Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Anodic Growth of Large Inner Diameter TiO2 Nanotubes

TiO2 나노튜브 내경 확장을 위한 양극산화 조건

  • Lee, Hyeon-Kwon (School of Nano & Materials Science and Engineering, Kyungpook National University) ;
  • Oh, Hyunchul (Department of Energy Engineering, Gyeongnam National University of Science and Technology(GNTECH)) ;
  • Lee, Kiyoung (School of Nano & Materials Science and Engineering, Kyungpook National University)
  • 이현권 (경북대학교 나노소재공학부) ;
  • 오현철 (경남과학기술대학교 에너지공학과) ;
  • 이기영 (경북대학교 나노소재공학부)
  • Received : 2018.01.23
  • Accepted : 2018.01.31
  • Published : 2018.02.28
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Abstract

In the present work, we demonstrate the feasibility to form large inner diameter $TiO_2$ nanotubes by anodization of Ti in a HF/ethylene glycol electrolyte. In order to achieve the large inner diameter $TiO_2$ nanotubes, optimization of the anodization condition is required. We discover the key factors in the formation of large inner diameter $TiO_2$ nanotubes are concentration of water in the electrolyte, anodization temperatures, and high-applied potential. Under optimum conditions, the inner diameters of $TiO_2$ nanotubes are 379 nm. The results are approximately 3 folders larger than the general case.

Keywords

References

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