Electrodeposition of Crystalline Aluminium on Carbon Steel in Aluminium Chloride – Trimethylphenyl Ammonium Chloride Ionic Liquid

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Abstract

Aluminium electrodeposition on carbon steel is performed potentiostatically and galvanostatically from aluminium chloride – trimethylphenylammonium chloride room temperature ionic liquid (RTIL). The influence of the electrochemical parameters and temperature on the coating composition, morphology and
corrosion resistance is studied. For each experimental condition, the coatings are composed of metallic crystalline aluminium, contain a small amount of chlorine and a few RTIL cations remain weakly adsorbed on their surface. It is shown that temperature increase favors the growth of aluminium coating but to the detriment of the nucleation and well covering coatings. The galvanostatically formed coatings at low temperature present a corrosion resistance close to that of aluminium.
Original languageEnglish
Pages (from-to)652-661
Number of pages10
JournalProtection of Metals and Physical Chemistry of Surfaces
Volume54
Issue number4
DOIs
Publication statusPublished - 1 Jul 2018

Keywords

  • electrodeposition
  • room temperature ionic liquid
  • aluminium coating
  • corrosion inhibition

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