Inhibitor

Cinh (ppm)

CPE-T (F)

Rs (Ω)

Rct (Ω)

IE%

Blank

0

1.1 × 10−4

2.36

124.4

-

Co complex

50

7.4 × 10−5

1.98

407.4

68.9

100

7.8 × 10−5

1.90

490.8

74.4

200

9.4 × 10−5

1.77

480.6

73.8