Figure 4 | Scientific Reports

Figure 4

From: In-Situ High-Resolution Transmission Electron Microscopy Investigation of Overheating of Cu Nanoparticles

Figure 4

Imaging and chemical identification of the graphite-supported Cu nanoparticles.

(a) HAADF and (b) ABF images of a typical Cu nanoparticle supported on the graphite. There appears a thin amorphous layer on the surface of otherwise pure Cu nanoparticle. (c)–(e) HAADF STEM (c) and core-loss images of C-K (d) and Cu-L (e) edges for a graphite-supported Cu nanoparticle. The amorphous layer with a thickness of ~1 nm on the surface of Cu nanoparticle is identified as C.

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