Abstract
Graphene nanoribbons and carbon onions are directly prepared by electron beam irradiation of polyacrylonitrile and expanded polystyrene nanofibers, respectively. By controlling the irradiation process in a high resolution transmission electron microscope, the number of layers of the graphene nanoribbons, as well as the dimension of the carbon onions, can be controlled. It is found that the initial diameter of the nanofiber has a strong effect on the final results. A mechanism is proposed to explain the transformation of polymer nanofibers to carbon nanostructures under electron beam irradiation. This supposes that the polymer nanofibers are first carbonized and then graphitized as a result of the high energy electrons. According to the mechanism, it is believed that all polymer nanofibers could be carbonized and then converted to graphene nanoribbons by proper electron beam irradiation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
