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


Por: Espinoza-Vazquez, A., Rodriguez-Gomez, F. J., Gonzalez-Olvera, R., Angeles-Beltran, D., Mendoza-Espinosa, D., Negron-Silva, G. E.

Publicada: 1 ene 2016
Resumen:
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 (?) > 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 ? > 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. © 2016 The Royal Society of Chemistry.

Filiaciones:
Espinoza-Vazquez, A.:
 Univ Nacl Autonoma Mexico, Fac Quim, Dept Ingn Met, Av Univ 3000, Mexico City 04510, DF, Mexico

Rodriguez-Gomez, F. J.:
 Univ Nacl Autonoma Mexico, Fac Quim, Dept Ingn Met, Av Univ 3000, Mexico City 04510, DF, Mexico

Gonzalez-Olvera, R.:
 Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, Av San Pablo 180, Mexico City 02200, DF, Mexico

Angeles-Beltran, D.:
 Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, Av San Pablo 180, Mexico City 02200, DF, Mexico

Mendoza-Espinosa, D.:
 Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, Av San Pablo 180, Mexico City 02200, DF, Mexico

Negron-Silva, G. E.:
 Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, Av San Pablo 180, Mexico City 02200, DF, Mexico
ISSN: 20462069
Editorial
Royal Society of Chemistry, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND, Reino Unido
Tipo de documento: Article
Volumen: 6 Número: 77
Páginas: 72885-72896
WOS Id: 000381490100003