• 专利标题:   Preparing high-stable three-dimensional graphene hollow sphere used as fuel cell catalyst support material, comprises e.g. coating graphene oxide on surface of silicon dioxide sphere by electrostatic action, deoxidizing and solidifying.
  • 专利号:   CN108545721-A
  • 发明人:   QIU X, ZHANG H, CHEN J, LU B, XU L, SUN D, TANG Y
  • 专利权人:   UNIV NANJING NORMAL
  • 国际专利分类:   C01B032/184, H01M004/90
  • 专利详细信息:   CN108545721-A 18 Sep 2018 C01B-032/184 201867 Pages: 11 Chinese
  • 申请详细信息:   CN108545721-A CN10478947 18 May 2018
  • 优先权号:   CN10478947

▎ 摘  要

NOVELTY - Preparing high-stable three-dimensional graphene hollow sphere, comprises coating graphene oxide on surface of silicon dioxide sphere by electrostatic action using positively charged silicon dioxide sphere as a hard template, performing deoxidation and solidification by high temperature heat treatment, and removing the silicon dioxide sphere template to obtain high-stable three-dimensional graphene hollow spheres. USE - The high-stable three-dimensional graphene hollow sphere is useful as fuel cell catalyst support material (claimed), and as high-steady state electric catalyst carrier. ADVANTAGE - The method is simple and fast process, provides graphene hollow sphere having uniform size, complete shape, large specific surface area, high graphitization degree, excellent conductivity in electrochemical test, and excellent stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for high-stable three-dimensional graphene hollow sphere produced by the above method.