Figure 1
From: Chemically deposited palladium nanoparticles on graphene for hydrogen sensor applications

Physical characteristics: (a) transmission electron microscopy image, Pd nanoparticles having an average diameter of 10 nm, (b) Raman spectra for pure graphene (bottom) and Pd-decorated graphene (top), and (c) X-ray photoelectron spectrum of Pd-decorated graphene: Pd3d doublet for Pd0 brown & green, Pd3d doublet for PdII red & blue.