Large-area ultra-thin carbon nanotube film and its preparation process
Title：
Large-area ultra-thin carbon nanotube film and its preparation process
Application Number：
 200510123986
Application Date：
 2005/11/25
Announcement Date：
 2006/07/19
Pub. Date：
Publication Number：
 1803594
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C01B 31/02
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Wei Jinquan, Zhu Hongwei, Jia Yi, Wei Bingqing, Wang Zhicheng, Wang Kunlin, Luo Jianbin, Liu Wenjin, Zheng Mingxin, Wu Dehai
Key Words：
 Large-area, ultra-thin, carbon nanotube film, preparation process
Abstract：
 The large-area untrathin nano carbon tube film with well feature in microcosmic level comprises nano carbon tubes with centimeter-level length and more then 90wt% purity. Wherein, the least thickness of single-layer film can achieve 20nm with near transparent color and more then 10cm2 film area; there are multiple functional groups on tube surface. It also discloses the opposite preparation technique: with the macroscopic body of nano carbon tube, oxidating the macroscopic body in air; then, dipping into hydroperoxide; adding strong acid to poach till the liquid shows neutrality; finally, adding alcohol or acetone into the liquid to float the tube and form the film.
Claim：
Priority：
PCT：
LegalStatus：

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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