物理化学学报 >> 2001, Vol. 17 >> Issue (05): 393-396.doi: 10.3866/PKU.WHXB20010503

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单壁碳纳米管在金表面的图形化组装

南小林;张锦;刘忠范;施祖进;顾镇南   

  1. 北京大学纳米科技中心,化学学院,北京 100871
  • 收稿日期:2001-02-20 修回日期:2001-03-21 发布日期:2001-05-15
  • 通讯作者: 刘忠范

Patterned Assembly of Shortened SingleWalled Carbon Nanotubes on Gold Surface

Nan Xiao-Lin;Zhang Jin;Liu Zhong-Fan;Shi Zu-Jin;Gu Zhen-Nan   

  1. Center for Nanoscale Science and Technology (CNST), College of Chemistry, Peking University, Beijing 100871, P.R.China
  • Received:2001-02-20 Revised:2001-03-21 Published:2001-05-15
  • Contact: Liu Zhong-Fan

摘要: 利用湿法化学组装技术在金表面得到了图形化的单壁碳纳米管阵列.在混酸氧化条件下,初合成的交缠状态的单壁纳米管被截短成带有羧基等功能化末端的短管.这些功能化的短管在缩合剂DCC的作用下与氨基/甲基图形化表面进行缩合反应时,纳米管将选择性地结合到氨基区域从而形成规则的纳米管阵列.

关键词: 单壁碳纳米管, 表面反应, 图形化组装, 金表面

Abstract: Patterned arrays of shortened singlewalled carbon nanotubes(sSWNTs) on gold were prepared using a surface reaction method. Under the existence of a condensation reagent, dicyclohexyl carbodiimide (DCC), sSWNTs terminated with carboxylic groups were found to react with the NH2(CH2)11SH selfassembled monolayers (SAMs) on gold readily, but could rarely be adsorbed on a CH3terminated surface. Thus by using a patterned surface with both NH2 and CH3 groups, sSWNTs were immobilized only on NH2 areas, resulting in a patterned array of sSWNTs.

Key words: Shortened single-walled carbon nanotubes (s-SWNTs), Surface reaction, Patterned assembly, Gold surface