Figure 3 | NPG Asia Materials

Figure 3

From: Organic-inorganic hybrid PtCo nanoparticle with high electrocatalytic activity and durability for oxygen reduction

Figure 3

TEM images overlayed with particle size distributions of as-prepared (a) PtCo/C and (b) PtCo/C-PNIPAM. (c) Bright-field and (d) dark-field STEM images of PtCo/C-PNIPAM at low magnification. Energy-dispersive X-ray spectroscopy elemental mapping images for (e) Pt, (f) Co and (g) N and (h) the overlapped mapping image with all the elements in the same region of the PtCo/C-PNIPAM sample. (i) Dark-field STEM image of a nanoparticle scanned along the direction of the green arrow and (j) the resultant line profile of Pt, Co and N in PtCo/C-PNIPAM sample. STEM, scanning transmission electron microscope.

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