Electrochemical assessment of phenol and triazoles derived from phenol (BPT) on API 5L X52 steel immersed in 1 M HCl

被引：15

作者：

Espinoza-Vazquez, A. ^{[1
]}

Rodriguez-Gomez, F. J. ^{[1
]}

Gonzalez-Olvera, R. ^{[2
]}

Angeles-Beltran, D. ^{[2
]}

Mendoza-Espinosa, D. ^{[2
]}

Negron-Silva, G. E. ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Fac Quim, Dept Ingn Met, Av Univ 3000, Mexico City 04510, DF, Mexico

[2] Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, Av San Pablo 180, Mexico City 02200, DF, Mexico

来源：

RSC ADVANCES | 2016年 / 6卷 / 77期

关键词：

M HYDROCHLORIC-ACID; EFFECTIVE CORROSION-INHIBITORS; MILD-STEEL; CARBON-STEEL; 1,2,3-TRIAZOLE DERIVATIVES; HYDRODYNAMIC CONDITIONS; MULTICOMPONENT SYNTHESIS; FLOW; TEMPERATURE; SURFACTANTS;

D O I：

10.1039/c6ra09832k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The corrosion inhibition of phenol triazoles was tested with several halogens by means of electrochemical impedance and potentiodynamic polarization. We observed the importance of the 1,2,3-triazole ring in the chemical structure because significant inhibition efficiencies (h) > 90% were achieved at low concentrations with the different halogens. These compounds have a physisorption-type adsorption process, in accordance with the Langmuir model. For long immersion times, the organic inhibitor BPTI showed good corrosion protection during 504 hours of immersion with h > 80%. Furthermore, the hydrodynamic conditions proved that organic molecules experience a desorption process related to the different rotation velocities employed. Finally, it was demonstrated by SEM that the corrosion velocity is diminished when using the BPTI inhibitor at 50 ppm.

引用

页码：72885 / 72896

页数：12

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