NDLI: Platinum nanoparticles on porphyrin functionalized graphene nanosheets as a superior catalyst for methanol electrooxidation

Content Provider	Royal Society of Chemistry (RSC)
Author	Fan, You-Jun Wang, Li Zhong, Jing-Ping Shen, Xing-Can Fan, Jing-Jing Sun, Shi-Gang Wang, Rui-Xiang
Copyright Year	2014
Abstract	A novel nanostructured catalyst of platinum nanoparticles supported on 5,10,15,20-tetrakis(1-methyl-4-pyridinio)porphyrin tetra(p-toluenesulfonate) (TMPyP) functionalized graphene (TMPyP-graphene) is synthesized by the hydrothermal polyol process. The as-synthesized nanocomposites are characterized by Fourier transform infrared (FTIR) spectroscopy, UV-vis absorption spectroscopy, Raman spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and electrochemical tests. It has been found that Pt nanoparticles of ca. 3.4 nm are uniformly dispersed on the surface of TMPyP-graphene, and hold a high electrochemical active surface area (ECSA) of 126.2 m2 g−1. The results demonstrate that the Pt/TMPyP-graphene catalyst exhibits a much higher electrocatalytic activity and stability than the Pt/graphene and commercial Pt/C catalysts for methanol oxidation, which is of significant importance in improving the efficiency of Pt-based electrocatalysts for DMFCs applications.
Starting Page	14999
Ending Page	15007
Page Count	9
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	6
Issue Number	24
Journal	Nanoscale
DOI	10.1039/c4nr04140b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Infrared spectroscopy Spectroscopy Fourier transform Photoemission spectroscopy Raman spectroscopy X-ray crystallography Transmission electron microscopy Fourier Hydrothermal circulation Porphyrin Graphene Electrochemistry Raman Polyol X-ray photoelectron spectroscopy Methanol
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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