Figure 2: Topology/nanostructure characterization of the compartment-rich support (CMPT).
From: Sintering-Resistant Nanoparticles in Wide-Mouthed Compartments for Sustained Catalytic Performance

(a) SEM- and (b) TEM images of CMPT. The red arrows in (a) and (b) respectively denote the opening width (10–80 nm) and depth (60–80 nm) of the compartments on the surface of CMPT.