Influence of Bath Composition at Acidic pH on Electrodeposition of Nickel-Layered Silicate Nanocomposites for Corrosion Protection

Table 4

𝐸_corr, 𝑖_corr and polarization resistance (Rp) of the Ni-MMT (0.5%) nanocomposite film electrodeposited at various pHs (1.6, 2.5, 3.0) of the plating bath.

Ni-MMT coating deposited at	𝐸corr (V); ± SD (𝑛=3)	𝑖corr (A·cm^−2); ± SD (𝑛=3)	Rp (Ω·cm^2); ± SD (𝑛=3)
pH 1.6	−0.32 ± 0.02	9.02 ± 3 × 10^−7	1.47 ± 0.5 × 10^5
pH 2.5	−0.34 ± 0.02	9.48 ± 3 × 10^−7	1.84 ± 0.4 × 10^5
pH 3.0	−0.39 ± 0.02	7.34 ± 2 × 10^−7	1.16 ± 0.2 × 10^5