Effect of the pretreatment on the performances of graphene composite-supported Pt nanoparticle electrocatalyst
作者： Xueping Zhang , Gaoqiang Xia , Chengde Huang , Yuxin Wang
DOI: 10.1007/S11581-014-1180-6
关键词:
摘要: In the present work, use of a pretreated graphene as support for electrocatalyst is presented. To confirm role pretreatment, properties Pt/graphene (Pt/G) was compared with Pt/pretreated (Pt/PANI-G). Two electrocatalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and photoelectron spectroscopy (XPS), its electrochemical studied cyclic voltammograms (CVs), impedance (EIS), chronoamperometry (CA) using three-electrode system. The results indicate that activity Pt/PG (55.6 mA mg−1) much four times higher than Pt/G (13.95 catalyst at 10 mv s−1 in 0.5 M H2SO4 + 2.0 CH3OH, have better long-term stability methanol oxidation.
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