Alkaline ethanol oxidation on porous Fe/Pd–Fe nanostructured bimetallic electrodes

In this work, to prepare nanostructured and porous Fe/Pd–Fe bimetallic catalysts, the iron coating is applied firstly onto copper substrate by electrochemical deposition method. Subsequently, iron-zinc alloy deposited on underlayer iron. Eventually, immersing in an alkaline solution containing palladium ions, will replace zinc, resulting catalysts. The X-ray diffraction (XRD) technique was used for characterization of physical properties as-prepared electrocatalysts. Their electrocatalytic activity studied methods such as cyclic voltammetry (CV), chronoamperometry (CA), impedance spectroscopy (EIS). XRD results showed that zinc element main component Fe/Zn-Fe replaced a result leaching-galvanic replacement. investigations new Fe/Pd-Fe catalyst had higher electro-catalytic stability than pure Pd Fe electrodes ethanol electro-oxidation media. superiority related high surface area synergistic effect between Therefore, catalysts can be proposed potential anode materials fuel cells. A shows