Figure 15.

TEM (a,b) images and (c) SAED pattern obtained for the Pt nanoparticle decorated MWCNTs. The scale bar in (b) and (c) is 100 nm; (d) CV illustrates the electrocatalytic activity of nPtFs toward ORR in 0.5 mol L⁻¹ H₂SO₄; scan rate: 25 mV s⁻¹. (e) CV illustrating the electrocatalytic performance of nPtFs toward oxidation of methanol (0.1 mol L⁻¹) in 0.5 mol L⁻¹ H₂SO₄; scan rate: 25 mV s⁻¹. Inset shows the voltammetric response of electrode modified with commercial catalyst toward methanol oxidation. (f) Chronoamperometric curves obtained for the oxidation of methanol (0.1 mol L⁻¹) on nPtFs and commercial catalyst-modified electrodes. Reprinted with permission from [132]. The American Chemical Society, Washington, DC, USA, 2010.