Journal of Electrochemical Science and Technology

  • 제10권3호
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  • Pages.271-275
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  • 2019
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  • 2093-8551(pISSN)
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  • 2288-9221(eISSN)
한국전기화학회 (The Korean Electrochemical Society)
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RuO2-Doped TiO2 Nanotube Membranes Prepared via a Single-Step/Potential Shock Sequence

  • Yoo, Hyeonseok (Department of Chemistry and Chemical Engineering, Center for Design and Applications of Molecular Catalysts, Inha University) ;
  • Seong, Mijeong (Department of Chemistry and Chemical Engineering, Center for Design and Applications of Molecular Catalysts, Inha University) ;
  • Choi, Jinsub (Department of Chemistry and Chemical Engineering, Center for Design and Applications of Molecular Catalysts, Inha University)
  • 투고 : 2018.12.03
  • 심사 : 2019.03.05
  • 발행 : 2019.09.30
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초록

Anodic $TiO_2$ nanotubes were simultaneously grown and doped with $RuO_2$ by single-step anodization in a negatively-charged $RuO_4{^-}$ precursor. Subsequently, a high positive voltage was imposed on the nanotubes in an $F^-$-based electrolyte (a process referred to as potential shock), which led to the formation of a through-hole $RuO_2$-doped $TiO_2$ nanotube membrane without significant loss of the $RuO_2$ catalyst. XPS results confirmed that the doped Ru metal was converted into $RuO_2$ as the potential shock voltage increased. Further increases in the potential shock voltage led to the formation of $RuO_x/Ru$ in the $TiO_2$ nanotubes. All of our results clearly showed that a through-hole catalyst-doped $TiO_2$ nanotube membrane can be produced by a sequence consisting of single-step anodization and the potential shock process.

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참고문헌

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