Nb2O5 deposition on aluminum from NbCl 5-used sol and anodizing of Nb2O5-coated Al

Shun Koyama, Tatsuya Kikuchi, Masatoshi Sakairi, Hideaki Takahashi, Shinji Nagata

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Formation of Nb2O5 films on aluminum was attempted by sol-gel coating, using NbCl5 as a precursor. The structure and the dielectric properties of anodic oxide films formed on aluminum by sol-gel coating and the subsequent anodizing were examined. Anodic oxide film formed by this process was composed of an inner Al2O3 layer and an outer Nb2O5 layer. The capacitance of the anodic oxide films formed on Nb2O5-coated specimens was at most 34 % higher than that of anodic oxide films on aluminum without coating.

Original languageEnglish
Pages (from-to)573-575
Number of pages3
Issue number8
Publication statusPublished - 2007 Aug


  • Aluminum electrolytic capacitor
  • Anodizing
  • Sol-Gel coating

ASJC Scopus subject areas

  • Electrochemistry


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