Inhibition Efficiency of Cinnamon Oil as a Green Corrosion Inhibitor

  • Mohamed Monder Bouraoui
  • Samia Chettouh
  • Toufik Chouchane
  • Nabila KhellafEmail author


The corrosion inhibition efficiency of cinnamon oil for stainless steel 304 L in 0.1 and 1.0 M HCl solutions was investigated using electrochemical study and surface electronic observation. The potentiodynamic polarization curves showed that, independently of the time of immersion in 1.0% HCl, a reaction to the anode occurred, which was explained by the dissolution of the metal due to the strong aggressiveness of the medium; the addition of 1% cinnamon oil led to a corrosion efficiency of 84%. Furthermore, in 0.1 M aggressive medium the tests with addition of inhibitor showed that the inhibition efficiency increases (86.6–96.0%) with an increase in the cinnamon oil concentration from 0.5 to 5%. Scanning electron microscope observations of metal surface confirmed the existence of a protective adsorbed film of the inhibitor on the steel surface. Cinnamon oil can be proposed as an efficient green inhibitor of corrosion of stainless steel exposed to hydrochloric acid mediums.

Graphical Abstract


Aggressive medium Cinnamon oil Corrosion inhibitor Stainless steel 



Staff of corrosion laboratory of the Research Unit URSM-CRTI, Annaba, is gratefully acknowledged.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Process Engineering, Faculty of EngineeringLOMOP, Badji Mokhtar UniversityAnnabaAlgeria
  2. 2.URASM-CRTIAnnabaAlgeria

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