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Title

ELECTROCHEMICAL CHARACTERISTICS OF PLATINUM NANOPARTICLES BASED ON GRAPHENE SULFONATED FOR ETHANOL OXIDATION IN ACIDIC MEDIA

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Abstract

 WE REPORT SULFONATED GRAPHENE CATALYST FOR THE ETHANOL OXIDATION IN ACIDIC MEDIA. GRAPHENE IS SYNTHESIZED FROM GRAPHITE ELECTRODE USING IONIC LIQUID-ASSISTED ELECTROCHEMICAL EXFOLIATION. AMMONIUM SULFATE WAS USED AS AN AGENT FOR GRAPHENE SULFONATION. IN ORDER TO STUDY OF CATALYST CHARACTERIZATIONS, X-RAY DIFFRACTOMETER (XRD), SCANNING ELECTRON MICROSCOPY (SEM) AND TRANSMISSION ELECTRON MICROSCOPE (TEM) WERE USED FOR DETERMINATION OF CRYSTALLITE SIZE, SURFACE MORPHOLOGY AND UNIFORM DEPOSITION OF PT NPS RESPECTIVELY. THE ELECTROCHEMICAL CHARACTERISTICS ARE INVESTIGATED BY CYCLIC VOLTAMMETRY (CV), LINEAR SWEEP VOLTAMMETRY (LSV), ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS) AND CHRONOAMPEROMETERY (CA) OF PT/C AND PT/S-RGO IN NITROGEN GAS SATURATED IN 0.5 M H2SO4 AND ETHANOL SOLUTIONS.

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