Abstract
A simple and cost-effective electrochemical method synthesized platinum nanoparticles on graphene nanosheet (PtNPs@GNS) is reported, and the Pt loading of the PtNPs@GNS can be controlled by electrodeposition. The structure and element analysis of the PtNPs@GNS have been investigated by scanning electron microscopy (SEM), Raman spectrum, X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS). The electrochemical measurement including electrochemical active surface area, current density, mass activity, oxidation peak potential,shows the PtNPs@GNS have more performance electrocatalytic properties for methanol oxidation reaction (MOR) compared to Vulcan XC-72 carbon (XC-72) supported PtNPs electrocatalysts. Probably, the cause which may be attributes to no aggregation of PtNPs and the well-dispersion on surface of GNS, so PtNPs@GNS show large electrochemically active surface area, highly electrocatalytic activity and stability in direct methanol fuel cells.
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Acknowledgments
The Study was supported by the National Natural Science Foundation of China (NO. 21005063, 21175108, 21165016), the Natural Science Foundation of Gansu province (No 096RJZA121) of China, and the key Laboratory of Polymer Materials of Gansu Province, China.
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Zhao, W., Zhou, X., Chen, J. et al. Controllable Electrodeposition of Platinum Nanoparticles on Graphene Nanosheet for Methanol Oxidation Reaction. J Clust Sci 24, 739–748 (2013). https://doi.org/10.1007/s10876-013-0569-0
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DOI: https://doi.org/10.1007/s10876-013-0569-0