3D Graphene Fibers

  • Author: ChemistryViews.org
  • Published: 13 February 2018
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
  • Source / Publisher: Advanced Materials/Wiley-VCH
thumbnail image: 3D Graphene Fibers

Graphene sheets have a variety of useful physical and chemical properties. However, to retain these properties, agglomeration of the sheets has to be avoided. Arranging the sheets in 3D networks is a possible solution. However, networks synthesized using currently available methods often have low electrical conductivity and large pore sizes, which hampers their application.


Jie Yu, Harbin Institute of Technology, University Town, Shenzhen, China, and colleagues have developed a method for the synthesis of a 3D assembly of graphene sheets on a carbon fiber. This material has improved properties compared with currently available graphene sheet networks. The team used electrospinning to create nanofibers from the polymer polyacrylonitrile (PAN). The nanofibers were carbonized in NH3 to give carbon nanofibers with etched grooves. Thermal chemical vapor deposition in a mixture of CH4 and H2 was then used to grow graphene sheets on the carbon nanofibers (pictured).


The graphene sheets on the resulting 3D graphene fibers have fully exposed edges, which leads to properties such as superhydrophobicity and superoleophilicity. The fibers outperform previously available 3D graphene materials with regard to electrical conductivity and electromagnetic shielding. According to the researchers, the synthesis strategy could also be used to grow the graphene sheets on other substrates.


 

Article Views: 935

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH