Fig. 6 | Nature Communications

Fig. 6

From: Retarding oxidation of copper nanoparticles without electrical isolation and the size dependence of work function

Fig. 6

Thickness of copper oxide shell. a ADF-STEM image of a MPA-capped CuNP exposed to air for 10 days displaying the oxide core shell around the CuNP. Scale bar 2 nm. b A magnified region (marked in yellow in a) of the highly crystalline core shell. Scale bar 2 nm. c–g EDX elemental scans of a similar particle confirming the presence of an oxide core shell. The appearance of S is from the ligand MPA. Scale bar 5 nm (c, d). Scale bar 10 nm (e–g)

Back to article page