典型文献
Porous carbon polyhedrons coupled with bimetallic CoNi alloys for frequency selective wave absorption at ultralow filler loading
文献摘要：
Combining suitable microstructure and dielectric-magnetic synergy effect is conducive to achieve lightweight,broadband,and high-efficiency microwave absorbing materials within low filler loading.Herein,porous carbon polyhedrons coupled with bimetallic CoNi alloys were synthesized by using metal-organic frameworks(MOFs)as a template and subsequent pyrolysis treatment.Electromagnetic analysis indicated that the existence of metal Ni element could influence the wave attenuation capacity effectively,resulting in frequency selective wave absorption performance.Additionally,the pyrolysis temperature was also closely related to wave absorption intensity.The Co2Ni1/C/PVDF composites calcined at 800℃pos-sessed outstanding wave absorption performance at an ultra-low filler loading of 5 wt％.The minimum reflection loss value achieved-52 dB(10.8 GHz)under the matched thickness of 3 mm.Moreover,the broadest effective absorption bandwidth(RL＜-10 dB)reached 6.2 dB(11.8-18 GHz)for Co/C-800/PVDF composites when the thickness turned into 2 mm.The remarkable wave attenuation ability was mainly ascribed to magnetic and dielectric loss,impedance matching as well as porous structure effect.
文献关键词：
中图分类号：
作者姓名：
Yan-Li Wang;Guang-Sheng Wang;Xiao-Juan Zhang;Chen Gao
作者机构：
School of Chemistry,Beihang University,Beijing 100191,China;College of Chemistry and Materials Engineering,Beijing Technology and Business University,Beijing 100048,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Yan-Li Wang;Guang-Sheng Wang;Xiao-Juan Zhang;Chen Gao-.Porous carbon polyhedrons coupled with bimetallic CoNi alloys for frequency selective wave absorption at ultralow filler loading)[J].材料科学技术（英文版）,2022(08):34-41
A类：
Co2Ni1
B类：
Porous,carbon,polyhedrons,coupled,bimetallic,CoNi,alloys,frequency,selective,absorption,ultralow,filler,loading,Combining,suitable,microstructure,dielectric,synergy,conducive,lightweight,broadband,high,efficiency,microwave,absorbing,materials,within,Herein,porous,were,synthesized,by,using,organic,frameworks,MOFs,template,subsequent,pyrolysis,treatment,Electromagnetic,analysis,indicated,that,existence,element,could,influence,attenuation,capacity,effectively,resulting,performance,Additionally,temperature,was,also,closely,related,intensity,PVDF,composites,calcined,sessed,outstanding,wt,minimum,reflection,loss,value,achieved,dB,GHz,under,matched,thickness,Moreover,broadest,bandwidth,RL,reached,when,turned,into,remarkable,ability,mainly,ascribed,impedance,matching,well
AB值：
0.58112
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