fig7
From: Rational engineering of hydroxyapatites for sustainable chemicals, H2, biofuels and CO2 conversion
Figure 7. (A) FT magnitude of k3-weighted EXAFS of RuHAP with an inset showing a proposed surface around Ru3+ of the RuHAP catalyst (Left) and inverse FT of the peaks with the 0.8 < R/Å < 2.8 range (Right). Adapted from Ref.[168] with permission from American Chemical Society. (B) Electron microscopy images and size distribution with evidence of single-atom Ni in 0.5Ni1/HAP-Ce samples. Adapted from Ref.[89] under CC BY 4.0 license.