Corrosion and Electrochemical Behaviors of Aluminum Anode in Alkaline Ethanol Organic Solution
Received:January 11, 2012   Revised:January 12, 2012   Accepted:January 13, 2012      Published Online:July 25, 2012
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DOI:10.3969/j.issn.1007-7545.2012.08.014
KeyWord:aluminum anode; potassium sodium tartrate; alkaline ethanol organic solution; electrochemical behaviors
        
AuthorInstitution
chenqiyuan 中南大学 化学化工学院
hanxuetao 中南大学 化学化工学院
Hu huiping 中南大学
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Abstract:
      The corrosion and electrochemical behaviors of pure aluminum in 4 mol/L NaOH-ethanol-water mixed solutions with or without potassium sodium tartrate addition were investigated by means of weight loss measurement, Tafel polarization curve and galvanostatic discharge. The results show that hydrogen precipitation of aluminum is largely inhibited in 4 mol/L NaOH-50% ethanol solution, and the corrosion inhibition percentage is 53.09%. The hydrogen evolution corrosion is inhibited by the addition of potassium sodium tartrate in 4 mol/L NaOH ethanol-water solution.
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