inhibition of mild steel corrosion in hydrochloric acid solution by new coumarin

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ID: 203638
2014
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Abstract
A new coumarin derivative, N,N′-((2E,2′E)-2,2′-(1,4-phenylenebis (methanylylidene))bis(hydrazinecarbonothioyl))bis(2-oxo-2H-chromene-3-carboxamide) PMBH, was synthesized and its chemical structure was elucidated and confirmed using spectroscopic techniques (Infrared spectroscopy IR, Proton nuclear  magnetic resonance, 1H-NMR and carbon-13 nuclear magnetic resonance 13C-NMR). The corrosion inhibition effect of PMBH on mild steel in 1.0 M HCl was investigated using corrosion potential (ECORR), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and electrochemical frequency modulation (EFM) measurements. The obtained results indicated that PMBH has promising inhibitive effects on the corrosion of mild steel in 1.0 M HCl across all of the conditions examined. Scanning electron microscopy (SEM) was used to investigate the morphology of the mild steel before and after immersion in 1.0 M HCl solution containing 0.5 mM of PMBH. Surface analysis revealed improvement of corrosion resistance in presence of PMBH.
Reference Key
kadhum2014materialsinhibition Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Abdul Amir H. Kadhum;Abu Bakar Mohamad;Leiqaa A. Hammed;Ahmed A. Al-Amiery;Ng Hooi San;Ahmed Y. Musa
Journal Nature Materials
Year 2014
DOI
10.3390/ma7064335
URL
http://www.mdpi.com/1996-1944/7/6/4335
Keywords
coumarin corrosion inhibitor electronics civil engineering (general)microscopydescriptive and experimental mechanics nuclear engineeringengineering (general)

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