Figure 5.

XPS spectra of GO, RGO-Pt-7, and RGO-Pt-10: (a) survey scan, high-resolution scan in the (b) O 1 s region, (c) C 1 s region, and (d) Pt 4f region; C 1 s XPS spectra of: (e) RGO-Pt-10, (f) RGO-Pt-7, and (g) GO indicate oxidation with three major components that correspond to carbon atoms in different functional groups: the sp2-hybridized C-C, the C in C-OH bonds, and the carboxylate carbon.

Wang et al. Nanoscale Research Letters 2011 6:241   doi:10.1186/1556-276X-6-241
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