piper longum extract as green corrosion inhibitor for aluminium in naoh solution

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ID: 220058
2016
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Abstract
The inhibiting action of Piper longum seed extracts was investigated as the corrosion inhibitors of aluminium in 1 M NaOH solution using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) methods, and weight loss measurements. The results revealed that P. longum extract was an effective inhibitor, and the inhibition efficiencies obtained from polarization and weight loss experiments were in good agreement. Using the potentiodynamic polarization technique, the extract was proving to have a mixed-type character for aluminium in alkaline solution by suppressing both anodic and cathodic reactions on the metal surface. The adsorption isotherm model was determined according to fitted results obtained from the weight loss experiments performed on the aluminium specimen in 1 M NaOH solution at 308 K. Thermodynamic parameters such as activation energy and free energy of adsorption were calculated and given in kJ mg−1.
Reference Key
singh2016arabianpiper Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Ambrish Singh;Ishtiaque Ahamad;Mumtaz A. Quraishi
Journal Behavioural brain research
Year 2016
DOI
10.1016/j.arabjc.2012.04.029
URL
http://www.sciencedirect.com/science/article/pii/S1878535212000974
Keywords
aluminium plant extract corrosion inhibition

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