1D Pd-Based Nanomaterials as Efficient Electrocatalysts for Fuel Cells - Low-cost Nanomaterials: Toward Greener and More Efficient Energy Applications - page 322

Fig. 4 TEM images of the PdFe nanoparticles (a) and nanorods with a length of 10 nm (b),
50 nm (c), and 50 nm in one bundle (d). Reprinted from Ref. [ 73 ] with permission by Elsevier
In another report, Li and co-workers [ 74 ] reported the preparation and char-
acterization of PdFe nanoleaves (NLs) for ORR. The novel nanoleaf-structured
materials were synthesized through a wet chemical reduction method with the
presence of oleylamine, and the composition of the final products can be tuned by
changing the precursors of Pd(acac) 2 and Fe(CO) 5 . It was found that the Fe
concentration largely affects the morphology of the as-synthesized nanostructures.
From the TEM images shown in Fig. 5 , the nanoleaves are actually composed of
Fe-based nanosheets and Pd-rich nanowires embedded in the sheets. Lower Fe
content results in the formation of 1D Pd nanowires with shorter lengths and larger
diameters. The high resolution TEM (HRTEM) images in Fig. 5 g shows that the
side surfaces of these Pd-rich nanowires are composed of Pd(111) planes, while