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Normalized XANES spectra for (a) Ga K edge, (b) first derivative Ga K edge–Ga metal (dark gray), PdGa@SiO2 (blue), Ga@SiO2 (green), and β-Ga2O3 (light gray); (c) Pd K edge–Pd foil (dark gray), PdGa@SiO2 (blue), Pd@SiO2 (red), and PdO (light gray); and Pd K edge EXAFS fits (d) PdGa@SiO2 and (e) Pd@SiO2 (k-weight: 3, fit in light gray).
