Corrosion inhibition of dissymmetric bis-quaternary ammonium with imidazoline ring on Q235 steel in 1.0 mol-L hydrochloric acid solution

  • Bin Jiang*
  • , Min Du
  • , Jing Zhang
  • , Zhao Dong Sun
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Dissymmetric bis-quaternary ammonium with imidazoline ring was evaluated for corrosion inhibition efficiency against Q235 steel in l.0mol·L -1hydrochloric acid solution at room temperature (298K) by gravimetric method, potentiodynamic polarization, electrochemical impedance spect- rum(EIS) and quantum chemical calculation. The results of mass loss and polarization data showed the compound acted as a very good mix-up inhibitor for Q235 steel in l.mol·L-1hydrochloric acid solution. EIS results showed that the associated values of the charge transfer resistance (R ct) increase by increasing the additive concentrations and immersing time whereas the associated values of double layer capacitance (Cd1) decrease. These changes in the impedance parameters (Rct and C d1) are indicative of adsorption of the compound on Q235 steel surface leading to the formation of a protective film. The obtained correlations and Quantum chemical calculations conclusions agree well with the experimental results.

Original languageEnglish
Title of host publicationMulti-Functional Materials and Structures II
Pages1063-1066
Number of pages4
DOIs
StatePublished - 2009
Externally publishedYes
Event2nd International Conference on Multi-Functional Materials and Structures, MFMS-2009 - Qingdao, China
Duration: 9 Oct 200912 Oct 2009

Publication series

NameAdvanced Materials Research
Volume79-82
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Multi-Functional Materials and Structures, MFMS-2009
Country/TerritoryChina
CityQingdao
Period9/10/0912/10/09

Keywords

  • Acid media
  • Corrosion inhibitor
  • Dissymmetric bis-quaternary ammonium
  • Quantum chemistry calculations

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