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• W2022064128 abstract "In this work, we have developed an efficient approach to prepare the nitrogen-doped graphene supported Pt nanocomposites (Pt/N-G). Nitrogen-doped graphene (N-G) was prepared by pyrolysis of graphene oxide with cyanamide as nitrogen containing precursor at different temperatures, which led to high and controllable nitrogen contents. Subsequently, the Pt nanoparticles were dispersed over N-G surface by modified chemical polyol reduction process. The morphology and nanostructure of as-prepared catalysts were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD), which verified that the Pt nanoparticles were uniformly dispersed over N-G surface with a narrow size distribution. The functional groups on the surface of the catalysts were investigated by the Fourier transform infrared spectra (FT-IR), while the elemental composition and nitrogen bonding configurations in N-G were further evaluated by X-ray photoelectron spectroscopy (XPS). Furthermore, electrochemical properties are studied by cyclic voltammetry (CV). The Pt/N-G catalysts showed the superior electrocatalytic activity toward methanol oxidation compared to that of Pt loaded on undoped graphene (Pt/G). The results suggested that N-G could be used as an effective catalyst support for fuel cell application." @default.
• W2022064128 created "2016-06-24" @default.
• W2022064128 creator A5009523901 @default.
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• W2022064128 date "2015-01-01" @default.
• W2022064128 modified "2023-09-30" @default.
• W2022064128 title "Synthesis of nitrogen-doped graphene supported Pt nanoparticles catalysts and their catalytic activity for fuel cells" @default.
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• W2022064128 doi "https://doi.org/10.1016/j.electacta.2014.11.077" @default.
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