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典型文献
Coral-like carbon-based composite derived from layered structure Co-MOF-71 with outstanding impedance matching and tunable microwave absorption performance
文献摘要:
Metal-organic frameworks(MOFs)are considered as a novel type of microwave absorption(MA)material owing to the sufficient pore structure,diverse configurations,and easy-to-control magnetic properties.However,their evolution is limited by the imperfect impedance matching conditions caused by the un-desirable microstructure.Herein,two types of novel porous coral-like carbon/Co3O4 and carbon/Co com-posites have been effectively fabricated for the first time by a facile heat treatment process of precursor Co-MOF-71.The graphitization degree,magnetic property and MA ability of the product can be effort-lessly tuned by altering the heat treatment temperature of Co-MOF-71.Remarkably,S500(Co-MOF-71 calcined at 500℃)composite displays strong and multi-frequency absorption performance,whose min-imum reflection loss(RL)value achieves-36.4 dB with an absorbing thickness of 3.0 mm and attains an effective absorbing bandwidth(RL≤-10 dB)of 5.76 GHz(almost covers whole Ku band)at a thin-ner coating thickness of 2.5 mm.Such superb MA ability has roots in the coral-like structure derived from the layer Co-MOF-71,sufficient electromagnetic loss.This work ameliorates the MA ability of MOFs through a special nanostructural design,which provides a fresh way for the preparation of novel MA materials.
文献关键词:
作者姓名:
Panpan Zhou;Meng Wang;Zhi Song;Yongkang Guan;Lixi Wang;Qitu Zhang
作者机构:
College of Materials Science and Engineering,Nanjing Tech University,Nanjing 211816,China;Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites,Nanjing 211816,China
引用格式:
[1]Panpan Zhou;Meng Wang;Zhi Song;Yongkang Guan;Lixi Wang;Qitu Zhang-.Coral-like carbon-based composite derived from layered structure Co-MOF-71 with outstanding impedance matching and tunable microwave absorption performance)[J].材料科学技术(英文版),2022(13):10-17
A类:
lessly
B类:
Coral,like,carbon,composite,derived,from,layered,outstanding,impedance,matching,tunable,microwave,absorption,performance,Metal,organic,frameworks,MOFs,are,considered,novel,MA,owing,sufficient,pore,diverse,configurations,easy,control,properties,However,their,evolution,limited,by,imperfect,conditions,caused,desirable,microstructure,Herein,two,types,porous,coral,Co3O4,posites,have,been,effectively,fabricated,first,facile,heat,treatment,process,precursor,graphitization,degree,property,ability,product,can,effort,tuned,altering,temperature,Remarkably,S500,calcined,displays,strong,multi,frequency,whose,imum,reflection,loss,RL,value,achieves,dB,absorbing,thickness,attains,bandwidth,GHz,almost,covers,whole,Ku,thin,ner,coating,Such,superb,has,roots,electromagnetic,This,ameliorates,through,special,nanostructural,design,which,provides,fresh,way,preparation,materials
AB值:
0.616454
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