Figure 2

Characterization of pGO-Pt, Pt and pGO. (A) TEM image of pGO-Pt. (B) Raman spectrum of pGO-Pt, Pt and pGO. (C) UV-Vis spectra of pGO-Pt, Pt and pGO. (D) FTIR spectra of pGO-Pt, Pt and pGO. White arrows show the existence of Pt attached onto pGO.