碳纳米管
材料科学
纳米技术
纳米管
结晶学
化学物理
化学工程
化学
工程类
作者
Yutaka Maniwa,Hiromichi Kataura,Masatoshi Abe,Asako Udaka,Shinzo Suzuki,Yohji Achiba,H. Kira,Kazuyuki Matsuda,Hiroaki Kadowaki,Yutaka Okabe
标识
DOI:10.1016/j.cplett.2004.11.112
摘要
Abstract We report on a systematic X-ray diffraction analysis for the ordered water inside single-walled carbon nanotubes (SWNTs) with diameters of 10.9–15.2 A. Four distinct ordered structures identified in this diameter range were assigned to polygonal ice-nanotubes predicted by molecular dynamics (MD) calculations. The ordering transition temperature rose from 190 K of octagonal ice-nanotubes to 300 K of pentagonal ice-nanotubes without applying high pressure when the SWNT diameter decreased. The results indicate a crossover from bulk to atomic scale phenomena with decreasing SWNT diameter.
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