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Integration of Multiple Heterointerfaces in a Hierarchical 0D@2D@1D Structure for Lightweight,Flexible,and Hydrophobic Multifunctional Electromagnetic Protective Fabrics

查看全文 作　　者：Shuo [1]Zhang;Xuehua [1]Liu;Chenyu [1]Jia;Zhengshuo [1]Sun;Haowen [1]Jiang;Zirui [2]Jia;Guanglei [1]Wu 高影响力作者 机构地区：[1]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,People’s Republic of China;[2]College of Chemistry and Chemical Engineering,Qingdao University,Qingdao 266071,People’s Republic of China高影响力机构 出　　处：《Nano-Micro Letters》索引2023年第15卷第11期,共24页高影响力期刊 基　　金：supported by the National Natural Science Foundation of China(No.51407134,No.52002196);Natural Science Foundation of Shandong Province(No.ZR2019YQ24,No.ZR2020QF084);Taishan Scholars and Young Experts Program of Shandong Province(No.tsqn202103057);the Qingchuang Talents Induction Program of Shandong Higher Education Institution(Research and Innovation Team of Structural-Functional Polymer Composites);Special Financial of Shandong Province(Structural Design of Highefficiency Electromagnetic Wave-absorbing Composite Materials and Construction of Shandong Provincial Talent Teams(No.37000022P990304116449)). 摘　　要：The development of wearable multifunctional electromagnetic protective fabrics with multifunctional,low cost,and high efficiency remains a challenge.Here,inspired by the unique flower branch shape of“Thunberg’s meadowsweet”in nature,a nanofibrous composite membrane with hierarchical structure was constructed.Integrating sophisticated 0D@2D@1D hierarchical structures with multiple heterointerfaces can fully unleash the multifunctional application potential of composite membrane.The targeted induction method was used to precisely regulate the formation site and morphology of the metal–organic framework precursor,and intelligently integrate multiple heterostructures to enhance dielectric polarization,which improves the impedance matching and loss mechanisms of the electromagnetic wave absorbing materials.Due to the synergistic enhancement of electrospinning-derived carbon nanofiber“stems”,MOF-derived carbon nanosheet“petals”and transition metal selenide nano-particle“stamens”,the CoxSey/NiSe@CNSs@CNFs(CNCC)composite membrane obtains a minimum reflection loss value(RL_(min))of-68.40 dB at 2.6 mm and a maximum effective absorption bandwidth(EAB)of 8.88 GHz at a thin thickness of 2.0 mm with a filling amount of only 5 wt%.In addition,the multi-component and hierarchical heterostructure endow the fibrous membrane with excellent flexibility,water resistance,thermal management,and other multifunctional properties.This work provides unique perspectives for the precise design and rational application of multifunctional fabrics. 关 键 词：Electrostatic spinning MOFs Bimetallic selenide Hierarchical structures Multiple heterointerfaces Electromagnetic wave absorption
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