典型文献
Porous hybrid scaffold strategy for the realization of lightweight,highly efficient microwave absorbing materials
文献摘要：
Exploring an advanced and efficient electromagnetic(EM)wave absorbing material by improving dielec-tric loss capacity and adjusting impendence matching is crucial yet challenging.Herein,the bacterial cellulose(BC)derived carbon aerogel(CA)with a robust nanofibrous network was used as a conduc-tive loss scaffold to dissipate EM waves effectively,and the ZnO microparticles with excellent dielectric properties and low electrical conductivity were decorated on the scaffold to adjust dielectric parameters and impedance matching adequately.By using different zinc precursors,the tunable size and morpholo-gies of ZnO crystals were obtained due to the growth rate of different crystallographic,including flower-like,nanorod like,and cauliflower-like morphologies,which is beneficial to strong multiple reflections,intensive interfacial polarization,better impendence matching,as well as excellent maintenance of the hierarchical structure.Owing to the appropriate impendence matching and the considerable EM wave dissipation,the CA@ZnO composites achieve a superior EM absorbing performance with a broad effective absorbing bandwidth(whole X band)and a minimum reflection coefficient(-53.3 dB).This work paves a new way for developing lightweight and highly efficient EM absorbing materials comprising the carbon scaffold and semiconductor microparticles.
文献关键词：
中图分类号：
作者姓名：
Meng Zhu;Yuting Lei;Heng Wu;Luo Kong;Hailong Xu;Xuanxuan Yan;Yongjian Xu;Lei Dai
作者机构：
Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development,Key Laboratory of Paper Based Functional Materials,China National Light Industry,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science and Technology,Xi'an 710021,China;School of Engineering,Computer and Mathematics Sciences,Auckland University of Technology,55 Wellesley Street East,Auckland,New Zealand;School of Materials Science and Engineering,Shaanxi University of Science and Technology,Xi'an 710021,China;Laboratory for Advanced Interfacial Materials and Devices,Research Center for Smart Wearable Technology,Institute of Textiles and Clothing,the Hong Kong Polytechnic University,Hong Kong SAR 999077,China
文献出处：
引用格式：
[1]Meng Zhu;Yuting Lei;Heng Wu;Luo Kong;Hailong Xu;Xuanxuan Yan;Yongjian Xu;Lei Dai-.Porous hybrid scaffold strategy for the realization of lightweight,highly efficient microwave absorbing materials)[J].材料科学技术（英文版）,2022(34):215-222
A类：
impendence
B类：
Porous,hybrid,scaffold,strategy,realization,lightweight,highly,microwave,absorbing,materials,Exploring,advanced,electromagnetic,EM,by,improving,loss,capacity,adjusting,matching,crucial,yet,challenging,Herein,bacterial,cellulose,BC,derived,carbon,aerogel,CA,robust,nanofibrous,network,was,used,dissipate,waves,effectively,ZnO,microparticles,excellent,dielectric,properties,electrical,conductivity,were,decorated,parameters,impedance,adequately,By,using,different,zinc,precursors,tunable,size,crystals,obtained,due,growth,crystallographic,including,like,nanorod,cauliflower,morphologies,which,beneficial,strong,multiple,reflections,intensive,interfacial,polarization,better,well,maintenance,hierarchical,structure,Owing,appropriate,considerable,dissipation,composites,achieve,superior,performance,broad,bandwidth,whole,minimum,coefficient,dB,This,paves,new,way,developing,comprising,semiconductor
AB值：
0.57132
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