Study on Pt-SnO2/C electrode prepared by Electrostatic Fiberswill for direct ethanol fuel cells

A carbon supported Pt-SnO₂/C catalyst was prepared by hydrothermal method and the preparation process was optimized well. Factor of product in solution of different atomic ratio of Pt-SnO₂/C catalyst was evaluated for their effects on ethanol oxidation reaction (EOR). The Pt-SnO₂/C electrodes were prepared by Electrostatic Fiberswill technology. Structural and compositional analysis of the nanostructured materials were performed by EDS, XRD, TEM techniques. The active surface area was up 108.405mg·cm^-2. The ethanol oxidation reaction was tested in a conventional three-electrode cell.The electrochemical studies include cyclic voltammetry, chronoamperometry and AC impedance at Three-electrode under similar conditions to those of the DEFC. At pH 9, composite catalyst particles of low crystallinity, well dispersed, current density up to 109.6mA/cm², which the Pt-SnO₂/C prepared by platinum tin atomic ratio of 3:1, thus the electrocatalytic activity ethanol oxidation was better, which reached high oxidation peak current density with lower potential.