Patents by Inventor Xinjun Hu

Xinjun Hu 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).

  • Method for preparing large graphene sheets in large scale
    Patent number: 10717652
    Abstract: A method for preparing large graphene sheets in large scale includes steps of: under a mild condition, processing graphite powders with intercalation through an acid and an oxidant; washing away metal ions and inorganic ions in the graphite powders with dilute hydrochloric acid, then filtering and drying; and, finally processing with a heat treatment. The present invention breaks through a series of bottlenecks restricting an efficient preparation of graphene that result from a traditional method of using large amounts of deionized water to wash graphite oxide to be neutral, and easily realizes a batch production. A radial scale of the prepared graphene sheets is distributed from 20 um to 200 um.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: July 21, 2020
    Assignee: SHANGHAI KYORENENEW MATERIALS TECHNOLOGY CO., LTD
    Inventors: Yongxiao Bai, Xinjun Hu, Yan Sha, Xiaolin Sha
  • Method for preparing large graphene sheets in large scale
    Publication number: 20170334727
    Abstract: A method for preparing large graphene sheets in large scale includes steps of: under a mild condition, processing graphite powders with intercalation through an acid and an oxidant; washing away metal ions and inorganic ions in the graphite powders with dilute hydrochloric acid, then filtering and drying; and, finally processing with a heat treatment. The present invention breaks through a series of bottlenecks restricting an efficient preparation of graphene that result from a traditional method of using large amounts of deionized water to wash graphite oxide to be neutral, and easily realizes a batch production. A radial scale of the prepared graphene sheets is distributed from 20 um to 200 um.
    Type: Application
    Filed: March 12, 2015
    Publication date: November 23, 2017
    Inventors: Yongxiao Bai, Xinjun Hu, Yan Sha, Xiaolin Sha