Jump to main content
Jump to site search


Surface analysis of the 2-mercaptobenzothiazole corrosion inhibitor on 6082 aluminum alloy using ToF-SIMS and XPS

Author affiliations

Abstract

This work presents a surface analytical study of a very thin surface layer of the 2-mercaptobenzothiazole (MBTH) corrosion inhibitor on 6082 aluminum alloy (automotive material) using time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS). Both techniques confirmed the adsorption of MBTH on the AA6082 surface. A characteristic negative-ion ToF-SIMS signal at m/z 165.98 was found for the MBTH molecule, whereas positive-ion ToF-SIMS spectra were less informative for MBTH. A negative-ion SIMS fragmentation pattern of the MBTH molecule was suggested. ToF-SIMS imaging showed that MBTH forms islands of this corrosion inhibitor on the AA6082 surface with higher concentration (patchy adsorption). XPS measurements suggested that MBTH was adsorbed on the surface via an N–S-bridge configuration. In addition, surface characterization was also performed with atomic force microscopy (AFM), field emission scanning electron spectroscopy (FE-SEM), and energy dispersive X-ray spectroscopy (EDXS).

Graphical abstract: Surface analysis of the 2-mercaptobenzothiazole corrosion inhibitor on 6082 aluminum alloy using ToF-SIMS and XPS

Back to tab navigation

Article information


Submitted
23 Oct 2019
Accepted
12 Dec 2019
First published
12 Dec 2019

Anal. Methods, 2020, Advance Article
Article type
Paper

Surface analysis of the 2-mercaptobenzothiazole corrosion inhibitor on 6082 aluminum alloy using ToF-SIMS and XPS

M. Finšgar, Anal. Methods, 2020, Advance Article , DOI: 10.1039/C9AY02293G

Social activity

Search articles by author

Spotlight

Advertisements