Fig. 2
BF-TEM images of Au@Pt core–shell NPs synthesized without ultrasonication for (a) 2, (b) 4, and (c) 24 h, along with (d) the correlation between particle size and reaction period.
Fig. 2 | Scientific Reports
BF-TEM images of Au@Pt core–shell NPs synthesized without ultrasonication for (a) 2, (b) 4, and (c) 24 h, along with (d) the correlation between particle size and reaction period.
