Hydrogen Passivation Induced Dispersion of Carbon Nanotubes and Graphene


Reference #: 00943

The University of South Carolina is offering licensing opportunities for this technology

Potential Applications:

Dispersion of carbon nanotubes (CNTs) into different media both in research and practice

Advantages and Benefits:

  1. Very efficient in dispersing MWCNTs
  2. Excellent dispersion of MWCNTs can be achieved with only 2h ultra-sonication after HP, which is much shorter than the conventional ultrasonic method that requires 10hr
  3. This method offers opportunities for dispersing a series of materials which tend to bundle together due to dangling bond, such as Graphene
  4. Unlike other surface modifications, where MWCNT surface is functionalized by the reactions with atoms or molecules such as fluorine, alkanes, HP adds no impurities that may affect the further application of the dispersed MWCNTs. In fact, the hydrogen absorbed in MWCNTs can be released at temperature around 600oC so that none impurities would remain in MWCNTs.

Invention Description:

A significant challenge for both fundamental research and practical applications of carbon nanotubes (CNT) is to disperse CNTs into certain media, such as ethanol, water, or polymers. Since CNTs are insoluble and have the propensity to form bundles due to their strong hydrophobicity and van der Waals attractions, a great deal of effort has been invested to develop efficient and low-cost approaches to realize full dispersion of CNTs.

The subject technology is a novel method that combines ultra-sonication and HP and helps disperse MWCNTs in both ethanol solution and the epoxy resin. Hydrogen binding to multi-walled nanotubes (MWCNTs) is extremely effective and facile. Excellent dispersion of MWCNTs is achieved in both media.

Patent Information:
Title App Type Country Serial No. Patent No. File Date Issued Date Expire Date Patent Status
Hydrogen Passivation Induced Dispersion of Carbon Nanotubes and Graphene Utility United States 13/771,518 9,011,986 2/20/2013 4/21/2015 2/20/2033 Abandoned
For Information, Contact:
Technology Commercialization
University of South Carolina
Xiaodong Li
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