Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Formation of Nb2O5 Microcone Structure in NaF Electrolyte by Anodization

NaF 전해질 양극산화에 의한 마이크로콘 구조 니오븀 산화물 제조

  • Jeong, Bong-Yong (Future Convergence Ceramic Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Jung, Eun-Hye (Department of Chemical Engineering, Inha University)
  • 정봉용 (한국세라믹기술원 미래융합세라믹본부) ;
  • 정은혜 (인하대학교 화학공학과)
  • Received : 2011.10.10
  • Accepted : 2011.10.17
  • Published : 2011.11.30
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Abstract

In this study, we show that by anodization of Nb in NaF electrolytes microcone niobium oxide layers can be formed under a range of experimental conditions. It is found that a single NaF electrolyte leads to the formation of microcones. At 1 M NaF, 40 V, 1 h, well-ordered microcones were generated on Nb discs. XRD results show that the initially formed anodic oxide is amorphous, but an amorphous to crystalline transition occurs during anodization. For the formation of favorable microcones, it is considered that proper parameters such as electrolyte concentration, voltage, anodizing time are necessary according to the kind of electrolytes.

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References

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