engleski

Spectroscopic analysis and in situ adsorption of 2-mercaptobenzothiazole corrosion inhibitor on Zn from a chloride solution

This work describes the surface analytical characterization of 2-mercaptobenzothiazole (MBTH), which is considered to be a corrosion inhibitor for zinc and was adsorbed on the surface from 3 wt% NaCl. First, tandem (MS/MS) time-of- flight secondary ion mass spectrometry (ToF-SIMS) was employed to determine the signal that corresponds to the parent ion MBTH molecule in negative and positive polarities. The properties of the MBTH surface layer were investigated by gas cluster ion beam (GCIB) sputtering associated with X-ray photoelectron spectroscopy (XPS) and ToF- SIMS measurements. The optical functions and thickness of the films forming were determined by the time-resolved in situ spectroscopic ellipsometry, revealing the growth mechanism of the adorbates.

Zinc ; 2-mercaptobenzothiazole ; Corrosion inhibitor ; Tandem ToF-SIMS ; XPS ; Ellipsometry

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