Fig. 4: Morphology evolution from 1st to 4th nanoframes.
From: Nesting of multiple polyhedral plasmonic nanoframes into a single entity
SEM images of a 1st-Au-C-NPs, b 1st-Au@Pt-C-NPs, c 2nd-Au-CO-NPs, d 2nd-Au@Pt-CO-NPs, e 3rd-Au-TO-NPs, f 3rd-Au@Pt-TO-NPs, g 4th-Au-O-NPs, and h 4th-Au@Pt-O-NPs, scale bar = 200 nm. i–p Low magnification and zoomed-in SEM images viewed from <110>, <100>, and <111> directions of i and j 1st-Pt-C-NFs, k and l 2nd-Pt-C:CO-NFs, m, n 3rd-Pt-C:CO:TO-NFs, o, p 4th-Pt-C:CO:TO:O-NFs, scale bar = 100 nm. STEM image and EDS elemental mapping images of q 1st-Pt-C-NFs, r 2nd-Pt-C:CO-NFs, s 3rd-Pt-C:CO:TO-NFs, and t 4th-Pt-C:CO:TO:O-NFs, scale bar = 50 nm.
