Sustainable Development of Corrosion Inhibitors from Electronic Scrap: Synthesis and Electrochemical Performance

Table 3

Evolution of electrochemical parameters of the EIS spectra after 100 hours of immersion in 3.5% NaCl solution with 0.001 M of inhibitor synthesized from permanent magnets.

Time (hours)	R1 (Ω·cm^2)	Yo1 (Ω^−1·cm^−2·s^n)	n1	R2 (Ω·cm^2)	Yo2 (Ω^−1·cm^−2·s^n)	n2	Rct (Ω·cm^2)	Yodl (Ω^−1·cm^−2·s^n)	nct
0	—	—	—	—	—	—	838	4.08E − 4	0.78
3	5.50	2.46E − 4	0.60	146	5.14E − 4	0.75	6844	5.33E − 4	0.79
6	5.13	5.27E − 4	0.52	268	4.66E − 4	0.75	9557	4.38E − 4	0.78
9	4.47	1.48E − 3	0.41	410	4.24E − 4	0.75	12037	3.97E − 4	0.80
12	4.67	9.01E − 4	0.45	576	4.08E − 4	0.74	11489	3.66E − 4	0.81
18	5.08	3.70E − 4	0.53	984	3.50E − 4	0.73	12191	3.41E − 4	0.83
24	5.41	1.84E − 4	0.59	1215	3.06E − 4	0.74	11315	3.50E − 4	0.78
50	5.58	1.07E − 4	0.63	1521	2.27E − 4	0.76	12631	2.82E − 4	0.77
75	5.73	9.22E − 4	0.64	3095	2.22E − 4	0.78	11124	2.03E − 4	0.78
100	5.73	8.90E − 4	0.64	3751	2.00E − 4	0.79	11662	1.65E − 4	0.76