Inhibition Effect of 1-Butyl-4-Methylpyridinium Tetrafluoroborate on the Corrosion of Copper in Phosphate Solutions

Figure 3

Some chosen Tafel plots of the copper electrode in 0.5 M PO⁴³⁻ solutions containing different concentrations of 1-Butyl-4-methylpyridinium tetrafluoroborate: (a) 0, (b) 1.0, (c) 10.0 and (d) 50.0 mM, pH 2, dE/dt 1 mV s⁻¹.