Method for treating carbon nanotubes, carbon nanotubes and carbon nanotubes device comprising thereof

US8231854B2 · kind B2 · utility

Assignee

• SONY GROUP CORPORATION · JP

Inventors

• Hisashi Kajiura · Yokohama, JP
• Yongming Li · Chengdu, CN
• Xianglong Li · Shanghai, CN
• Yunqi Liu · Qingdao, CN
• Lingchao Cao · Beijing, CN
• Lei Fu · Beijing, CN
• Dacheng Wei · Beijing, CN
• Yu-Ting Wang · Centerville, US
• Daoben Zhu · Beijing, CN

Key dates

• Filing date: Nov 13, 2008
• Grant date: Jul 31, 2012
• Expiry date: Jan 9, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/845
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

An efficient and cost-effective method for treating carbon nanotubes (CNTs) is provided. The method includes comprising: dispersing said carbon nanotubes in a dispersing medium to prepare a dispersion system; mixing said dispersion system with adsorbent so that type-specific carbon nanotubes contained in said dispersion system are absorbed onto the adsorbent, wherein the adsorbent is modified by a chemical/biological modifier so as to have different adsorption selectivity to carbon nanotubes of different types; and separating the adsorbent from the dispersion system, whereby the type-specific carbon nanotubes adsorbed onto the adsorbent is separated from the carbon nanotubes of another type enriched in the dispersion system; carbon nanotubes produced by the treatment method, and CNTs devices comprising thereof.