Synthesis of 1,2,3-triazoles in the presence of mixed Mg/Fe oxides and their evaluation as corrosion inhibitors of API 5L X70 steel submerged in HCl
Por:
Espinoza-Vazquez, A., Rodriguez-Gomez, F. J., Vergara-Arenas, B. I., Lomas-Romero, L., Angeles-Beltran, D., Negron-Silva, G. E., Morales-Serna, J. A.
Publicada:
1 ene 2017
Resumen:
In this work, the catalytic capacity of a Mg/Fe layered double hydroxide
(LDH) and its mixed oxides to perform Huisgen cycloaddition was studied.
The catalytic process was performed in the presence of sodium ascorbate,
which was determinant for the success of the 1,3-cycloaddition. The
obtained triazoles were evaluated as corrosion inhibitors using
electrochemical impedance spectroscopy under static conditions, showing
an inhibition efficiency higher than 95% at 50 ppm for some of the
triazoles studied. According to the Langmuir isotherm, all the compounds
synthesized and analysed exhibit a chemisorption process. Finally, the
corrosion process when submerging a steel bar in 1 M HCl was studied
using SEM-EDS. This experiment showed that the corrosion process
decreases considerably in the presence of 50 ppm of the organic
inhibitor.
Filiaciones:
Univ Nacl Autonoma Mexico, Dept Ingn Met, Fac Quim, Ave Univ 3000, Mexico City 04510, DF, Mexico
Univ Autonoma Metropolitana Iztapalapa, Dept Quim, Ave San Rafael Atlixco 186, Mexico City 09340, DF, Mexico
Univ Autonoma Metropolitana Azcapotzalco, Dept Ciencias Basicas, Ave San Pablo 180, Mexico City 02200, DF, Mexico
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