, Pd/Cu, and Au/Cu catalysts at different potentials. a)–d) Contour maps of in situ XRD patterns, e)–h) Cu K-edge XANES spectra over time during the ECR process by potentiostatic electrolysis (CN is the coordination number), i)–l) product distributions, and m) CO Faradaic efficiency of Cu, Ag/Cu, Pd/Cu, and Au/Cu catalysts. n) Long-term stability of Ag/Cu catalyst.