Abstract. The conductive and transparent porous composite electrode was introduced. The electrode materials were composed of antimony doped tin oxide (ATO)-coated clay platelets imbedded in sol gel derived silicate. The platelet clay self-aligned in a layered structure within the silicate film, an anisotropic construction that minimizes the ATO loading required to achieve electric percolation. In order to demonstrate the differences in the electrochemical behavior two types of mica composite electrodes were prepared. The electrochemical capabilities of such electrodes; Clay Modified Electrodes (CMEs) were studied by using Cyclic voltammetry technique. Addition of Single Walled Carbon Nanotubes (SWCNT) to Mica-based films as a way to improve conductivity was also studied.