The influence of the thickness of nanographitic coatings fabricated by electrophoretic deposition on ethanol electro-oxidation

The catalyst support layer is fabricated by applying a DC electrophoretic deposition on a colloid consisting of dispersed nanographitic flakes along with magnesium ions in isopropyl alcohol. The thickness and conductivity of the deposited layers are controlled by varying the time of the voltage application in the electrophoretic deposition EPD technique. The catalyst supports are decorated by sputtering palladium nanostructures serving as the catalyst. The fabricated support layer with the optimum thickness exhibits an improved conductivity and electro-oxidation performance attaining 800 mA/cm
²
per mg of palladium.