Patents by Inventor Hongtao Cong

Hongtao Cong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Production of single-walled carbon nanotubes by a hydrogen arc discharge method
    Patent number: 6517800
    Abstract: A method for producing a single-walled carbon nanotube product by a hydrogen arc discharge method includes providing an anode including graphite powder, catalyst metal, and a growth promoter in an atmosphere containing hydrogen; providing a cathode in the atmosphere; and inducing an electric arc across the anode and cathode to thereby consume the anode and produce the single-walled carbon nanotube product. Additionally, the single-walled carbon nanotube product may be soaked in an acid or an oxidative reactant and heated under vacuum to produce a hydrogen storage material.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: February 11, 2003
    Assignee: Institute of Metal Research of The Chinese Academy of Sciences
    Inventors: Huiming Cheng, Chang Liu, Hongtao Cong, Min Liu, Yueying Fan, Ge Su