Construction of one-dimensional hierarchical MoS_(2)/Ni_(3)S_(2) composites with enhanced interfacial polarization and improved wideband microwave absorption  

作　　者：Kaicheng Luo Biao Zhao Chunyang Xu Chongyun Liang Chang Zhang Yiqian Du Xiaowei Lv Jincang Zhang Limin Wu Renchao Che 

机构地区：[1]Laboratory of Advanced Materials,Shanghai Key Lab of Molecular Catalysis and Innovative Materials,Academy for Engineering&Technology,Fudan University,Shanghai,200438,China [2]School of Microelectronics,Fudan University,Shanghai,200433,China [3]Zhejiang Laboratory,Hangzhou,311100,China [4]Inner Mongolia University,Hohhot,010021,China

出　　处：《Journal of Materials Science & Technology》2024年第11期22-28,共7页材料科学技术（英文版）

基　　金：Ministry of Science and Technology of China(973 Project Nos.2021YFA1200600 and 2018YFA0209100);National Natural Science Foundation of China(Nos.52231007,51725101,11727807)。

摘　　要：The construction of one-dimensional(1D)sulfides has attracted extensive attention for improving mi-crowave absorption(MA)performance owing to the anisotropic conductive networks.However,the syn-thesis of conductive 1D hierarchical materials with unique interfacial polarization and excellent MA prop-erties remains challenging.In this study,cable-like MoS_(2)/Ni_(3)S_(2) was synthesized by a one-step hydrother-mal strategy.The complex permittivity of the binary composites could be improved by tuning the thick-ness of the MoS_(2) coating.Importantly,the construction of heterogeneous contacts by MoS_(2) and Ni_(3)S_(2) contributed to enhanced polarization loss,and the charge distribution was validated by electron holog-raphy.The wide efficient absorption bandwidth can reach above 4.8 GHz at a thin thickness.These new discoveries shed light on novel structures for 1D sulfide materials and the design of functional core-shell composites for microwave absorption.

关 键 词：1D sulfide materials Microwave absorption MoS_(2)/Ni_(3)S_(2) Interfacial polarization Core-shell composites 

分 类 号：TB332[一般工业技术—材料科学与工程] TM912[电气工程—电力电子与电力传动]