RESEARCH / A0332
Amorphous High-entropy Phosphide Nanosheets With Multi-atom Catalytic Sites for Efficient Oxygen Evolution
Read the original paper · 10.1002/adma.202410295 ↗
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 4. Surface structure of FeCoNiCuYP/C, CoNiCuYP/C, and FeCuYP/C samples and reference samples investigations by XAFS. a) Co K-edge XANES, and b) Co K-edge EXAFS spectra; c) Ni K-edge XANES, and d) Ni K-edge EXAFS spectra; e) Fe K-edge XANES, and f) Fe K-edge EXAFS spectra; g) Cu K-edge XANES, and h) Cu K-edge EXAFS spectra; i) Y K-edge EXAFS spectra. EPR spectra of j) •OH and k) •OOH over FeCoNiCuYP/C, CoNiCuYP/C, and FeCuYP/C samples under 1.8 versus RHE in 1 m KOH solution; l) Comparison of •OOH and •OH production on FeCoNiCuYP/C, CoNiCuYP/C, and FeCuYP/C.