Lamellar crystalline compound calcium phenylphosphonate (CaPP) was synthesized and intercalated with p-aminobenzoic acid (PABA), resulting in the compound CaPP/PABA. In this lamellar compound, the Cu(II) ion was adsorbed, forming a metallated lamellar complex (CaPP/PABA/Cu(II)). This compound was used for the construction of chemically modified electrodes together with carbon paste. All these compounds were characterized through elemental analysis, spectra in the infrared region, specific surface area and electrochemical study using the cyclic voltammetry technique.