TY - JOUR
T1 - Evaluation of the corrosion inhibiting effect of an ionic liquid (N-dimethyl-N-di(cocoalkyl) ammonium methyl sulfate) on API 5L X52 steel in hydrochloric acid
AU - Arellanes-Lozada, Paulina
AU - Olivares-Xometl, Octavio
AU - Likhanova, Natalya V.
AU - Lijanova, Irina
AU - Ramírez-Garnica, M. A.
AU - Arce-Estrada, Elsa M.
N1 - Publisher Copyright:
© 2015 The Authors.
PY - 2015
Y1 - 2015
N2 - In the present work, the ionic liquid (IL) N-dimethyl-N-di(cocoalkyl) ammonium methyl sulfate (DCA) was tested as a corrosion inhibitor (CI). The tests were carried out in 1 M solutions of hydrochloric acid (HCl) in order to inhibit the corrosion of API 5L X-52 steel. The maximum inhibition efficiency (IE) was obtained at 4 h and 50 °C within the 96-99% interval and IE was obtained at 0 h and 30 °C within the 50-94% interval. The tests indicated that DCA inhibited the steel corrosion and worked as a mixed-type inhibitor, where the molecular adsorption on steel was described by the Langmuir isotherm, whereas thermodynamics suggested that a physisorption process occurred.
AB - In the present work, the ionic liquid (IL) N-dimethyl-N-di(cocoalkyl) ammonium methyl sulfate (DCA) was tested as a corrosion inhibitor (CI). The tests were carried out in 1 M solutions of hydrochloric acid (HCl) in order to inhibit the corrosion of API 5L X-52 steel. The maximum inhibition efficiency (IE) was obtained at 4 h and 50 °C within the 96-99% interval and IE was obtained at 0 h and 30 °C within the 50-94% interval. The tests indicated that DCA inhibited the steel corrosion and worked as a mixed-type inhibitor, where the molecular adsorption on steel was described by the Langmuir isotherm, whereas thermodynamics suggested that a physisorption process occurred.
KW - Acidic medium
KW - Corrosion inhibitors
KW - Ionic liquids
KW - Potentiodynamic polarization
KW - Steel
UR - http://www.scopus.com/inward/record.url?scp=84929427980&partnerID=8YFLogxK
M3 - Artículo
SN - 1452-3981
VL - 10
SP - 2776
EP - 2790
JO - International Journal of Electrochemical Science
JF - International Journal of Electrochemical Science
IS - 3
ER -