Inhibitor

EIS method

R_s

/(Ω·cm^–2)

Y₀ × 10^–5

/(S·sⁿ·cm^–2)

n

C_dl

/(μF·cm^–2)

R_ct

/(Ω·cm^–2)

IE

/%

S

Blank

0.902

40.122

0.807

173.00

11.23

—

—

KI

0.993

30.814

0.811

131.48

16.41

31.57

—

BOP + KI

1.578

24.757

0.879

66.80

54.68

79.46

1.23

BOPO + KI

0.966

18.592

0.875

54.42

99.06

88.66

0.72

QBO + KI

0.704

12.034

0.859

41.26

151.30

92.5 8

0.77

PDP method

β_c

/(mV·dec^–l)

R

/(Ω·cm^–2)

I_corr

/(10^–4A·cm^–2)

E_corr

/V

IE

/%

S

Blank

8.500

24.1

9.849

–0.489

—

—

KI

9.192

38.9

7.248

–0.495

26.41

—

BOP + KI

5.855

100.4

2.635

–0.470

73.25

1.11

BOPO + KI

6.459

182.6

1.633

–0.464

83.42

0.78

QBO + KI

3.061

207.4

1.347

–0.458

86.32

0.80