Evidence of a single-wall platinum nanotube
- 1 March 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 65 (12), 121401
- https://doi.org/10.1103/physrevb.65.121401
Abstract
A suspended platinum nanowire was observed to have the same helical multishell structure (HMS) that was reported for gold nanowires thinner than 2 nm. The investigation was made in an ultrahigh vacuum high-resolution electron microscope (JEM-2000VF). The platinum nanowire was synthesized by an electron-beam thinning method at elevated temperatures to enhance the Pt atom migration. A platinum multishell nanowire was thinned by migration until it finally snapped. In the meantime, the outer shell was stripped from a 13-6 HMS to partially expose the inner shell. Simulated electron microscope images supported that the exposed inner shell was a single-wall tube having a tunnel at the wire axis.Keywords
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