The STUDIA UNIVERSITATIS BABE┼×-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

 
       
         
    STUDIA CHEMIA - Issue no. 3 / 2020  
         
  Article:   DOXEPIN AS CORROSION INHIBITOR FOR COPPER IN 3.5 wt. % NaCl SOLUTION.

Authors:  SIMONA VARVARA, ROXANA BOSTAN, MARIA POPA, LUIZA GAINA, FLORIN POPA.
 
       
         
  Abstract:  
DOI: 10.24193/subbchem.2020.3.17

Published Online: 2020-09-30
Published Print: 2020-09-30
pp.215-226
VIEW PDF: FULL PDF

ABSTRACT: The effect of 3-(dibenzo[b,e]oxepin-11(6H)-ylidene)-N,N-dimethylpropane-1-amine (doxepin) on the corrosion behaviour of copper in 3.5 wt.% NaCl solution was investigated by electrochemical techniques, SEM-EDX and quantum chemical calculations. Polarization curves indicate that doxepin acts as a mixed-type inhibitor. Impedance data also prove the anticorrosive proprieties of doxepin, due to its adsorption on the copper surface. The inhibition efficiency of doxepin increases with increasing its concentration, reaching a maximum value of 88.8% at 5 mM. SEM-EDX analysis revealed that doxepin is able to prevent the formation of the oxides on the copper surface. Quantum chemical calculations are in agreement with the results obtained by electrochemical measurements.

Key words: corrosion, copper, doxepin, electrochemical impedance spectroscopy, polarization curve, SEM-EDX, quantum chemical calculations
 
         
     
         
         
      Back to previous page