418737.fig.002a
(a)
418737.fig.002b
(b)
418737.fig.002c
(c)
Figure 2: (a) XRD patterns of Pt/SGOs fabricated at different pH. TEM images of Pt/SGOs fabricated (b) at pH 8 and (c) at pH 11, respectively. The inset of (b) is AFM image of GO.