The effect of passivated potential on the passive films formed on pure chromium in borate buffer solution

Lv Jinlong, Liang Tongxiang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The effect of passivated potential on corrosion resistance of the chromium in borate buffer solution was investigated. The electrochemical results showed that corrosion resistance of the passive film on the chromium electrode decreased with the increasing of passivated potential. The Mott–Schottky analysis showed that more acceptor concentrations in passive film due to higher passivated potential deteriorated corrosion resistance of the chromium electrode. The results from XPS showed that more chromium hydroxides were formed in higher passivated potential, while less chromium oxides were formed. More acceptor concentrations in passive films reduced corrosion resistance of the chromium electrode in borate buffer solution.

Original languageEnglish
Pages (from-to)533-537
Number of pages5
JournalSurface and Interface Analysis
Volume49
Issue number6
DOIs
Publication statusPublished - 2017 Jun

Keywords

  • EIS
  • Mott–Schottky analysis
  • XRD
  • chromium
  • passive films

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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