Hydrogen Utilization: Fuel Cells - Hydrogen Generation, Storage, and Utilization - page 163

(a) (b)

(111)

30 nm 2 nm

(c) (d) (e)

2 nm Pd-L Pt-M

(f) (g)

20 nm 2 nm

FIGURE 9.5 TEM (a), HRTEM (b), and HAADF-STEM (c) images, as well as elemental mappings
of Pd (d) and Pt (e) metals in Pt-Pd bimetallic nanoparticles, TEM (f) and HRTEM (g) images of carbon-
supported Pt-Pd bimetallic catalysts. Source : Reproduced with permission from Peng et al. [50].