J Mater Sci Technol ›› 2007, Vol. 23 ›› Issue (03): 427-429.

• Research Articles • Previous Articles     Next Articles

Quantificational Etching of AAO Template

Guojun SONG, Dong CHEN, Zhi PENG, Xilin SHE, Jianjiang LI, Ping HAN   

  1. Institute of Polymer Materials, Qingdao University, Qingdao 266071, China
  • Received:2006-01-13 Revised:2006-04-14 Online:2007-05-28 Published:2009-10-10
  • Contact: Guoqun SONG

Abstract: Ni nanowires were prepared by electrodeposition in porous anodized aluminum oxide (AAO) template from a composite electrolyte solution. Well-ordered Ni nanowire arrays with controllable length were then made by the partial removal of AAO using a mixture of phosphoric acid and chromic acid (6 wt pct H3PO4: 1.8 wt pct H3CrO4). The images of Ni nanowire arrays were studied by scanning electron microscopy (SEM) to determine the relationship between etching time and the length of Ni nanowire arrays. The results indicate that the length of nanowires exposed from the template can be accurately controlled by controlling etching time.

Key words: Nanowire arrays, Anodized aluminum oxide (AAO), Controllable etching