Individual Alumina Nanotubes

Lin Pu; Ximao Bao; Jianping Zou; Duan Feng

doi:10.1002/1521-3773(20010417)40:8<1490::AID-ANIE1490>3.0.CO;2-K

Individual Alumina Nanotubes

Angew Chem Int Ed Engl. 2001 Apr 17;40(8):1490-1493. doi: 10.1002/1521-3773(20010417)40:8<1490::AID-ANIE1490>3.0.CO;2-K.

Authors

Lin Pu¹, Ximao Bao¹, Jianping Zou¹, Duan Feng¹

Affiliation

¹ National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University Nanjing 210093 (China) Fax: (+86) 25-359-5535.

PMID: 29712365
DOI: 10.1002/1521-3773(20010417)40:8<1490::AID-ANIE1490>3.0.CO;2-K

Abstract

Anodization of aluminum with H₂ SO₄ on an Si substrate results in the formation of individual alumina nanotubes (ANTs). The picture shows an ANT with a length of 650 nm and internal and external diameters of 12 and 35 nm, respectively. Detailed studies by transmission electron microscopy revealed that the ANTs are completely detached cells of the porous anodized aluminum film.

Keywords: aluminum; electrochemistry; nanostructures; oxidations; silicon.