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. 2021 Nov 23;12:6806. doi: 10.1038/s41467-021-27143-5

Fig. 3. Morphology of M1Pt1/NCNS catalysts.

Fig. 3

HAADF-STEM images of Co1Pt1/NCNS (a), Fe1Pt1/NCNS (e), and Ni1Pt1/NCNS (i) at low resolution and corresponding EDX mapping (b, f, and j). HAADF-STEM images on Co1Pt1/NCNS (c), Fe1Pt1/NCNS (g), and Ni1Pt1/NCNS (k) samples. The white circles highlight the Pt single atoms. The red circles highlight the Co, Fe, and Ni single atoms, respectively. d, h, and l Corresponding EELS spectra at the location of red dash circle in c, g, and k.