An expanded graphite electrode coated with a thin layer of polyaniline and loaded with platinum has been used to study electro-oxidation of ethanol. The graphite plate electrode was expanded by doping with potassium (K)-vapour using vapour incorporation technique developed at our laboratory. The expanded graphite was platinised by electro-deposition technique and its electrochemical behaviour was examined using a laboratory model fuel cell. The open-circuit potential (OCP) and shortcircuit current (SCC) values of laboratory model fuel cell in 1M H2SO4 comprising of normal and expanded graphite electrodes having same catalytic loading as working electrode were observed. The expanded graphite electrode was also coated with a thin film of polyaniline and then loaded with Pt catalyst as before. Cyclic voltammogram of polyaniline coated electrodes in H2SO4 solution was investigated. Electrocatalytic activity of the modified electrode is better than Pt deposited electrode due to the higher reaction area of Pt particles.