RESEARCH / A0090
Activating the O−O Coupling through NiMoO4-CeO2 Nano-Heterojunction with Abundant Oxygen Vacancies for Efficient Electrocatalytic Water Oxidation
Read the original paper · 10.1002/adfm.76170 ↗
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 XAFS characterization results. (a) Ni K-edge XANES of NiMoO4@CeO2-Ov, Ni2O3, NiO, and Ni foil as reference. (b) Fouriertransformed k3-weighted EXAFS spectra of the above samples. (c) Ni K-edge WT-EXAFS contour map of NiMoO4@CeO2-Ov. (d) Ce L3-edge XANES spectra of NiMoO4@CeO2-Ov and reference sample CeO2 standard. (e) Fourier-transformed k2-weighted EXAFS spectra of the above samples. (f) Ce L3-edge WT-EXAFS contour map of NiMoO4@CeO2-Ov. (e) EPR signals for NiMoO4@CeO2-Ov and NiMoO4@CeO2. (h) Schematic diagram of the heterogeneous interface structure of NiMoO4@CeO2-Ov.