Nano Archive

Multiwalled ice helixes and ice nanotubes

Bai, Jaeil and Wang, Jun and Zeng, X. C. (2006) Multiwalled ice helixes and ice nanotubes. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 103 (52). pp. 19664-19667.

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Official URL: http://www.pnas.org/content/103/52/19664.abstract

Abstract

We report six phases of high-density nano-ice predicted to form within carbon nanotubes (CNTs) at high pressure. High-density nano-ice self-assembled within smaller-diameter CNT (17,0) exhibits a double-walled helical structure where the outer wall consists of four double-stranded helixes, which resemble a DNA double helix, and the inner wall is a quadruple-stranded helix. Four other double-walled nano-ices, self-assembled respectively in two larger diameter CNTs (20,0 and 22,0), display tubular structure. Within CNT (24,0), the confined water can freeze spontaneously into a triple-walled helical nano-ice where the outer wall is an 18-stranded helix and the middle and inner walls are hextuple-stranded helixes.

Item Type:Article
Uncontrolled Keywords:carbon nanotube; high density nano-ice; nano-ice helix
Subjects:Physical Science > Nano objects
Material Science > Nanostructured materials
ID Code:3198
Deposited By:Anuj Seth
Deposited On:26 May 2009 14:19
Last Modified:26 May 2009 14:19

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