Novel Corrosion Inhibitor for Mild Steel in HCl

Corrosion inhibitory effects of new synthesized compound namely 5,5'- ((1Z,1'Z)-(1,4-phenylenebis(methanylylidene))bis(azanylylidene))bis(1,3,4-thiadiazole-2-thiol) (PBB) on mild steel in 1.0 M HCl was investigated at different temperatures using open circuit potential (OCP), potentiodynam...

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Published inMaterials Vol. 7; no. 2; pp. 662 - 672
Main Authors Al-Amiery, Ahmed A, Kadhum, Abdul Amir H, Alobaidy, Abdul Hameed M, Mohamad, Abu Bakar, Hoon, Pua Soh
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 27.01.2014
MDPI
Subjects
Adsorption
Carbon steels
Corrosion
Corrosion effects
corrosion inhibition
Corrosion inhibitors
EIS
Electrochemical impedance spectroscopy
Inhibition
mild steel
OCP
Open circuit potential
Spectrum analysis
Surface chemistry
Temperature
thiadiazole
Malaysia
thiadiazole
corrosion inhibition
mild steel
OCP
EIS
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Summary:Corrosion inhibitory effects of new synthesized compound namely 5,5'- ((1Z,1'Z)-(1,4-phenylenebis(methanylylidene))bis(azanylylidene))bis(1,3,4-thiadiazole-2-thiol) (PBB) on mild steel in 1.0 M HCl was investigated at different temperatures using open circuit potential (OCP), potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). Results showed that PBB inhibited mild steel corrosion in acid solution and indicated that the inhibition efficiencies increased with the concentration of inhibitor, but decreased proportionally with temperature. Changes in impedance parameters suggested the adsorption of PBB on the mild steel surface, leading to the formation of protective films.
Bibliography:ObjectType-Article-1
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content type line 23
ISSN:1996-1944
1996-1944
DOI:10.3390/ma7020662