RESEARCH / A0430
Rare-earth lanthanum-nitrogen-carbon enhanced by abundant microspores for efficient oxygen reduction reaction
Read the original paper · 10.1016/j.jechem.2025.02.021 ↗
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) The scheme of synthesizing La-N-C; (b) HRTEM image of the La-N-C-2; (c, d) element mapping images of La-N-C-2; (e) HADDF-STEM image of La-N-C-2; (f) 3D atom-overlapping Gaussian-function fitting map for the single La atom marked by red square; (g) EELS spectrum of La-N-C-2; (h) La LIII-edge XANES, (i) FT-EXAFS) spectra, (j) The corresponding EXAFS R-space fitting curves, (k–n) WT diagrams of La-N-C-2, and the standard samples of La2O3, La foil, and LaN.