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Table 5 Corrosion potential (Ecorr), corrosion current density (icorr), Tafel slopes (βc, βa), degree of surface coverage (θ), and inhibition efficiency (IE) of carbon steel in 1 M HCl at 298 K for diolefinic dye

From: Synergistic inhibition effect of diolefinic dye and silver nanoparticles for carbon steel corrosion in hydrochloric acid solution

[Diolefinic dye], M

− Ecorr

mV vs. Ag/AgCl

icorr

μA cm−2

βa

mV dec−1

− βc

mV dec−1

kcorr

mpy

Ï´

% IE

Blank

492

223

190.91

127.9

2.61

–

–

1 × 10–6

445

134

138.3

135.51

1.57

0.390

39.0

5 × 10–6

512

109

292.13

161.61

1.28

0.510

51.0

1 × 10–5

453

81

151.66

136.87

0.95

0.630

63.0

5 × 10–5

431

58

80.59

125.57

0.78

0.730

73.0

1 × 10–4

458

38

90.02

124.78

0.45

0.820

82.0

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BMC Chemistry

ISSN: 2661-801X

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