Influence of 5-Chlorobenzotriazole on Inhibition of Copper Corrosion in Acid Rain Solution.
Journal
ACS omega
ISSN: 2470-1343
Titre abrégé: ACS Omega
Pays: United States
ID NLM: 101691658
Informations de publication
Date de publication:
09 Jun 2020
09 Jun 2020
Historique:
received:
07
02
2020
accepted:
29
04
2020
entrez:
18
6
2020
pubmed:
18
6
2020
medline:
18
6
2020
Statut:
epublish
Résumé
This paper aims to examine the efficiency of 5-chlorobenzotriazole (5Cl-BTA) as a copper corrosion inhibitor in acidic rain solutions with a pH value of 2.42 by the electrochemical polarization method. 5-Chlorobenzotriazole acts similar to a mixed type inhibitor, according to the potentiodynamic polarization measurements. Results obtained in this research suggest that 5Cl-BTA is a good inhibitor; it decreases anodic and cathodic reaction rates, and the highest inhibition efficiency was 91.2%. The inhibitory effect of 5-chlorobenzotriazole is explained by the formation of the layer on the copper surface. Stability of the protective layer increased with inhibitor concentration. Scanning electron microscopy and energy-dispersive analysis of X-rays analysis confirmed that on the electrode surface, a protective layer was formed. Adsorption of 5Cl-BTA obeys the Langmuir adsorption isotherm. 5Cl-BTA showed good inhibitory characteristics even when the Cl
Identifiants
pubmed: 32548467
doi: 10.1021/acsomega.0c00553
pmc: PMC7288561
doi:
Types de publication
Journal Article
Langues
eng
Pagination
12832-12841Informations de copyright
Copyright © 2020 American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
Références
Proc Natl Acad Sci U S A. 1986 Nov;83(22):8440-1
pubmed: 16578791
J Colloid Interface Sci. 2007 May 15;309(2):470-7
pubmed: 17346723
J Am Chem Soc. 2010 Nov 24;132(46):16657-68
pubmed: 21033661
Materials (Basel). 2018 Oct 26;11(11):
pubmed: 30373148