Anodic dissolution of titanium oxycarbide TiCxO1-x with different O/C ratio

Xiaohui Ning, Jiusan Xiao, Shuqiang Jiao, Hongmin Zhu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The performance of TiCxO1-x solid solutions with different O/C ratio serving as the anode in electrolysis cell was investigated in NaCl-KCl molten salt. It was found that the electrochemical dissolution occurs from the same potential for all the TiCxO1-x. The valance of the dissolved titanium ion depends on the potential applied. Both the dissolution ratio of titanium and the by-product of the anode reaction are dependent on the composition of the anode TiCxO1-x. For high carbon TiCxO1-x (x>0.5), all the titanium in TiCxO1-x dissolves as titanium ions with carbon monoxide (CO) and carbon (C) as the by-products. For low carbon TiCxO1-x (x<0.5), carbon monoxide and carbon dioxide (CO2) were detected in anodic gas, titanium partially dissolves as titanium ion and the remaining forms Ti2O3. The dissolution ratio of titanium decreases with the increase of oxygen in TiCxO1-x.

Original languageEnglish
Pages (from-to)E22-E28
JournalJournal of the Electrochemical Society
Volume166
Issue number2
DOIs
Publication statusPublished - 2019 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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