Inhibitor action of ascorbic acid on the corrosion of copper in alkaline medium

Autor:	Sema Çelik, Güray Kılınççeker
Přispěvatelé:	Çukurova Üniversitesi
Rok vydání:	2017
Předmět:	Corrosion Chemistry chemistry.chemical_element Electrochemical techniques Adsorption isotherm Ascorbic acid Copper Nuclear chemistry
Zdroj:	Pamukkale University Journal of Engineering Sciences. 23:861-869
ISSN:	2147-5881 1300-7009
DOI:	10.5505/pajes.2016.83702
Popis:	WOS: 000443172200009 In this study, the effect of Ascorbic acid in the corrosion behaviour of copper has been investigated in 3.5% NaCl solution (pH=9.0) using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Current-potential curve and Nyquist diagrams were obtained in different concentrations of ascorbic acid. The surface morphology of copper after their exposure to 3.5% NaCl solution with and without of ascorbic acid was examined by scanning electron microscopy (SEM). The obtained results show that; ascorbic acid inhibits corrosion of copper in 3.5% NaCl solution. Inhibition activity was determined to increase with decrease in the concentration of ascorbic acid.
Databáze:	OpenAIRE
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