• 专利标题:   Preparing graphene aerogel composite magnetic nanoparticles material involves preparing graphene oxide, arranging graphite oxide, arranging graphene oxide glue solution, deionized water, reducing agent, polyvinyl alcohol and metal salt.
  • 专利号:   CN108439376-A
  • 发明人:   CHEN P, XU D, XIONG X, YU Q, GUO X, WANG Q
  • 专利权人:   UNIV DALIAN TECHNOLOGY
  • 国际专利分类:   C01B032/184, C09K003/00, H05K009/00
  • 专利详细信息:   CN108439376-A 24 Aug 2018 C01B-032/184 201865 Pages: 9 Chinese
  • 申请详细信息:   CN108439376-A CN10232119 21 Mar 2018
  • 优先权号:   CN10232119

▎ 摘  要

NOVELTY - Preparing graphene aerogel composite magnetic nanoparticles material involves preparing graphene oxide according to the Hummers method, and arranging 2-5 mg/mL graphite oxide. The graphene oxide glue solution, deionized water, reducing agent, polyvinyl alcohol and metal salt are arranged into reaction liquid in a ratio of 40-100 mg:50 mL: 200-600 mg:300-500 mg:500-800 mg. The prepared reaction solution is poured into a hydrothermal synthesis kettle, and hydrothermally reacted at 140-200 degrees C for 6-12 hours, separated, washed with water, and lyophilized to obtain graphene aerogel loaded with a metal salt. The graphene-loaded graphene aerogel precursor loaded with a metal salt is subjected to inert gas protection at 400 to 800 degrees C for high-temperature sintering to obtain graphene aerogel loaded with magnetic nanoparticles. USE - Method for preparing graphene aerogel composite magnetic nanoparticles material for electromagnetic wave absorbing material. ADVANTAGE - The method enables to prepare graphene aerogel composite magnetic nanoparticles material which has high electromagnetic performance, high specific surface area and low density.