Size Effects of Pt Nanoparticle/Graphene Composite Materials on the Electrochemical Sensing of Hydrogen Peroxide

Figure 1

Transmission electron microscope images of (a) 4.3 nm-diameter, (c) 2.9 nm-diameter, (e) 1.7 nm-diameter, and (g) 1.3 nm-diameter Pt colloidal nanoparticles. Histograms show the particle size distribution of (b) 4.3 nm-diameter, (d) 2.9 nm-diameter, (f) 1.7 nm-diameter, and (h) 1.3 nm-diameter Pt nanoparticles.

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