5-merkapto-1-fenil-tetrazol inhibitorhatásának vizsgälata elektrogravimetriás és pásztázó alagútmikroszkópos módszerekkel

Gyöngyi Vastag, Edit Szocs, A. Shaban, Géza Konczos, E. Kálmán

Research output: Contribution to journalArticle

Abstract

Investigation of 5-mercapto-1-phenyltetrazole inhibition properties by using EQCM and EC-STM techniques The mechanism of copper corrosion and its inhibition have been studied using electrochemical techniques, in-situ electrochemical scanning tunneling microscopy (EC-STM) and electrochemical quartz crystal microbalance (EQCM) methods. The morphological changes of Cu(111) were followed in 0.1 mol.dm-3 Na2SO4 solution at pH=2.95. The adsorption, orientation and ordering of 5-mercapto-l-phenyl-tetrazole (5-MPhTT) at different concentrations have been studied. The anodic dissolution of copper in 0.1 mol.dm-3 Na2SO4 was clearly modified and hindered by the addition of 5-MPhTT. The anodic current density was reduced sharply due to the adsorption of the inhibitor on the metal surface thus providing protection. QCM data revealed that the addition of the inhibitor to the aggressive solution did not cause a continuous increase of the electrode mass. This fact indicates that the inhibition of copper corrosion was due to the adsorption of a monolayer.

Original languageHungarian
Pages (from-to)110-117
Number of pages8
JournalMagyar Kemiai Folyoirat, Kemiai Kozlemenyek
Volume106
Issue number3
Publication statusPublished - 2000

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

5-merkapto-1-fenil-tetrazol inhibitorhatásának vizsgälata elektrogravimetriás és pásztázó alagútmikroszkópos módszerekkel. / Vastag, Gyöngyi; Szocs, Edit; Shaban, A.; Konczos, Géza; Kálmán, E.

In: Magyar Kemiai Folyoirat, Kemiai Kozlemenyek, Vol. 106, No. 3, 2000, p. 110-117.

Research output: Contribution to journalArticle

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