RT info:eu-repo/semantics/article
T1 Inhibition of the pitting corrosion of 304 stainless steel in 0.5 M hydrochloric acid solution by heptamolybdate ions
A1 Souto, Ricardo Manuel
A1 Ait Albrimi, Y.
A1 Ait Addi, A.
A1 Douch, J.
A1 Hamdani, M.
K1 304 Stainless steel
K1 Pitting
K1 Corrosion inhibition
K1 Heptamolybdate ions
K1 Hydrochloric acid
AB The corrosion inhibition effect of heptamolybdate ions on 304 stainless steel in 0.5 M hydrochloric acid solution at 298 K was investigated using gravimetric, electrochemical and optical microscopy methods. Increasing inhibitor concentration led to significant reduction in the corrosion rate of stainless steel, withinhibitor efficiency values above 90%. The adsorption of the inhibitor onto the steel surface is described using the Langmuir adsorption isotherm. The value of the free energy of adsorption determined at 298 K (ΔG° = -31.1 kJ mol-1) characterizes the adsorption process of heptamolybdate ions on the surface of the metal.
YR 2015
FD 2015
LK http://riull.ull.es/xmlui/handle/915/19063
UL http://riull.ull.es/xmlui/handle/915/19063
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 18-abr-2024