TY - JOUR
T1 - Multiwalled ice helixes and ice nanotubes
AU - Bai, Jaeil
AU - Wang, Jun
AU - Zeng, X. C.
PY - 2006/12/26
Y1 - 2006/12/26
N2 - 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.
AB - 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.
KW - Carbon nanotube
KW - High density nano-ice
KW - Nano-ice helix
UR - http://www.scopus.com/inward/record.url?scp=33845932615&partnerID=8YFLogxK
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U2 - 10.1073/pnas.0608401104
DO - 10.1073/pnas.0608401104
M3 - Article
C2 - 17170136
AN - SCOPUS:33845932615
VL - 103
SP - 19664
EP - 19667
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
SN - 0027-8424
IS - 52
ER -