In a hydrogen chloride electrolysis cell, the anode is prepared by first mixing powdered graphite, such as that sold by Union Oil Company under the designation of Poco graphite 1748, with 15% to 30% by weight od Dupont Teflon T-30 particles. The reduced platinum group metal oxide particles are blended with the graphite-Teflon mixture, placed in a mold and heated until the composition is sintered into a decal form which is then brought into intimate contact with the membrane by bonding and/or embedding the electrode to the surface of the membrane by the application of pressure and heat.