@article{HUANG2024, 
author = {Huizhong HUANG and Bo LI and Chao ZHAO and Xiao JIANG and Xiaojun ZENG},
title = {Construction of Strong Coupling Interface between CoZn@NC and CuS for Ultrathin Electromagnetic Wave Absorption},
year = {2024},
journal = {Journal of Ceramics},
volume = {45},
number = {1},
pages = {89-96},
keywords = {CuS, ultrathin matching thickness, interface coupling, dielectric loss, electromagnetic wave absorption},
url = {https://www.sciopen.com/article/10.13957/j.cnki.tcxb.2024.01.007},
doi = {10.13957/j.cnki.tcxb.2024.01.007},
abstract = {Pollution from electromagnetic waves has prompted the development of high-performance electromagnetic wave (EMW) absorbers. However, single-component absorption materials cannot meet current performance requirements. Therefore, multi-component composites become the focus of research. Here, CoZn-based metal organic framework (CoZn-ZIF-L) nanosheets are synthesized and transformed into nitrogen-doped carbon-wrapped CoZn nanoparticles (CoZn@NC). Subsequently, a hydrothermal process was used to compound ultrasmall CuS nanoparticles on surface of the CoZn@NC to construct a strong interface coupling structure, effectively combining the dielectric properties of CoZn@NC and CuS. It is experimentally demonstrated that the optimized heterostructure exhibited significantly enhanced EMW absorption capacity, with a reflection loss (RL) of −56.2 dB, a matching thickness of only 1.46 mm, and an effective absorption bandwidth (EAB, RL ≤−10 dB) of 3.6 GHz. This work provides an efficient way to design high-performance EMW absorption materials with strong interface coupling.}
}