Electro-chemical detachment process of through-hole porous anodic alumina membrane

Lu Mei Gao, Pang Pang Wang, Xiao Qing Wu, Xiao Ping Song

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A well-ordered porous anodic alumina (PAA) membrane was achieved by anodic oxidization of the aluminium electrode at constant voltages of 30-50 V in a solution of 0.3 mol·L-1 H2C2O4. A new electrical detachment process was carried out to detach the PAA membranes from aluminium base in the solution of HClO4 and CH3OH. The mechanism of the electrical detachment process and the factors of the pore diameter and thickness of the barrier layer were researched. A larger size of PAA (2 cm × 2 cm) was obtained with thickness of 30-100 μm and full-controlled open-hole pores. Compared with reported chemical process, the present method is more simple and rapid and free of metal ions residues. It is important for research of nanostructure assembling techniques.

Original languageEnglish
Pages (from-to)1417-1422
Number of pages6
JournalWuji Cailiao Xuebao/Journal of Inorganic Materials
Issue number6
Publication statusPublished - Nov 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Inorganic Chemistry


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