Macroscopic electromagnetic synergy network-enhanced N-doped Ni/C gigahertz microwave absorber with regulable microtopography

作     者：Yuelei Pan Qianqian Zhu Jiahui Zhu Yuhang Cheng Bowen Yu Zirui Jia Guanglei Wu Yuelei Pan;Qianqian Zhu;Jiahui Zhu;Yuhang Cheng;Bowen Yu;Zirui Jia;Guanglei Wu

作者机构：Institute of Materials for Energy and EnvironmentState Key Laboratory of Bio-fibers and Eco-textilesCollege of Materials Science and EngineeringQingdao UniversityQingdao 266071China College of Chemistry and Chemical EngineeringQingdao UniversityQingdao 266071China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第7期

页      面：10666-10677页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：This work was financially supported by the National Natural Science Foundation of China(Nos.51407134 and 52002196) the Natural Science Foundation of Shandong Province(Nos.ZR2019YQ24 and ZR2020QF084) the 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) the Special Financial of Shandong Province(Structural Design of High-efficiency Electromagnetic Wave-absorbing Composite Materials and Construction of Shandong Provincial Talent Teams(No.37000022P990304116449)) 

主　　题：magnetic metal-carbon binary composition morphology control dielectric loss magnetic loss electromagnetic wave absorption 

摘      要：To achieve excellent electromagnetic wave(EMW)absorption properties,the microstructure design of the absorber is *** this work,six kinds of N-Ni/C nanostructures with different morphologies were prepared by one-step hydrothermal method and high temperature carbonization by adjusting the types of nickel salts and reaction *** EMW absorption performance of six different morphologies of N-Ni/C nanostructures was compared and *** them,it is found that the nanoflowerlike N-Ni/C composite has excellent dielectric loss and magnetic loss synergistic effect due to its polycrystalline structure,and can obtain excellent EMW absorption *** minimum reflection loss value at a thickness of 1.9 mm is-59.56 dB at 16.88 GHz,and the effective absorption bandwidth value reaches 6.0 GHz at a thickness of 2.2 *** research shows that different morphologies and multiple lattice structures of nanostructures with the same composition have a significant influence on EMW absorption performance,which provides new research ideas for developing high-performance EMW absorbing materials.