• 文献标题:   Graphene-doped high-efficiency absorbing material: C-Mn0.5Zn0.5Fe2O4@PDA
  • 文献类型:   Article
  • 作  者:   ZHANG XH, LIU JJ, ZHA LL, CHEN JW, CHEN B, WU JH, YU HL
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF MATERIALS SCIENCEMATERIALS IN ELECTRONICS
  • ISSN:   0957-4522 EI 1573-482X
  • 通讯作者地址:  
  • 被引频次:   4
  • DOI:   10.1007/s10854-021-06884-5 EA SEP 2021
  • 出版年:   2021

▎ 摘  要

MnZn ferrites and their magnetic, electrical, and optical properties make them highly suitable in a number of applications. These ferrites are used in electronic applications, magnetic fluids, and household appliances such as washing machines, refrigerators, and microwave ovens. This paper focuses on a hydrothermal method used to prepare a bayberry spherical manganese-zinc ferrite (Mn0.5Zn0.5Fe2O4), its surface was coated with dopamine (Mn0.5Zn0.5Fe2O4@PDA) and then carbonized to obtain the core-shell structure C-Mn0.5Zn0.5Fe2O4@PDA. Preliminary results show that carbon-coated manganese-zinc ferrite with saturation magnetic properties and coercivity increased from 99 emu and 66.01 Oe to 138 emu and 104.85 Oe, respectively. In addition, the carbonized Mn0.5Zn0.5Fe2O4@PDA (C-Mn0.5Zn0.5Fe2O4@PDA) exhibited favorable microwave absorbing performance with minimum reflection loss (RLmin) of - 17.56 dB and also revealed that the broadest effective absorption bandwidth (RLmin