Platinum nanoparticles/functionalized carbon nanoparticles composites supported on the carbonceramic electrode and their electroactivity for ethanol oxidation

The electrocatalytic oxidation of ethanol was studied for the platinum nanoparticles/ functionalized carbon nanoparticles composites supported at the carbonceramic electrode (PtNPs/tosylCNPs/CCE) as an electrocatalyst in acidic medium. The PtNPs/tosylCNPs/CCE electrocatalyst was synthesized by electrodeposition of PtNPs on/in casted tosylCNPs at the CCE. The characterization of the fabricated nanocomposite was done by Xray powder diffraction (XRD) spectroscopy, field emission scanning electron microscopy (FESEM) and energydispersive Xray (EDX) spectroscopy. The obtained electrocatalytic oxidation of ethanol was studied by cyclic voltammetry and chronoamperometry techniques. The results showed that the PtNPs/tosylCNPs/CCE was electrocatalytically more active than PtNPs/CCE and had high anodic peak current densities, low onset potential, low poisoning and high stability. Hence, the proposed nanocomposite, PtNPs/tosylCNPs/CCE, can be extended as an attractive and promising electrocatalyst for the ethanol electrooxidation reaction in fuel cells.