Molecular Dynamics Simulation of Water Confined in Carbon Nanotubes

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2007,（11）
• 页码范围: 3276-3279
• 页数: 4页
• 语种: 英文

摘要

Molecular dynamics simulations are performed for water conGned in carbon nanotubes with various diameters (11.0-13.8 A). The simulations under an isobaric pressure (one atmosphere) by lowering temperatures from 300K to 190 K are carried out. Water molecules within variously sized tubes tend to transform from disorder to order with different configurations (four-water-molecule ring, six-water-molecule ring and seven-water-molecule ring) at phase transition temperatures, which may be lowered by the increasing tube radius. It is also found that the configurations of water in (10, 10) tube are not unique (seven-molecule ring and seven-molecule ring plus water chain).