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单壁碳纳米管通过可逆循环的直径选择性溶解

Alfonso Ortiz-Acevedo¹, Hui Xie, Vasiliki Zorbas

¹Department of Chemistry, NanoTech Institute, The University of Texas at Dallas, 2601 North Floyd Road, Richardson, Texas 75083-0688, USA.

Journal of the American Chemical Society

|June 30, 2005

概括

可逆循环 (RCPs) 用于在水中溶解和功能化单壁碳纳米管 (SWNTs). 这种方法允许对SWNT进行直径选择性溶解,为纳米材料应用提供了新的可能性.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
生物化学生物化学

背景情况:

单壁碳纳米管 (SWNTs) 由于其疏水性质,难以在水溶液中加工.
功能化对于为特定应用量身定制SWNT属性至关重要.
开发高效且无害的溶化方法对于推进SWNT研究至关重要.

研究的目的:

开发一种在水溶液中溶解和功能化单壁碳纳米管 (SWNT) 的方法.
为此目的研究可逆循环 (RCPs) 的使用.
探索基于RCP的溶解过程的直径选择性.

主要方法:

使用可逆循环 (RCPs) 与含有硫醇的组进行循环.
应用RCP包装和功能化SWNTs在水溶液中.
采用UV/vis/NIR和拉曼光谱仪,以及原子力显微镜,用于表征.

主要成果:

在使用RCPs的水溶液中成功地溶解和非性功能化SWNT.
证明RCP包裹在SWNT周围,通过头到尾共价键形成闭环.
通过控制 RCP 长度来实现 SWNT 的直径选择性溶解.

结论:

可逆循环为SWNTs的水溶化和功能化提供了有效的手段.
基于RCP的方法在溶解过程中可以控制SWNT直径的选择.
这种方法为SWNT在各种领域的定制应用开辟了道路.

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