摘要
二维过渡金属碳化物(MXenes)由于其多层结构、优异的导电性和较大的层间距,在电磁波吸收领域具有广阔的发展前景。本采用静电自组装法制备了一种多层结构的Nb_(2)C纳米片和一维纳米棒形貌的MnO_(2)组成的复合体系。通过研究发现,Nb_(2)C/MnO_(2)复合材料质量比为1∶1时,最小反射损耗值在16.98 GHz处可达到-29.22 dB,匹配厚度为4.5 mm,有效吸收带宽为1.36 GHz,是一种具有强吸收电磁波特点的复合材料。
Two dimensional transition metal carbides(Mxenes)have broad development prospects in the field of electromagnetic wave absorption because of their multilayer structure,excellent conductivity and large layer spacing.In this experiment,a composite system composed of multilayer Nb_(2)C nanosheets and MnO_(2) with one-dimensional nanorod morphology was prepared by electrostatic self-assembly method.It was found that when the mass ratio of Nb_(2)C/MnO_(2) composite was 1∶1,the minimum reflection loss could reach-29.22 dB at 16.98 GHz,the matching thickness was 4.5 mm and the effective absorption bandwidth was 1.36 GHz,showing the characteristics of strong absorption of electromagnetic wave.
作者
杨彩笛
王晓磊
衣姝颖
YANG Cai-di;WANG Xiao-lei;YI Shu-ying(Shenyang University of Technology,Shenyang Liaoning 110870,China)
出处
《辽宁化工》
CAS
2022年第9期1223-1226,共4页
Liaoning Chemical Industry
关键词
碳化铌
二氧化锰
吸波性能
静电自组装
Nb_(2)C
MnO_(2)
Absorbing performance
Electrostatic self-assembly
