Multiwalled ice helixes and ice nanotubes

被引：158

作者：

Bai, Jaeil

Wang, Jun

Zeng, X. C. ^{[1
]}

机构：

[1] Univ Nebraska, Dept Chem, Lincoln, NE 68588 USA

[2] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2006年 / 103卷 / 52期

关键词：

carbon nanotube; high density nano-ice; nano-ice helix;

D O I：

10.1073/pnas.0608401104

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

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页码：19664 / 19667

页数：4

相关论文

共 30 条

[11] How does water freeze inside carbon nanotubes? [J].

Koga, K ;

Gao, GT ;

Tanaka, H ;

Zeng, XC .

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2002, 314 (1-4) :462-469

[12] Anomalously soft dynamics of water in a nanotube: A revelation of nanoscale confinement [J].

Kolesnikov, AI ;

Zanotti, JM ;

Loong, CK ;

Thiyagarajan, P ;

Moravsky, AP ;

Loutfy, RO ;

Burnham, CJ .

PHYSICAL REVIEW LETTERS, 2004, 93 (03) :035503-1

[13] Grain size-sensitive creep in ice II [J].

Kubo, T ;

Durham, WB ;

Stern, LA ;

Kirby, SH .

SCIENCE, 2006, 311 (5765) :1267-1269

[14] The structure of a new phase of ice [J].

Lobban, C ;

Finney, JL ;

Kuhs, WF .

NATURE, 1998, 391 (6664) :268-270

[15] A five-site model for liquid water and the reproduction of the density anomaly by rigid, nonpolarizable potential functions [J].

Mahoney, MW ;

Jorgensen, WL .

JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (20) :8910-8922

[16] A coarse-grained model of water confined in a hydrophobic tube [J].

Maibaum, L ;

Chandler, D .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (05) :1189-1193

[17] Dynamics of water confined in single- and double-wall carbon nanotubes [J].

Mamontov, E. ;

Burnham, C. J. ;

Chen, S. -H. ;

Moravsky, A. P. ;

Loong, C. -K. ;

de Souza, N. R. ;

Kolesnikov, A. I. .

JOURNAL OF CHEMICAL PHYSICS, 2006, 124 (19)

[18] Ordered water inside carbon nanotubes: formation of pentagonal to octagonal ice-nanotubes [J].

Maniwa, Y ;

Kataura, H ;

Abe, M ;

Udaka, A ;

Suzuki, S ;

Achiba, Y ;

Kira, H ;

Matsuda, K ;

Kadowaki, H ;

Okabe, Y .

CHEMICAL PHYSICS LETTERS, 2005, 401 (4-6) :534-538

[19] Phase transition in confined water inside carbon nanotubes [J].

Maniwa, Y ;

Kataura, H ;

Abe, M ;

Suzuki, S ;

Achiba, Y ;

Kira, H ;

Matsuda, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2002, 71 (12) :2863-2866

[20] Water alignment and proton conduction inside carbon nanotubes [J].

Mann, DJ ;

Halls, MD .

PHYSICAL REVIEW LETTERS, 2003, 90 (19) :4-195503