Figure 2

(a) Powder X-ray diffraction pattern of PtIr@GO nanoparticles in the 2θ range of 0–95° (b) Raman spectrum of GO and PtIr@GO.

(a) Powder X-ray diffraction pattern of PtIr@GO nanoparticles in the 2θ range of 0–95° (b) Raman spectrum of GO and PtIr@GO.