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. 2019 Sep 1;6(21):1901129. doi: 10.1002/advs.201901129

Figure 5.

Figure 5

a) Schematic for the synthesis of single Co atoms in N‐doped carbon derived from Zn/Co BMOF. b) Scanning electron microscopy (SEM) image of the N‐doped carbon and c) HAADF‐STEM image showing the atomic dispersion of Co atoms. a–c) Reproduced with permission.[qv: 61b] Copyright 2018, Wiley‐VCH. d) Schematic for the synthesis of Fe20–PCN‐222 and single Fe atoms in N‐doped carbon (FeSA–N–C). e) SEM image of FeSA–N–C and f) HAADF‐STEM image showing the atomic dispersion of Fe atoms in FeSA–N–C derived from Fe20–PCN‐222. d–f) Reproduced with permission.62 Copyright 2018, Wiley‐VCH. g) Schematic illustration for the synthesis of atomically dispersed W in N‐doped carbon (W‐SAC) from UiO‐66–NH2. h) Energy‐dispersive X‐ray (EDX) spectroscopy elemental mappings of the W‐SAC, indicating that W element is homogeneously distributed in W‐SAC. i) HAADF‐STEM image showing the atomic dispersion of W atoms. g–i) Reproduced with permission.[qv: 63e] Copyright 2018, Wiley‐VCH.