RESEARCH / A0322
One stone four birds: The redox and acid-basic site integral regulation by La in Cu-SAPO-34 for boosting NOx reduction
Read the original paper · 10.1016/j.apcatb.2025.125647 ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Fig. 3. (a) Raman spectra; (b) H2-TPR profiles of CuLax-SAPO-34; (c) XPS 2p spectra of Cu foil, Cu-SAPO-34 and CuLa0.05-SAPO-34; (d) Normalized Cu K-edge XANES; (e) EXAFS spectra; and (f) FT-EXAFS of Cu foil, Cu-SAPO-34, and CuLa0.05-SAPO-34; (g, h) Cu K-edge WT-EXAFS contour plots for Cu-SAPO-34 and CuLa0.05- SAPO-34; (i) CDD and Bader charge analysis.