Phase changes and electromagnetic wave absorption performance of XZnC(X=Fe/Co/Cu)loaded on melamine sponge hollow carbon composites  

作　　者：Xiubo Xie Ruilin Liu Chen Chen Di Lan Zhelin Chen Wei Du Guanglei Wu 

机构地区：[1]School of Environmental and Material Engineering,Yantai University,Yantai 264005,China [2]School of Materials Science and Engineering,Hubei University of Automotive Technology,Shiyan 442002,China [3]Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta,Shandong University of Aeronautics,Binzhou 256603,China [4]Institute of Materials for Energy and Environment,State Key Laboratory of Bio-fibers and Eco-textiles,College of Materials Science and Engineering,Qingdao University,Qingdao 266071,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2025年第3期566-577,共12页矿物冶金与材料学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(Nos.52101274,52377026 and 52472131);Taishan Scholars and Young Experts Program of Shandong Province,China(No.tsqn202103057);Natural Science Foundation of Shandong Province,China(Nos.ZR2020QE011 and ZR2022ME089);the Qingchuang Talents Induction Program of Shandong Higher Education Institution,China(Research and Innovation Team of Structural-Functional Polymer Composites);Youth Top Talent Foundation of Yantai University,China(No.2219008);Graduate Innovation Foundation of Yantai University,China(No.GIFYTU2240);College Student Innovation and Entrepreneurship Training Program Project,China(No.202311066088).

摘　　要：Non-stoichiometric carbides have been proven to be effective electromagnetic wave(EMW)absorbing materials.In this study,phase and morphology of XZnC(X=Fe/Co/Cu)loaded on a three dimensional(3D)network structure melamine sponge(MS)carbon composites were investigated through vacuum filtration followed by calcination.The FeZnC/CoZnC/CuZnC with carbon nanotubes(CNTs)were uniformly dispersed on the surface of melamine sponge carbon skeleton and Co-containing sample exhibits the highest CNTs concentration.The minimum reflection loss(RL_(min))of the CoZnC/MS composite(m_(composite):m_(paraffin)=1:1,m represents mass)reached-33.60 dB,and the effective absorption bandwidth(EAB)reached 9.60 GHz.The outstanding electromagnetic wave absorption(EMWA)properties of the CoZnC/MS composite can be attributed to its unique hollow structure,which leads to multiple reflections and scattering.The formed conductive network improves dielectric and conductive loss.The incorporation of Co enhances the magnetic loss capability and optimizes interfacial polarization and dipole polarization.By simultaneously improving dielectric and magnetic losses,ex-cellent impedance matching performance is achieved.The clarification of element replacement in XZnC/MS composites provides an effi-cient design perspective for high-performance non-stoichiometric carbide EMW absorbers.

关 键 词：electromagnetic wave absorption three dimensional network structure melamine sponge derived carbon non-stoichiometric carbide 

分 类 号：TB33[一般工业技术—材料科学与工程]