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Rational construction of heterointerfaces in biomass sugarcane-derived carbon for superior electromagnetic wave absorption

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International Journal of Minerals,Metallurgy and Materials 2024年第12期31卷 2749-2759页

作者： Shijie Zhang Di Lan Jiajun Zheng Ailing Feng Yaxing Pei Shichang Cai Suxuan Du Xingliang Chen Guanglei Wu Zirui Jia Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province Shaoxing Key Laboratory of High Performance Fibers&ProductsShaoxing UniversityShaoxing 312000China School of Materials Science and Engineering Hubei University of Automotive TechnologyShiyan 442002China School of Material Science and Engineering Henan University of TechnologyZhengzhou 450001China Institute of Physics&Optoelectronics Technology Baoji University of Arts and SciencesBaoji 721016China Zhengzhou Research Institute for Abrasives and Grinding Zhengzhou 450002China Institute of Materials for Energy and Environment State Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China

The pervasive adoption of 5th generation mobile communication technology propels electromagnetic wave(EW)absorbents to achieve high-level *** heterointerface construction is crucial to the improvement of absorption ***,a series of ultralight composites with rational heterointerfaces(Co/ZnO@N-doped C/layer-stacked C,MSC)is fabricated by calcination with ration-al construction of sugarcane and CoZn-zeolitic imidazolate framework(ZIF).The components and structures of as-prepared composites were investigated,and their electromagnetic parameters could be adjusted by the content of *** composites possess excellent EW absorption performance,especially *** optimal minimum reflection loss and effective absorption band of MSC-3 can reach−42 dB and 7.28 GHz at the thickness of only 1.6 mm with 20wt%filler *** excellent performance is attributed to the syner-gistic effect of dielectric loss stemming from the multiple heterointerfaces and magnetic loss induced by magnetic single *** sugar-cane-derived layer-stacked carbon has formed consecutive conductive networks and has further dissipated the electromagnetic energy through multiple reflection and conduction ***,the simulated radar cross section(RCS)technology manifests that MSC-3 possesses outstanding EW attenuation capacity under realistic far-field *** study provides a strategy for building efficient ab-sorbents based on biomass.

关键词： sugarcane-derived carbon heterointerfaces bimetallic metal-organic frameworks EW absorption radar cross section

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