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In situ and ex situ studies of imidazole and its derivatives as copper corrosion inhibitors II. AC impedance, XPS, and SIMS studies (CROSBI ID 86445)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Gašparac, Rahela ; Martin, Charles R. ; Stupnišek-Lisac, Ema ; Mandić, Zoran In situ and ex situ studies of imidazole and its derivatives as copper corrosion inhibitors II. AC impedance, XPS, and SIMS studies // Journal of the Electrochemical Society, 147 (2000), 3; 991-998. doi: 10.1149/1.1393302

Podaci o odgovornosti

Gašparac, Rahela ; Martin, Charles R. ; Stupnišek-Lisac, Ema ; Mandić, Zoran

engleski

In situ and ex situ studies of imidazole and its derivatives as copper corrosion inhibitors II. AC impedance, XPS, and SIMS studies

The objectiv of this work was to investigate the efficiency of imidazole derivates for corrosion inhibition of copper in 0.5 M hydrochloric acid. Corrosion inhibition was studied using impedance spectroscopy. Imidazole and its derivates 4-methylimidazole, 4-methy-5-hydroxymethylimidazole, 1-phenyl-4-methylimidazole, 1-(p-tolyl)-4-methylimidazole were investigated. These studies have shown that 1-(p-tolyl)-4-methylimidazole is the best inhibitor in this series and that it acts as mixed inhibtor. The nature of the chemical interaction between these molecules and the copper surface was investigated for Cu exposed to solutions having two different pH values: 0.5 M HCl and unbuffered purified water. X-ray photoelectron spectroscopy and secondary ion mass spectrometry were used to explore the nature of the interaction. Possible mechanisms of corrosion inhibition for these molecules are discussed.

copper ; hydrocloric acid ; imidazoles ; EIS ; XPS ; SIMS

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Podaci o izdanju

147 (3)

2000.

991-998

objavljeno

0013-4651

1945-7111

10.1149/1.1393302

Povezanost rada

Kemijsko inženjerstvo

Poveznice
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