Table 2 PDP parameters at various temperatures for MS in 5 M HCl at different concentrations of LHP.

From: Highly efficient eco-friendly corrosion inhibitor for mild steel in 5 M HCl at elevated temperatures: experimental & molecular dynamics study

T (°C)

Cinh µmol L−1

\({\boldsymbol{\beta }}\) a (V decade−1)

\({-{\boldsymbol{\beta }}}_{{\rm{c}}}\) (V decade−1)

Rp Ω cm2

Ecorr (mV) SCE

icorr (mA cm−2)

IE%

\({\boldsymbol{\theta }}\)

20

—

0.14

0.19

25.1

358

1.4

—

—

92

0.1

0.162

51.6

376

0.52

62

0.62

185

0.08

0.153

76.1

349

0.3

78

0.78

277

0.06

0.146

97.2

380

0.19

86

0.86

370

0.03

0.131

117.7

354

0.08

94

0.94

40

—

0.21

0.261

9.7

399

5.2

—

—

92

0.184

0.241

18.8

380

2.4

53

0.53

185

0.179

0.221

25.2

362

1.7

67

0.67

277

0.165

0.211

34.6

358

1.16

77

0.77

370

0.153

0.209

51.8

342

0.74

86

0.86

60

—

0.23

0.298

4.8

396

11.7

—

—

92

0.188

0.285

6.9

360

7.1

39

0.39

185

0.18

0.281

8.2

364

5.8

50

0.5

277

0.171

0.276

10.7

354

4.3

63

0.63

370

0.165

0.269

14.3

347

3.1

73

0.73

80

—

0.242

0.302

3.4

398

17.2

—

—

92

0.197

0.32

3.8

390

13.9

19

0.19

185

0.185

0.298

4.5

386

11.1

35

0.35

277

0.181

0.287

5.4

382

8.9

48

0.48

370

0.173

0.278

7.1

412

6.6

61

0.61

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