Multi-componential metal intercalated graphite hybrids synthesized by co-intercalation polymerization towards highefficient microwave absorptions
作者机构：Key Laboratory of Advanced Technologies of Materials(Ministry of Education)School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China School of ChemistrySouthwest Jiaotong UniversityChengdu 610031China Yibin Research InstituteSouthwest Jiaotong UniversityYibin 644000China School of Mechanical EngineeringSouthwest Jiaotong UniversityChengdu 610031China Research Institute of Frontier ScienceSouthwest Jiaotong UniversityChengdu 610031China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第5期
页 面：6369-6379页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：the financial support of the National Natural Science Foundation of China(No.51573149) the Key R&D Projects in Sichuan Province(Nos.2020ZDZX0005 and 2020ZDZX0008)
主 题：co-intercalation intercalation polymerization expanded graphite transition metal microwave absorption
摘 要：Magnetic expanded graphite(EG)hybrids were synthesized by co-intercalation polymerization of aniline together with transition metal *** results show that metal ions(Fe,Co,Ni,Cu)and even their mixtures can co-intercalate into graphite interlayers with flexibly controllable ratios and *** these co-intercalation compounds,Fe/Ni-intercalated graphite with a predesigned mole ratio of 1:3 transforms into NiFe_(2)O_(4)/FeNi_(3)@EG during the annealing *** synthesized magnetic EG hybrids present multiband microwave absorption in C and X bands due to improved impedance match as well as significantly enhanced interfacial polarization relaxation induced by multi-componential *** reflection values of−39.1 dB at 6.95 GHz and−25.7 dB at 9.4 GHz are achieved with an ultra-low loading of 5 wt.%.This work provides a flexible approach for tuning the components and structures of magnetic EG hybrids,which may contribute to the development of microwave absorption materials with superior performances.
维普期刊数据库