Due to the great importance of looking for new alternatives for the use of agroindustrial waste, it is intended to synthesizeCu 2+ -doped NiFe 2 O 4 nanoparticles in an environmentally friendly way from extract of the agroindustrial waste coffee pulp, characterizing its structural and anticorrosive properties. A preliminary study of the effect of the concentration of Ni, Cu and Fe on the corrosion of steel in 1M sulfuric acid was developed, using various advanced electrochemical tools such as electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PD). The effect of Cu 2+ -doped NiFe 2 O 4 on corrosion for steel in acidic environment is promising and of great importance for the industry.