Fig. 11. (a) Schematic synthetic process of FeN3P-SAzyme (SAzyme: single-atom nanozyme). (b) AC HAADF-STEM image of FeN3P-SAzyme. Scar bar: 1 nm. (c) DFT calculations on the POD-like activity of FeN3P-SAzyme, FeN4-SAzyme, and Fe3O4 nanozyme for comparison. Color code: C, grey; Fe, blue; N, light blue; O, light red; P, yellow; H, white. Reproduced with permission from ref. 57. Copyright 2021, Nature Publishing Group.
