RESEARCH / A0117
Lattice strain and electron donation by La in Cu2O promote asymmetric active sites for efficient CO2-to-ethanol conversion
Read the original paper · 10.1016/j.jcis.2026.140676 ↗
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. 1. (a) Synthesis diagram of La-Cu2O-x; SEM images of Cu2O (b) and La-Cu2O-3 (c). Inserted images are their TEM images; (d) XRD patterns for La-Cu2O-x and Cu2O; (e) Enlarged view of the XRD patterns in the regions of Cu2O (1 1 1) facet; (f) Raman spectra of Cu2O and La-Cu2O-x; (g) XANES spectra at the Cu K-edge for different samples; Inserted spectra are XANES spectra at the Cu K-edge from 8975 eV to 8987 eV; (h) Cu K-edge Fourier transform of the EXAFS spectra of different samples; (i) Cu–O coordination shell of Cu2O and La-Cu2O-3; The wavelet transforms (j) of Cu K-edge EXAFS data for La-Cu2O-3.