• 专利标题:   Sea urchin type microstructure manganese dioxide composite graphene nanosheet powder used as wave absorbing material, comprises hollow sea urchin-like manganese dioxide which is grown on graphene nanosheet and contacts with each other to form network structure.
  • 专利号:   CN114702074-A
  • 发明人:   ZHONG B, SHAN X, WANG C
  • 专利权人:   WEIHAI YUNSHAN TECHNOLOGY CO LTD, HARBIN INST TECHNOLOGY AT WEIHAI
  • 国际专利分类:   B82Y030/00, B82Y040/00, C01B032/194, C01G045/02
  • 专利详细信息:   CN114702074-A 05 Jul 2022 C01G-045/02 202284 Chinese
  • 申请详细信息:   CN114702074-A CN10364461 07 Apr 2022
  • 优先权号:   CN10364461

▎ 摘  要

NOVELTY - A sea urchin type microstructure manganese dioxide composite graphene nanosheet powder comprises a hollow sea urchin-like manganese dioxide which is grown on the graphene nanosheet with single sheet thickness of 0.55-3.74 nm. The particle size of the hollow sea urchin-like manganese dioxide is 2-8 µm. The hollow sea urchin-like manganese dioxide contacts with each other to form a network structure. USE - Sea urchin type microstructure manganese dioxide composite graphene nanosheet powder used as wave absorbing material (claimed). ADVANTAGE - The sea urchin-type micro-structure manganese dioxide composite graphene nano-sheet powder is capable of optimizing impedance matching performance, and has excellent electromagnetic wave absorbing performance and low density. The sea urchin-type micro-structure manganese dioxide composite graphene nano-sheet powder is prepared by simple and economical method. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: manufacture of the sea urchin type microstructure manganese dioxide composite graphene nanosheet powder; and use of sea urchin type microstructure manganese dioxide composite graphene nano-sheet powder, in which one-dimensional manganese oxide in the outer layer of hollow sea urchin-shaped manganese dioxide in the sea urchin-type microstructured manganese dioxide composite graphene nanosheet powder is used as an antenna to induce a microcurrent to increase the loss of incident electromagnetic waves, thereby using as wave absorbing material or as transition layer for electromagnetic waves to enter the material interface to improve impedance matching.