Highly ordered anodic alumina nanofibers fabricated via two distinct anodizing processes

Daiki Nakajima, Tatsuya Kikuchi, Shungo Natsui, Ryosuke O. Suzuki

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Fabrication of high-density, highly ordered anodic alumina nanofibers was demonstrated via two distinct anodizing processes: porous and fibrous oxide formations. Highly ordered aluminum dimple arrays were fabricated via sulfuric/oxalic acid anodizing and selective porous alumina dissolution. Subsequent pyrophosphoric acid anodizing using the nanostructured aluminum surface caused anodic alumina nanofibers to grow preferentially at the six apexes of the ordered hexagonal aluminum dimples under the appropriate electrochemical conditions. Well-defined, high-density, highly ordered anodic alumina nanofibers with 37-75 nm periodic spacing and at densities of 1.4-5.6 × 1014 m-2 were successfully fabricated on the aluminum surface via two distinct anodizing processes.

Original languageEnglish
Pages (from-to)H14-H17
JournalECS Electrochemistry Letters
Volume4
Issue number5
DOIs
Publication statusPublished - 2015
Externally publishedYes

ASJC Scopus subject areas

  • Fuel Technology
  • Electrochemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Highly ordered anodic alumina nanofibers fabricated via two distinct anodizing processes'. Together they form a unique fingerprint.

Cite this