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Abstract
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The nanocomposites of palladium nanoparticles (PdNPs) and functionalized nanostructure
carbon materials were prepared by a facile spontaneous redox method. In this easy and
superior process, PdCl4
2
ions were spontaneously reduced though a galvanic cell effect
between them and the functionalized nano carbon materials. The as-prepared nanocomposites
were characterized by scanning electron microscopy, X-ray diffraction, energy
dispersive X-ray spectroscopy and electrochemical methods. The electrocatalytic activities
of the obtained nanocomposite based electrocatalysts toward ethanol oxidation were
studied in alkaline media by cyclic voltammetry and chronoamperometry. The effect of the
type of nano carbon supports was surveyed in the electrocatalytic activity of the nanocomposite
based electrocatalysts. The obtained results show that the PdNPs on the functionalized
single wall carbon nanotubes present high electrocatalytic activity over than the
other supports and would appears as an interest supporting nano carbon material for
preparation of the nanocomposite based electrocatalyst in direct ethanol fuel cells.
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