Jump to main content
Jump to site search

Issue 19, 2005
Previous Article Next Article

Inhibitive properties, adsorption and surface study of butyn-1-ol and pentyn-1-ol alcohols as corrosion inhibitors for iron in HCl

Author affiliations

Abstract

The inhibiting effect of several acetylenic alcohols, namely 2-butyn-1-ol, 3-butyn-1-ol, 3-pentyn-1-ol and 4-pentyn-1-ol has been investigated on the corrosion of iron in 1 M HCl. The Tafel extrapolation method, linear polarization resistance and electrochemical impedance spectroscopy illustrate their inhibiting effect. Results show that all of these compounds suppress both the anodic and cathodic process, i.e., they are mixed-type inhibitors. The changes of charge transfer resistance are indicative of adsorption and inhibition. This effect increases with time over a 16 h period. Equivalent circuits are suggested as a model for the impedance spectra. The inhibition efficiency of the alkynol depends on the length of the carbon chain and the position of the triple bond. Some structural and electronic effects are discussed in relation to the inhibiting efficiencies. Determination of the chemical speciation, as well as elemental ratio were obtained via XPS and morphological changes were monitored by SEM.

Graphical abstract: Inhibitive properties, adsorption and surface study of butyn-1-ol and pentyn-1-ol alcohols as corrosion inhibitors for iron in HCl

Back to tab navigation

Publication details

The article was received on 19 Oct 2004, accepted on 17 Mar 2005 and first published on 30 Mar 2005


Article type: Paper
DOI: 10.1039/B416202A
Citation: J. Mater. Chem., 2005,15, 1908-1916
  •   Request permissions

    Inhibitive properties, adsorption and surface study of butyn-1-ol and pentyn-1-ol alcohols as corrosion inhibitors for iron in HCl

    K. Babic-Samardzija, C. Lupu, N. Hackerman and A. R. Barron, J. Mater. Chem., 2005, 15, 1908
    DOI: 10.1039/B416202A

Search articles by author

Spotlight

Advertisements