Development of a Nonenzymatic Electrochemical Sensor for Organophosphate Pesticide Detection Using Copper (II) Oxide Nanorod Electrodes

Figure 6

Representative SEM images (×2000, ×5000, ×10,000, and ×20,000) of the CuO NRs formed on the Cu foil surface after different anodization times (15, 20, 25, and 30 min).